whats-best.ai

Billing & Invoicing

Sequence

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Panel rating · 6 judges · How to read the stars

Category median

Sovereignty: 1 of 4 dimensions proven

0–5 in half steps. 5 means the rubric's top anchor is met on the evidence.

by Sequence HQ Ltd · www.sequencehq.com

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Sequence at a glance

Vendor
Sequence HQ Ltd
Headquarters
Not stated on the vendor’s pages as of 26 Oct 2026
Data hosting
Not stated on the vendor’s pages as of 26 Oct 2026
Free plan
Not stated on the vendor’s pages as of 26 Oct 2026
Panel verdict
The AI panel rates Sequence 3/5, the mean of 6 judges. Sequence, a billing and revenue platform from Sequence HQ Ltd of England and Wales, scores highest on the subscription engine and revenue and handoff: usage, seat, hybrid and credit pricing with proration and amendments, quotes that become contracts, and revenue recognition to ASC 606 and IFRS 15 with journals exportable to Xero, QuickBooks, NetSuite or a generic ledger. how scores are made
As of
Vendor pages captured 26 Oct 2026; evaluated by the panel 28 Oct 2026. all sources

Sequence alternatives, European ones first →

Read this page as one judge. Each weighs the same scores by what they care about.

The panel's verdict

Sequence, a billing and revenue platform from Sequence HQ Ltd of England and Wales, scores highest on the subscription engine and revenue and handoff: usage, seat, hybrid and credit pricing with proration and amendments, quotes that become contracts, and revenue recognition to ASC 606 and IFRS 15 with journals exportable to Xero, QuickBooks, NetSuite or a generic ledger. Invoicing compliance is the weakest criterion at 4 to 4: credit notes are well built, but we found no public information on sequential numbering, retention or structured e-invoices such as XRechnung, ZUGFeRD or Peppol. Pricing transparency and sovereignty sit low too: above the Growth tier at $799 per month for startups with less than $1m in annual revenue, both remaining tiers are bespoke; processing is described as limited to the EU and US, the captured pages give different figures on ISO 27001, and an agreement to be acquired by Intuit is signed but not stated as completed. Judges part narrowly on tax handling, on VIES validation and who maintains the rate tables.

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Speaks for it

  • Subscription engine scores 8-9, covering usage, seat, hybrid and credit-based pricing with proration, amendments and quotes that become contracts.
  • Revenue recognition runs to ASC 606 and IFRS 15 in a dedicated sub-ledger, with journal exports for direct import into Xero, QuickBooks, NetSuite or a generic ledger.
  • Dunning workflows time reminders to the due date, branch on customer or invoice total, stop automatically when an invoice is paid, voided or written off, and keep a full audit trail.
  • Credit notes can be created against issued invoices or from scratch, adjusted until finalized, voided rather than edited, and tracked with ledger balances and an audit trail.
  • The API is versioned with a sandbox, and webhooks arrive HMAC-signed with 24-hour retries.

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Held against it

  • Invoicing compliance scores 4 to 4, and we found no public information on sequential numbering, mandatory invoice content, retention or structured e-invoices such as XRechnung, ZUGFeRD or Peppol.
  • Above $1m in annual revenue, the Core and Scale tiers are both bespoke, with a monthly platform fee assessed on projected billed revenue and required features.
  • Tax handling scores 6-7, with no public information on VIES validation of VAT IDs or OSS reporting data, and rate tables maintained by the seller.
  • Collections and dunning scores 6 to 6, and we found no public information on automatic retries of failed payments, card updaters, SEPA direct-debit mandates, or moving subscriptions and payment tokens to another provider.
  • Sovereignty scores 4-5, with no public information on hosting infrastructure or subprocessor locations, processing described as limited to the EU and US, and the captured pages giving different figures on ISO 27001.

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Best for

  • You run usage-based or hybrid B2B SaaS pricing with credits, minimums and frequent contract amendments and want quotes turned into contracts in the platform.
  • Your finance team closes on ASC 606 or IFRS 15 and needs journals that reconcile to deferred-revenue and waterfall reports and import into Xero, QuickBooks or NetSuite.
  • You are a startup with less than $1m in annual revenue and want a publicly priced tier at $799 per month.
  • You chase overdue invoices manually today and want reminder workflows with human approval checkpoints and a per-reminder audit trail.

