Self assessment ― amendments and corrections

Produced by a Tolley Personal Tax expert

Personal Tax

Guidance

Once a self assessment tax return has been filed, both HMRC and the taxpayer (or the agent) has the right to make changes to the return. There are different time limits depending on whether it is a correction by HMRC or an amendment made by the taxpayer.

This framework has been the subject of various calls for evidence and consultations since 2018 as HMRC seeks to align the rules across taxes. See the consultation published in October 2024 entitled ‘The Tax Administration Framework Review ― new ways to tackle non-compliance’.

Correction of the tax return by HMRC

HMRC has the right to amend the tax return within nine months of the date of receipt (ie the date the return was filed rather than the due date for filing) without opening an enquiry. Usually, HMRC does this to eliminate or to reverse any obvious errors or mistakes within the return. These are usually arithmetical errors, although HMRC can reverse any technical mistakes made by the taxpayer in completing the return.

HMRC will notify the taxpayer of

Continue reading the full document

To gain access to additional expert tax guidance, workflow tools, generative tax AI, and tax research, register for a free trial of Tolley+™

TAKE A FREE TRIAL NOW

Popular Articles

Personal Tax

Payment of tax due under self assessment

Payment of tax due under self assessmentNormal due dateIndividuals are usually required to pay any outstanding income tax, Class 2 and Class 4 national insurance, and capital gains tax due for the tax year by 31 January following the end of the tax year (ie 31 January 2025 for the 2023/24 tax year).

14 Jul 2020 12:52 | Produced by Tolley Read more

Employment Tax

Subsistence expenses

Subsistence expensesIntroductionSubsistence is the amount incurred as a consequence of business travel. Typically it relates to accommodation and meal costs incurred. These amounts are allowed because they are associated with the necessary travel which is not to a permanent workplace. See the Travel

14 Jul 2020 13:43 | Produced by Tolley in association with Philip Rutherford Read more

Owner-Managed Businesses

First year allowances

First year allowancesFirst year allowances (FYAs) are available on the following items:•first-year relief on qualifying new main rate plant and machinery (at 100%, which is described by HMRC as ‘full expensing’) and special rate assets (at 50%) from 1 April 2023 (companies only). These FYAs were

14 Jul 2020 11:41 | Produced by Tolley Read more

UU��ֱ��