15/06/2026
📩 Received a "Correction of Obvious Errors" Letter from HMRC?
If you've recently received a letter from HMRC stating that they've corrected your tax return due to an "obvious error or omission", don't ignore it.
These letters are becoming increasingly common, particularly for individuals working under the Construction Industry Scheme (CIS), where HMRC may challenge CIS deductions, income figures, or claims made on a tax return.
It's important to check the amendment carefully. HMRC can get things wrong, and you may have the right to challenge the correction if you believe it is incorrect.
If you've received one of these letters and aren't sure how to respond, contact us for advice before taking any action.