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Avoid if

  • You must issue structured e-invoices such as XRechnung, ZUGFeRD or Peppol — invoicing compliance is the lowest score at 4 to 4, and the captured pages show a PDF invoice.
  • Your revenue is above $1m and you need to compute your annual cost from public pages — the Core and Scale tiers above Growth are both bespoke pricing.
  • You need processing confined to Europe — processing is described as limited to the EU and US under standard contract clauses, and an agreement to be acquired by Intuit has been signed.
  • You expect the vendor to maintain tax rates — the rate tables are maintained by the seller, and the product prompts you when a region has none configured.

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The scores

Panel median The median of the judges’ scores per criterion. Each label opens its reasoning below.

Plans, pricing models & subscription lifecycle

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How this is scored

How the product models what is sold and to whom: plans, add-ons and price points, trials, upgrades and downgrades with proration, usage-based and seat-based pricing, contract terms and renewals, quotes, and a self-service portal where the customer changes or cancels their own subscription.

0 — No subscription model; recurring charges are set up by hand per customer or per invoice.

3 — A recurring invoice or a fixed plan that repeats on a schedule, but no proration, no trials, no add-ons and no usage component.

5 — Plans with add-ons and trials, upgrades and downgrades with proration, renewals and cancellations handled by the system, and a customer portal for viewing and changing the subscription.

8 — Usage-based, tiered, volume and seat-based pricing with metering through an API, contracts with minimum terms, ramps and notice periods, quotes that convert into subscriptions, multiple currencies and price books, and the subscription history kept per customer.

10 — The commercial model lives in the product: hybrid pricing (commitments, prepaid credits, overage) without custom code, price changes rolled out to existing customers with grandfathering, entitlements exposed to the selling application, and every change to a subscription versioned and attributed.

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The SaaS Founder

This is built for exactly what I'm about to do: usage, seats, hybrid, minimums and credits with proration and amendments handled, real-time metering turned into billable metrics, and credit grants that burn down monthly with roll-over and overage after burn-down, all configurable via dashboard or API. Quotes turn into contracts through the CPQ, and the branded customer portal shows invoice history, real-time usage and credit transactions with optional email authentication. What holds it back for me: I found no public information on rolling price changes out to existing customers with grandfathering, on entitlements exposed to my selling application, or on customers changing or cancelling their own subscription inside the portal. 1 5 6

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The Finance Lead

The commercial model genuinely lives in the platform: usage, seats, hybrid and minimum commitments, credit grants that burn down monthly with roll-over and overage after burn-down, and documented pricing models from linear to percentage-based graduated and volume tiers, all with proration and amendments handled and real-time metering rolled into the invoice. Quotes turn into contracts through the built-in CPQ and customers get a branded portal with invoice history, live usage and credit balances. I found no public information on grandfathered price changes or entitlements exposed to the selling application. 1 2 5 6

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The Billing Engineer

The documented model covers usage, seats, hybrid, minimums and credits with proration and amendments, real-time metering turned into billable metrics, a rich set of usage shapes (linear, graduated, volume, packaged, percentage-based), and CPQ that turns deal terms into a quote and contract, with credit grants, burndowns, rollover and overage available via API or dashboard. That clears the usage/tier/volume/seat bar with metering and quotes-to-contracts. We found no public information on grandfathering for price changes or entitlements exposed to the selling application, and the customer portal is for invoices, usage and credits rather than self-serve plan changes, so I stop short of the top. 1 5 6 12

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The Service-Business Owner

Usage, seats and hybrid models with minimums, credits, burndowns and overage are handled natively, proration and amendments included, and a CPQ turns deal terms into a configurable quote and contract, with a branded customer portal showing invoice history, real-time usage and credit transactions. The contract intake agent that maps every term of a signed contract to my catalogue and flags non-standard terms is exactly what my two hundred maintenance contracts need. I found no statement on rolling price increases out to existing customers with grandfathering, so I cannot confirm the top level. 1 5 6 7

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The Tax Adviser

The commercial model lives in the product: usage, seats, hybrid, minimums and credits with monthly burndown, rollover and overages, all with proration and amendments handled, quotes turned into contracts through the CPQ, and real-time metering priced against each contract. The branded customer portal shows invoice history, real-time usage and credit transactions, and can be embedded via the API. We found no public information on customers changing or cancelling their own subscription in the portal, on grandfathering of price changes, or on entitlements exposed to the selling application. 1 5 6 7 14

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The Skeptic

The commercial model genuinely lives in the product: usage, seats, hybrid and minimums with proration and amendments, real-time metering turned into billable metrics, graduated, volume, percentage and packaged tiers, credit grants with monthly burndown, rollover and overage, quotes that become contracts, and a branded customer portal showing invoices, usage and credits. What I could not find is the change-control side of anchor ten: no published word on grandfathering existing customers when prices move, entitlements exposed to the selling application, or per-change subscription versioning. 1 5 6 2

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Invoices & e-invoicing compliance

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How this is scored

Whether the invoices the product issues are legally valid where the customer is: mandatory invoice content, sequential numbering, credit notes and cancellations instead of edits, retention and archiving to GoBD, and structured e-invoices (XRechnung, ZUGFeRD/Factur-X, Peppol) for business customers and public bodies.

