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- If you realise you made a mistake, you can correct your tax return for up to a year after the filing deadline via the HMRC online portal or via your software provider. After this timeframe, you'll need to write to HMRC to explain the circumstances and request a change.
www.which.co.uk/money/tax/income-tax/self-assessment-tax-return/late-tax-returns-and-penalties-for-mistakes-aM1Ts5k5gj1u
People also ask
What if I made a mistake on my 2022/2023 tax return?
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When can I correct an error on a filed tax return?
Can I change my tax return if I made a mistake?
What happens if I make a mistake on my tax return?
What happens if I miss a tax return?
Fill in a PFF2 form if: you made a mistake; your circumstances change, such as your marital status or you have another child; You can use the form for the: 2024 to 2025 academic year
- Updating your tax return
- Write to HMRC
- Changes to your bill
Example
For the 2021 to 2022 tax year, you’ll usually need to change your return by 31 January 2024. If you miss the deadline or if you need to make a change to a return from an earlier tax year you’ll need to write to HMRC.
Online tax returns
You must wait 3 days (72 hours) after filing before updating your return. Sign in using your Government Gateway user ID and password. From ‘Your tax account’, choose ’Self Assessment account’. Choose ‘More Self Assessment details’. Choose ‘At a glance’ from the left-hand menu. Choose ‘Tax return options’. Choose the tax year for the return you want to amend. Go into the tax return, make the corrections and file it again.
Paper tax returns
For the main Self Assessment tax return, call HMRC and request form SA100. You can download all other forms and supplementary pages. You then need to send HMRC the corrected pages. Write ‘amendment’ on each page, and include your name and Unique Taxpayer Reference (UTR) - this is on previous tax returns or letters from HMRC. Check your Self Assessment paperwork for the address. If you cannot find this, send your corrections to the address for general Self Assessment enquiries.
You must write to HMRC if you’ve missed the deadline to make changes or you need to make a change to another tax year.
You’ll also need to write HMRC a letter to:
•claim overpayment relief
•report income you did not include in your tax return
You’ll see your amended bill straight away if you updated your tax return online. Within 3 days, your statement will also show:
•the difference from the old one, so you can see whether you owe more or less tax
•any interest
To view this, sign in using your Government Gateway user ID and password and choose ‘View statements’ from the left-hand menu.
If you made a mistake on your 2023/2024 tax return after you filed it to HMRC, for example, your deadline for correcting any mistakes would be 31st January 2026, one year after the online filing deadline of 31st January 2025.
How you report changes depends on whether you: study full-time. study part-time. receive tuition fee-only funding. There’s a different process if you’ve changed your name or marital status. If...
Oct 10, 2024 · If you’ve made a big mistake on your ballot — too big to fix — your best plan of action may be to focus on getting a new one. You can: Call your county elections office and ask them to cancel that ballot and issue a new one to you
Oct 18, 2024 · What happens if you're late filing your tax return? If you miss the deadline to file your self-assessment tax return, HMRC could automatically charge you £100. HMRC must have received your tax return by 31 October 2024 for paper forms, and by midnight on 31 January 2025 for online returns.
Jan 18, 2024 · Missing the filing and payment deadline. This is the big one if you want to avoid fines. If you file your tax return just one day late, you'll incur a £100 penalty immediately. After three months, if you still haven't filed it, you'll pay an additional £10 per day for up to 90 days.
