HMRC lost my £3,709 Self Assessment payment, sent me to debt collectors, so I paid it again — how do I get the duplicate back?
Looking for advice from anyone who’s dealt with HMRC payment tracing or duplicate payments.
Timeline:
**• May 2026** – Received my Self Assessment bill: £3,709.10 due. Paid it immediately using the QR code from my login portal ).
**• A few weeks later** – Got a follow-up letter claiming late payment + interest. Assumed it was a system lag and ignored it.
**• \~3 months later** – Received a formal statement saying the amount is still outstanding, now with penalties added, and that it’s been passed to a **debt collection agency**.
**• This week** – Checked the HMRC portal, it still showed the amount as overdue. Panicked and paid the £3,709.10 again to stop the debt collector action.
The problem:
**•** My bank statement confirms the **first payment went out in May**.
**•** The HMRC portal shows **no record of that May payment** at all — like it vanished.
**•** I’ve now paid the same bill **twice**.
What I need help with:
**1.** How do I get HMRC to trace the original May payment (I have bank proof it left my account)?
**2.** What’s the process for reclaiming the duplicate payment?
**3.** How do I get the late payment interest/penalties removed, given the original payment was on time?
**4.** How do I stop or reverse the debt collector referral so it doesn’t affect my credit file?
**5.** Has anyone had QR code payments specifically go missing/unallocated at HMRC? Wondering if this is a known issue.
Any advice on the right HMRC department to call, what reference numbers/evidence to have ready, or how long this typically takes to resolve would be hugely appreciated.