0 — No invoices; the product charges cards or sends payment requests and the seller writes invoices elsewhere.

3 — PDF invoices from a template, but numbering, mandatory content, corrections and retention are not described.

5 — Invoices with sequential numbering and the mandatory content stated, credit notes and cancellations instead of edits, invoices in several languages and currencies, and a documented archive.

8 — Structured e-invoices to EN 16931 issued as XRechnung or ZUGFeRD/Factur-X and sent through Peppol, GoBD-compliant numbering and unalterable archiving stated, invoice data exportable for a tax audit, and the e-invoicing mandates in named EU countries addressed.

10 — Invoicing that stands up in any audit it may face: e-invoicing to public bodies and businesses in several EU countries with the channels named, clearance and reporting models (France, Italy, Poland) supported where they apply, a Verfahrensdokumentation or equivalent offered, and every invoice traceable to the subscription event that produced it.

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The SaaS Founder

Credit notes are handled the way an auditor wants: created from scratch or against issued invoices, line items editable until finalization, voided rather than edited, applied to invoices with a ledger balance tracking remaining credit, and a stated audit trail for corrections. Beyond PDF credit notes and the invoice PDF, though, I found no public information on sequential numbering, mandatory invoice content, retention or archiving to any standard, or structured e-invoices such as XRechnung, ZUGFeRD or Peppol — so I'd be taking the invoice's legal validity on faith. 7 8

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The Finance Lead

Credit notes are handled the way an auditor wants: created against issued invoices or from scratch, editable until finalized, voidable, tracked with a ledger balance, and carrying the related invoice number and amount. Beyond that I found no public information on sequential numbering, mandatory invoice content, retention or archiving, or structured e-invoices such as XRechnung, ZUGFeRD or Peppol. 1 7 8

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The Billing Engineer

Credit-note handling is properly engineered: create from an issued invoice or from scratch, edit line items until finalized, void, apply against invoices with a ledger balance, and an audit trail — corrections instead of edits. But we found no public information on sequential numbering, mandatory invoice content, archiving and retention for invoices, or structured e-invoices such as XRechnung, ZUGFeRD and Peppol, so it sits between templated PDFs and legally complete invoicing. 1 7 8 9

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The Service-Business Owner

Invoices follow the contract terms with anomalies flagged before sending, and credit notes are properly built: created against issued invoices, adjustable until finalized, voidable instead of edited, with application tracking and a stated audit trail. I found no public information on sequential numbering, mandatory invoice content or archiving, and nothing on structured e-invoices such as XRechnung, ZUGFeRD or Peppol, which my public-sector customers in Germany require. 1 7 8

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The Tax Adviser

Credit-note discipline is the strongest part: notes are created against issued invoices or from scratch, line items adjust until finalisation, notes are voided rather than edited away, they carry the related invoice number, date and amount, and maintain an audit trail — exactly how corrections should work. Tax IDs and reverse-charge VAT numbers are placed on the invoice. We found no public information on sequential invoice numbering, a documented invoice archive, or structured e-invoices to EN 16931 such as XRechnung, ZUGFeRD/Factur-X or Peppol. 5 7 8 10

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The Skeptic

Credit notes are done the right way — created from scratch or against an issued invoice, line items editable until finalized, voiding, ledger balances, application status, and a stated audit trail — and invoices carry the customer's tax ID and reverse-charge marking. But the audit-facing basics are undocumented: we found no public information on sequential numbering, retention or archiving, or structured e-invoicing (XRechnung, ZUGFeRD/Factur-X, Peppol); what the captured pages show is a PDF invoice. 5 7 8 10

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Cross-border VAT & tax handling

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How this is scored

How the product gets tax right when the seller sells across borders: VAT rates per country and product type, reverse charge for business customers with VAT ID validation (VIES), the EU One-Stop-Shop, US sales tax — or, for a merchant of record, which tax liability it takes on in its contract and which it leaves with the seller.

0 — No tax handling; the seller types the rate on every invoice.

