Tax Returns Not Being Processed Due To HMRC SEISS Software Error

HMRC are advising customers to check the pre-populated SEISS entry on their Income Tax Self-Assessment Return and where necessary, delete the pre-populated figure and manually enter the correct amount, a spokesperson advised “our system will not process a return if the SEISS grant entry does not match our record of the amount paid.”

AccountingWeb reported that they’ve had several reports about a bug in HMRC’s Self-Assessment application programming interface (API) that is corrupting figures entered on 2020-21 returns for SEISS grants.

The first report arrived from an AccountingWEB member, who reported that a claim for £1,000,000 had appeared on one of their clients’ tax returns! With other reports confirming this was not an isolated incident.

The HMRC spokesperson continued: “we are aware of a problem with the way that SEISS grants received in the 2020/21 tax year are being presented on the individual income API. Figures are being presented in pence rather than pounds. This is impacting individuals who use commercial software only.

Why not use our bespoke, affordable tax return service? Compliance and peace of mind. With just over 5 months until the deadline, you can rest easy with our award winning, experienced team. Watch our short video explaining our service below.


This product has been added to your cart