Rogue refunds of Class 2 NI due to HMRC failure
HMRC has incorrectly refunded Class 2 NI to some self-employed taxpayers. What should you do if you get an unexpected payment?

Self-employed taxpayers with profits below £6,725 can voluntarily pay Class 2 NI to maintain their entitlement to certain benefits, most importantly, it adds a year to their state pension entitlement record. HMRC appears to have failed to meet the payment deadline for voluntary Class 2 NI for the 2022/23 tax year. As a result, in some cases, its systems have automatically rejected the payment and returned up to £163.80 to the taxpayer. Unfortunately, HMRC is not yet proactively contacting taxpayers to resolve the issue, which means unless affected taxpayers take corrective action, they may lose their entitlement to NI-related benefits for 2022/23.
The Low Incomes Tax Reform Group is recommending that those who have received a refund to call HMRC’s National Insurance helpline on 0300 200 3500 to repay the NI. It's not possible to simply pay the amount to the self-assessment account.
Related Topics
-
HMRC and Companies House to scrap free filing services
From April 2026 companies won’t be able to file their tax returns and accounts using the HMRC and Companies House free-to-use service. What steps should companies take ahead of the deadline?
-
Annual accounting: how are interest and late payment penalties calculated?
If you use the annual accounting scheme, you will submit one return each year instead of four or twelve. What are the potential traps if you don’t meet the scheme conditions?
-
Is basis period reform really over and done with?
You heaved a sigh of relief after submitting your 2023/24 self-assessment tax return, especially as it meant the fiddly basis period calculations were behind you. But why might it be to your advantage to revisit them?