3 — One configurable VAT rate or a manual rate table, with no customer-location logic and no VAT ID check.

5 — Tax rates applied by customer country and status, reverse charge for business customers with a VAT ID field, and tax shown correctly on invoices and in reports.

8 — Automatic VAT per country and product type, VIES validation of VAT IDs, OSS reporting data, evidence of customer location kept, US sales tax through a named engine — or a merchant-of-record contract that states the tax liability it assumes and in which countries.

10 — Tax is discharged and evidenced: filings or filing data for OSS and the countries sold into, rate changes maintained by the vendor with a stated process, tax decisions per invoice explainable, and the division of liability between seller and vendor written into the terms.

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The SaaS Founder

The reverse-charge flow I need across nine EU countries is documented in detail: customers marked reverse charged, those invoices marked as such with no tax rates and the customer's VAT number shown, and tax applied per line from the product's tax category, the customer's region and their tax status, with rates by country or individual US state. Four named tax engines (Avalara, Anrok, Numeral, Sphere) extend this to US sales tax and automated filing. What I did not find is VIES validation of VAT IDs, OSS reporting data, or vendor-maintained rate changes — the rate table looks like something I maintain myself, with a prompt when a region has none configured. 9 10

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The Finance Lead

Tax is applied to each invoice line from the product's tax category, the customer's region and tax status, with regions down to individual US states, and reverse-charge invoices are marked as such, carry no tax rate, and include the customer's VAT number taken from the Tax ID field. Four named engines — Avalara, Anrok, Numeral, Sphere — extend calculation to ZIP level and to automated return filing. I found no public information on VIES validation of VAT IDs or OSS reporting data. 9 10

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The Billing Engineer

Tax is applied per invoice line from the product's tax category, the customer's region and their tax status, with rates configurable per country and per individual US state, reverse-charge invoices marked as such with the customer's VAT number and no tax rates, and four named tax engines (Avalara, Anrok, Numeral, Sphere) for finer calculation and automated filing. We found no public information on VIES validation of VAT IDs or One-Stop-Shop reporting data, which is what holds this below the top. 9 10

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The Service-Business Owner

Tax rates are configured per region including individual US states and applied per product tax category, customer region and tax status, and reverse-charge customers are marked as such with no tax rates on the invoice and their VAT ID shown via the tax registration field — that covers my EU business customers. Four named tax engines (Avalara, Anrok, Numeral, Sphere) extend calculation to filing. I found no public information on VIES validation of VAT IDs or One-Stop-Shop reporting data, and the rate table is one I maintain myself rather than the vendor. 9 10

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The Tax Adviser

Tax is applied to each invoice line from the product's tax category, the customer's region and their tax status, with rate tables per country and per US state, and reverse-charge invoices carry the customer's VAT number and no tax rate — sound mechanics. What I want before signing off a reverse charge is validation of that VAT number, and we found no public information on VIES checks, OSS reporting data, or stored evidence of customer location; the rate tables are also maintained by the seller rather than the vendor. US sales tax is covered through named engines including Avalara and Anrok, with Numeral handling automated return filing. 9 10

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The Skeptic

Rates are configured per region including individual US states and applied per product tax category, customer region and tax status; reverse charge is marked on the invoice with the customer's VAT number; and named engines (Avalara, Anrok, Numeral, Sphere) handle calculation, ZIP-level determination and filing. For a European seller the gaps are exactly the ones that bite: we found no public information on VIES validation of VAT IDs, OSS reporting data, or evidence of customer location kept, and no statement of who carries the liability for a wrong rate. 9 10

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Payment collection, dunning & portability

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How this is scored

How invoices turn into money: which payment providers and methods the product works with, SEPA direct-debit mandates, automatic retries and dunning sequences, payment reconciliation, collections handover — and whether the seller can move subscriptions and stored payment details to another provider.

0 — No collection; invoices are sent and payment is chased by hand.

3 — One built-in payment provider with card payments, and failed payments reported but not retried or chased.

5 — Several payment providers or methods including SEPA direct debit with mandates, automatic retries of failed payments, dunning emails with configurable steps, and payments matched to invoices.

8 — Gateway-agnostic collection across named providers, smart retries and card updaters, dunning with escalation and service suspension rules, bank-transfer reconciliation, a handover to a collection agency, and recovery reported.

10 — Collection is portable and measurable: subscriptions and payment tokens importable and exportable with a documented migration path, routing across providers per country or method, recovered revenue reported per dunning step, and no lock-in to the vendor's own payment service stated in the terms.

