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The mapTax authorityReturns, Payments & Debt
Payments, refunds & debt collection
partly covered · 12 open projects
Payment channels, taxpayer accounts, refunds, arrears, payment plans and enforcement.
The honest read
HMRC's penalties, Time to Pay, payments, repayment-tracker and refund services and its Self Assessment accounts and financial-transactions APIs are open: one authority's whole payments stack, tied to its platform. A taxpayer ledger or an interest and penalty engine another authority could reuse: nothing open.
A draft: not yet reviewed by a tax specialist.
Start with
The account API shows what a taxpayer ledger holds; the penalties service shows the rules applied to it.
Its 12 projects
| Project | Kind | Jurisdiction | Last update | Stars |
|---|---|---|---|---|
| HMRC Self Assessment accounts APIAPI for a Self Assessment account: balance (overdue, payable, pending), charges, payments and allocations. | APIs | UK | Sep 2026 | — |
| HMRC penalties serviceHMRC's late-submission and late-payment penalty service: backend, VAT and income tax frontends, appeals. | APIs | UK | Jul 2026 | — |
| HMRC Enhanced Self Serve Time To PayHMRC's payment-plan journey for tax debts: eligibility check, affordability and plan selection, and backend. | APIs | UK | Sep 2026 | — |
| HMRC EU VAT refundsHMRC service for EU VAT refund claims, started in 2026. | APIs | UK | Oct 2026 | — |
| HMRC financial transactions (VAT)Service returning MTD VAT liabilities, payments and late-payment penalty details, with direct debit checks. | APIs | UK | Jul 2026 | — |
| HMRC individuals charges APIAPI to view and manage individuals' pension and high income child benefit charges. | APIs | UK | Oct 2026 | — |
| HMRC payments servicesHMRC's payment services: processor, orchestrator, card, mobile and telephone payments, national direct debit. | APIs | UK | Sep 2026 | — |
| HMRC Self Assessment refundFrontend for claiming a Self Assessment refund. | APIs | UK | Sep 2026 | — |
| HMRC third-party payments APIExternal API that lets third-party software initiate a payment to HMRC. | APIs | UK | Jun 2026 | — |
| HMRC Time to PayHMRC's Time to Pay services: the arrangement backend, the self-service frontend, proxy API and taxpayer data. | APIs | UK | Mar 2026 | — |
| HMRC VAT repayment trackerService where businesses track the progress of a VAT repayment: frontend and backend. | APIs | UK | Sep 2026 | — |
| HMRC View and change income tax (MTD)Frontend where MTD income tax customers view calculations, charges and payments and make changes. | APIs | UK | Oct 2026 | — |
Every project here is maintained and serves a tax authority. See the team's projects in the list.