As of 13 August 2026, AI can only partly amend a submitted FPS.

What to actually do

1. Hand it to a person

   The route this page recommends

   Someone with a licence or accountable authority has to sign this before it counts.

2. Use a tool built for this

   Second choice

3. Do it yourself

   The distant third

   A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

   How to actually do it

   1. Open your payroll software and the submitted FPS record, then note the affected payroll period, submission status, reference, and error without copying unnecessary employee personal data.
   2. Export the affected payroll report and gather the payslip, payroll journal, payment date, PAYE and National Insurance totals, and any record showing what the figures should have been.
   3. Open GOV.UK or HMRC guidance on correcting payroll reports and your payroll software's instructions for correcting a submitted FPS.
   4. Paste the redacted facts, figures, and guidance into the prompt, including the software name and version, and ask AI to separate an FPS correction from a later payroll adjustment.
   5. Compare AI's proposed route and every figure with the submitted FPS, payroll journal, payslips, and the official guidance, and remove any step that is not supported by those sources.
   6. Ask a payroll accountant to check the correction if the error affects tax, National Insurance, statutory payments, multiple employees, or the reporting period.
   7. Make the correction in your payroll software, check the generated submission summary against the approved figures, and submit it through the software only when the route is confirmed.
   8. Save the corrected report, submission confirmation, supporting calculations, and the reason for the correction with your payroll records.

   Prompt

   You are helping me investigate a correction to a submitted UK Full Payment Submission, or FPS. This is not professional advice. Do not guess, invent HMRC rules, or tell me to submit anything unless the relevant official guidance supports it.
   
   Use only the information I provide and current GOV.UK or HMRC guidance if available. First, identify whether the issue is a correction to an earlier FPS, a later payroll adjustment, or something that needs a payroll accountant. Then produce:
   
   1. The facts and figures that need checking against the payroll records.
   2. The likely correction route in my payroll software, without assuming the software or tax period.
   3. A step-by-step checklist for preparing and submitting the correction.
   4. The exact points I must verify against GOV.UK, HMRC, and my payroll software documentation.
   5. A short list of reasons to stop and ask a UK payroll accountant before submitting.
   
   Do not calculate PAYE, National Insurance, statutory payments, or any other payroll amount unless I provide the rules and all required figures. Mark every missing fact as MISSING. Keep employee information minimal and redact names, National Insurance numbers, addresses, bank details, and any other unnecessary personal data.
   
   My payroll software: [software name and version]
   Payroll period affected: [period]
   Original FPS submission status and reference, if available: [details]
   What is wrong: [description]
   Original payroll figures: [figures]
   Correct figures: [figures]
   Reason the correction is needed: [reason]
   Relevant HMRC or software guidance: [links or pasted text]

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.