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The SaaS Founder

Dunning is genuinely configurable: reminder sequences on a workflows canvas, timing relative to the due date, branching by customer or invoice amount, automatic stop when an invoice is paid, voided or written off, approval checkpoints with a full audit trail, and an agent that checks every payment reconciles — and collection is not locked to one provider, with Stripe and GoCardless named and portal payments via the Stripe connector. But I found no public information on automatic retries of failed payments, card updaters, service suspension rules, a handover to a collection agency, or export of subscriptions and payment tokens to another provider; the documented migration runs from other platforms in, not out. 1 11 12

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The Finance Lead

The dunning side is genuinely good: reminder sequences timed against the due date, branching on customer or invoice amount, a human approval stop before a reminder ever reaches a key account, reminders that stop themselves when an invoice is paid or written off, and an execution summary giving a full audit trail of what was sent. Collection runs through named providers including Stripe and GoCardless, with payments collectible from the customer portal and bank-transfer destinations in the UK, EU, US and Sweden. I found no public information on automatic retries of failed payments, card updaters, SEPA mandate management or a handover to a collection agency. 1 5 8 11 12

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The Billing Engineer

Dunning is the strong part: reminder workflows with timing relative to the due date, branching on customer or invoice total, approval checkpoints, auto-stop when an invoice is paid, voided or written off, and a full audit trail — plus bank-transfer destinations (IBAN, UK transfer, ACH, wire, Swedish Bankgiro), Stripe and GoCardless connectors, portal payments via Stripe, and migration in from Chargebee, Maxio, Zuora and Stripe documented. We found no public information on SEPA direct-debit mandates, automatic retries of failed payments, or a documented path to move subscriptions and payment tokens out again, so it cannot reach the higher level. 1 5 8 11 12

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The Service-Business Owner

Dunning is the strongest part: reminder sequences timed against the due date, branching by customer or invoice amount, approval checkpoints, auto-stop when an invoice is paid or written off, and a full audit trail per reminder, plus a claimed 15% revenue recovered. Multiple payment processors including Stripe and GoCardless are supported so I am not tied to one provider. I found no public information on SEPA direct-debit mandates, automatic retries of failed payments, or a handover to a collection agency. 1 8 11 12

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The Tax Adviser

Dunning is well built: reminder sequences on a workflows canvas timed relative to the due date, branching by customer and invoice amount, automatic stop when an invoice is paid, voided or written off, optional human approval in Watchtower, and a full audit trail of every reminder. Collection runs across various payment processors — Stripe and GoCardless are named — plus bank-transfer destinations spanning IBAN, UK transfer, US ACH, US wire and Swedish Bankgiro, and a migration service off Chargebee, Maxio, Zuora and Stripe exists. We found no public information on SEPA direct-debit mandates, automatic retries of failed payments, card updaters, recovery reported per dunning step, or a handover to a collection agency. 1 5 8 11 12

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The Skeptic

The dunning engine is the best-documented thing here: reminder sequences timed around the due date, branching on customer or invoice total, auto-stop when paid, voided or written off, approval checkpoints, a full per-reminder audit trail, and payments collectable through Stripe from the customer portal with bank-transfer destinations named. The payment mechanics and the exit are the weak side — we found no public information on retries of failed payments, card updaters, SEPA direct-debit mandates or a collection-agency handover, and migration is documented only coming in off Stripe, Chargebee or Zuora, with nothing on taking subscriptions and payment tokens out. 1 5 8 11 12

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Revenue reporting & accounting handoff

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How this is scored

What finance gets out of billing: MRR, ARR, churn and cohort reporting, revenue recognition and deferred revenue, the export or sync to the accounting system and to DATEV, CRM and data-warehouse integrations, an API and webhooks, and a complete export of customer and subscription data.

0 — No reporting and no export beyond downloading individual invoices.

3 — A revenue overview and a CSV export of invoices, with no subscription metrics and no accounting integration.

5 — Subscription metrics (MRR, churn) on a dashboard, an export or sync to at least one named accounting tool, and a documented API with webhooks.

8 — Revenue recognition with deferred revenue schedules, a DATEV export or booking-ready journal for the ledger, native CRM and accounting integrations named, MRR movements explainable per customer, and a full data export documented.

10 — Billing is the system of record for revenue: recognition to IFRS 15 / ASC 606 stated, month-end close supported with reconciled reports, data-warehouse sync, audit trail of every financial event, and a complete export of customers, subscriptions and invoices that a successor system can import.

