🚧 These credentials only work in the staging environment: https://staging.adfin.com
You can use the following card details to make test payments for invoices and payment requests.
| Where to use | Market | Test Card | Expiry Date | CVV |
|---|---|---|---|---|
| Biller created before September 2025 | GB | 4444 3333 2222 1111 | 03/30 | 737 |
| Biller created after September 2025 | GB | 4000 0566 5566 5556 | 03/30 | 737 |
| Biller created in Guernsey | GG | 4444 3333 2222 1111 | 03/30 | 737 |
Adfin handles the E2E card journey, including capturing card authorisation failures. We have included comprehensive testing documentation for triggering your own card failures.
To trigger a failed CVC check, include a CVC (any three-digit number). To trigger a failed postal code check, include any valid postal code. If you omit these fields, the check is skipped so those checks, so they can’t fail.
| Card numbers | Number | Details |
|---|---|---|
| 3DS check | 4000 0084 0560 0003 | 3DS authentication when using this test card |
| CVC check fails | 4000 0000 0000 0101 | If you provide a CVC number, the CVC check fails |
| Always blocked | 4100 0000 0000 0019 | Card number is always blocked |
Use these bank details to set up a test Direct Debit mandate.
| Adfin Client | Market | Name | Bank Account | Sort Code |
|---|---|---|---|---|
| Biller created before September 2025 | GB | David Archer | 40308669 | 56-00-36 |
| Biller created after September 2025 | GB | Jane Doe | 00012345 | 10-88-00 |
| Biller created in Guernsey | GG | David Archer | 40308669 | 56-00-36 |
Please note that real payments will be processed if you select this payment method. UK bank account required.