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The SaaS Founder

Revenue recognition to ASC 606 and IFRS 15 in a dedicated sub-ledger, deferred revenue and waterfall reports that reconcile to the journal report, journals exportable for direct import into Xero, QuickBooks, NetSuite or a generic GL, and native two-way connectors to CRMs, ERPs, accounting tools and data warehouses including Snowflake, BigQuery and Redshift — this is the handoff my accountant would actually accept, with manual adjustments tracked separately and a versioned REST API with webhooks alongside. What I found no public information on is MRR, ARR or churn metrics on a dashboard, and on a complete export of customers, subscriptions and invoices that a successor system could import. 1 8 13

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The Finance Lead

This is what I close the month on: recognition to IFRS 15 and ASC 606 in a dedicated sub-ledger, journal reports in formats designed for direct import into Xero, QuickBooks, NetSuite or a generic ledger — or pushed straight to Xero — one journal per customer, product and invoice, and the deferred revenue and waterfall reports stated to reconcile to the journal report. Manual adjustments carry their own audit trail marked Standalone, and two-way connectors reach Salesforce, HubSpot, Snowflake, BigQuery and Redshift alongside a REST API and webhooks. I found no public information on a complete export of customers, subscriptions and invoices that a successor system could import. 1 8 13

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The Billing Engineer

Recognition to ASC 606 and IFRS 15 in a dedicated sub-ledger, deferred-revenue and waterfall reports that reconcile to a journal report exportable for direct import into Xero, QuickBooks, NetSuite or a generic GL, direct posting to Xero, and named CRM, accounting and data-warehouse connectors. The API is versioned with a sandbox, and the webhooks come with HMAC signatures, 24-hour retries and explicit idempotency guidance — exactly what I want to wire against. We found no public information on MRR and churn dashboards or a complete, successor-importable export of customers and subscriptions. 1 8 13 14

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The Service-Business Owner

Revenue recognition to ASC 606 and IFRS 15 runs in a dedicated sub-ledger, with journal reports in formats for direct import into Xero, QuickBooks, NetSuite or a generic ledger, a straight push to Xero, and deferred revenue and waterfall reports that reconcile to the journals; Snowflake, BigQuery and Redshift connectors and a REST API with webhooks complete the handoff. A DATEV export for my tax adviser I found no public information on, and subscription metrics such as MRR and churn per customer are not documented either. 1 8 13

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The Tax Adviser

Recognition to ASC 606 and IFRS 15 runs in a dedicated sub-ledger, the journal report reconciles to the deferred revenue and waterfall reports, journals post straight to Xero with incremental repush, and export formats cover Xero, QuickBooks, NetSuite and a generic GL, with manual adjustments tracked as Standalone under a full audit trail. Native two-way connectors reach Salesforce and HubSpot plus the data warehouses Snowflake, BigQuery and Redshift, and a REST API with signed webhooks covers customers, invoices, billing schedules, credit notes and quotes. We found no public information on MRR or churn dashboards, or on a documented complete export of customers and subscriptions that a successor system could import. 1 8 13 14

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The Skeptic

Recognition to ASC 606 and IFRS 15 in a dedicated sub-ledger, journal reports in Xero, QuickBooks and NetSuite formats with a generic ledger option, deferred revenue and waterfall reports that reconcile to the journal, manual adjustments tracked with full audit trail, named CRM, accounting and data-warehouse connectors, and signed webhooks with retries and versioning. Two things keep it off the top: no published MRR or churn reporting, and no documented complete export of customers and subscriptions that a successor system could import — the report exports I see are CSVs with row limits. 1 8 13 14

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European sovereignty panel opinion

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How this is scored

Who the contracting entity and the parent company are, where customer, invoice and payment data are hosted, and who the subprocessors are (hosting, payment providers, tax engines, email delivery). Independently sourced by the sovereignty pipeline; billing data is personal and financial at once, so the whole chain counts, not only the database.

0 — Non-EU vendor and contracting entity, hosting unstated, subprocessors unnamed, and no data processing agreement offered.

3 — A privacy policy and a data processing agreement exist, but hosting location is unstated or non-EU and the subprocessors are not listed.

5 — EU hosting available and an EU contracting entity or EU representative, but parts of the chain (tax engine, email, analytics, support) run through non-EU providers without a stated safeguard.

8 — EU hosting on named infrastructure, EU contracting entity, subprocessors listed with their locations, a data processing agreement published, and security certifications (ISO 27001, SOC 2) stated.

10 — Sovereign end to end and evidenced: European ownership, entity, hosting and every subprocessor, data export and deletion documented, and certifications published with their scope rather than implied.

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The SaaS Founder

The contracting entity is Sequence HQ Ltd, incorporated in England and Wales under UK governing law — a UK rather than EU entity — with a published data processing agreement, a maintained subprocessor list, SOC 2 Type II stated, and transfers limited to the EU and US under standard contract clauses. But hosting location for billing data is not stated, subprocessor locations are not given, and an agreement to be acquired by Intuit has been signed; the captured pages also give different signals on ISO 27001, from listed on the homepage and pricing page to "shortly to be certified" in the privacy policy. 1 2 3 4

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The Finance Lead

The contracting entity is Sequence HQ Ltd, incorporated in England and Wales, with a published data processing agreement and a maintained subprocessor list, SOC 2 Type II stated, and processing limited to the EU and the US under standard contractual clauses — though the captured pages give different statuses for ISO 27001. I found no public information on the hosting infrastructure or the subprocessors' locations, and the company has signed an agreement to be acquired by Intuit. 1 2 3 4

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The Billing Engineer

The contracting entity is Sequence HQ Ltd, incorporated in England and Wales, with a data processing agreement, a subprocessor list said to be maintained and published, SCC-based transfers and SOC 2 stated; the captured pages give different figures for ISO 27001 (listed as included on the homepage and pricing pages, described as shortly to be certified in the privacy policy). Processing is described only as jurisdictions limited to the EU and US, with no named hosting infrastructure and no subprocessor locations shown. An agreement to be acquired by Intuit is signed but not stated as completed, which clouds the ownership picture. 1 2 3 4

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The Service-Business Owner

The contracting entity is Sequence HQ Ltd in England and Wales, with an agreement signed to be acquired by Intuit, and processing is stated to run in the EU and US under standard contractual clauses; a data processing agreement, a published subprocessor list and SOC 2 Type II certification exist. I found no public information on EU-only hosting for invoice and payment data. The captured pages give different statements on ISO 27001 — one says certification is still pending while the homepage and pricing page list it. 1 2 3 4

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The Tax Adviser

The contracting entity is Sequence HQ Ltd, incorporated in England and Wales under English law, with a data processing agreement published, SOC 2 Type II stated, and a maintained subprocessor list. Processing is described as limited to the EU and US with standard contract clauses as the transfer mechanism, so the chain is not purely European, and the captured pages give different figures on ISO 27001 — listed on the homepage and pricing page, while the privacy policy says certification is expected shortly. An agreement to be acquired by Intuit has been signed, and we found no public information on named hosting infrastructure or the locations of individual subprocessors. 1 2 3 4

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The Skeptic

A contracting entity incorporated in England and Wales under English law, a published data processing agreement, SOC 2 Type II, SCC-safeguarded transfers the privacy policy limits to the EU and US, and a statement that a subprocessor list is maintained. But hosting infrastructure is unnamed, the captured pages do not show which subprocessors or where they sit, processing extends to the US, and a signed acquisition by Intuit leaves the ownership question live; the pages also give different figures on ISO 27001 status — one lists the certification, another says it is "shortly" to come. 1 3 4

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Pricing transparency

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How this is scored

Whether a buyer can compute the real annual cost from public pages alone: platform fee, percentage of billed revenue or per-invoice fees, which modules (revenue recognition, e-invoicing, tax, extra gateways) cost extra, overage above a revenue band, setup and minimum term, and the merchant-of-record fee where it applies.

0 — No public prices at all; every customer is a sales call.

3 — A starting price or a free tier exists, but how cost scales with billed revenue, invoices or modules is unclear.

5 — Tiers are public with their main inclusions and revenue bands, but at least one commonly needed piece (e-invoicing, revenue recognition, extra gateways, overage) is unpriced or "on request".

8 — Every tier priced publicly with its scaling rule (revenue percentage, per invoice, per subscriber), overage and add-ons listed, minimum term and VAT treatment stated.

10 — Complete price computability: annual cost derivable for a given billed revenue, invoice volume and module set, with every add-on, setup, support and payment or merchant-of-record fee and the cancellation and data-return terms published.

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The SaaS Founder

Growth is public at $799 per month for startups under $1m in annual revenue with its inclusions, the quote builder and revenue recognition add-ons are priced from $499/month, and a free trial, 30-day payment terms and tax-exclusive fees are in the public pages. But Core and Scale both say "Bespoke pricing", and the platform fee is assessed on projected billed revenue and required features, so for a company at my revenue level I cannot compute the annual cost from public pages alone, and the custom reporting dashboard add-on carries no price. 2 4

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The Finance Lead

Growth is published at $799 per month for startups with less than $1m in annual revenue, add-ons start at $499 per month, and fees are exclusive of taxes with payment due within 30 days and late interest of 1% per month. But the Core and Scale tiers are 'Bespoke pricing', and the platform fee is assessed on projected billed revenue and the features required without published rates — so I cannot compute an annual cost for eight million euros of recurring revenue from these pages. 2 4

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The Billing Engineer

The Growth tier is public at $799 per month for startups with less than $1m in annual revenue, add-ons start at $499/month, and the terms state 30-day payment, nonrefundable fees, fees exclusive of all taxes and a 1% per month late charge. But both tiers above $1m in annual revenue are bespoke, assessed as a monthly platform fee from projected billed revenue, so a buyer above that line cannot compute cost from public pages. We found no public information on minimum term or payment-processing fees. 2 4

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The Service-Business Owner

The Growth tier is public at "$799 per month" for startups with "<$1m in annual revenue", a free trial exists, add-ons for the quote builder and revenue recognition are listed "starting at $499/month", and fees are stated exclusive of all taxes. The Core and Scale tiers are "Bespoke pricing", and the platform fee is only described as assessed on projected billed revenue and required features, so I cannot compute my annual cost from the public pages. 2 4

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The Tax Adviser

Growth is public at $799 per month for startups with <$1m in annual revenue, the quote builder and revenue recognition add-ons start at $499/month, and the terms state fees are exclusive of taxes, due within 30 days, with 1% per month late interest. But Core for companies with $1-10m in annual revenue and Scale for $10m+ are both 'Bespoke pricing', and the monthly platform fee is assessed on projected billed revenue and the features required, so a buyer beyond the entry tier cannot compute the annual cost from public pages alone. 2 4

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The Skeptic

One tier is priced — "Growth $799 per month For Startups with <$1m in annual revenue" — add-ons are "starting at $499/month", and the terms state 30-day, nonrefundable, tax-exclusive payment with a 1% monthly late fee. Above $1m in revenue, both remaining tiers are "Bespoke pricing" assessed as a monthly platform fee on projected billed revenue and required features with no published rate, so a buyer cannot compute the real annual cost without a sales conversation. 2 4

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European sovereignty — proven facts

1 of 4 dimensions proven

Built only from facts shown on the vendor's own pages. A dimension we could not prove is left open, not scored as zero.

Ownership Foreign-controlled ⚠ unverified 0/2 pts 1 Report an error
Data residency Not determined — uncited Report an error
Subprocessors Not determined — uncited Report an error

Questions about Sequence

Is Sequence European?

Yes, though not from the EU. whats-best.ai classifies Sequence as UK / wider Europe.

Where does Sequence store data?

Not stated on the vendor’s pages as of 26 Oct 2026.

Does Sequence have a free plan?

Not stated on the vendor’s pages as of 26 Oct 2026.

What are the best alternatives to Sequence?

As of 28 Oct 2026, the panel rates Chargebee (3.5/5), Younium (3.5/5) and Stripe Billing (3.5/5) highest among the other 12 Billing & Invoicing products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is Younium (EU-Made). Ratings are the AI panel’s opinion, formed from public evidence: how scores are made. The full list, with European products first: Sequence alternatives.

Where this could be wrong

What we left out

A claim that does not survive our checks costs us the claim, not the page. This is what was taken off this one.

Sources (14)

The pages every claim on this page was read from — each one checked, dated, and kept verifiable.

  1. 1 Vendor homepage www.sequencehq.com Checked 26 Oct 2026 Details →
  2. 2 Pricing page www.sequencehq.com Checked 26 Oct 2026 Details →
  3. 3 Privacy policy docs.sequencehq.com Checked 26 Oct 2026 Details →
  4. 4 Terms of service docs.sequencehq.com Checked 26 Oct 2026 Details →
  5. 5 Plans, pricing models & subscription lifecycle — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →
  6. 6 Plans, pricing models & subscription lifecycle — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →
  7. 7 Invoices & e-invoicing compliance — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →
  8. 8 Invoices & e-invoicing compliance — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →
  9. 9 Cross-border VAT & tax handling — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →
  10. 10 Cross-border VAT & tax handling — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →
  11. 11 Payment collection, dunning & portability — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →
  12. 12 Payment collection, dunning & portability — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →
  13. 13 Revenue reporting & accounting handoff — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →
  14. 14 Revenue reporting & accounting handoff — found from sitemap docs.sequencehq.com Checked 26 Oct 2026 Details →