This page looks at what to do if you have paid too much tax on your employment or pension income.

On this page, we explain how to claim a refund of tax paid on savings income. This information is for people who do not have to fill in a tax return. If you normally complete a tax return, see our page Self assessment tax refunds.

Self Assessment payments usually become due on 31 January each year. Sometimes payments are also due on 31 July too. Here we explain which Self Assessment tax payments are due on each of these days. 

If, after you have filed your tax return, you become aware that an entry is incorrect, you can amend that return if you are in time to do so. Also, if you have used provisional figures when you completed a tax return, you will need to amend your tax return when the actual information becomes ...

If you no longer need to file Self Assessment tax returns, you should tell HMRC.

If you do not have all the information you need to be able to complete your tax return accurately, you can use a provisional or estimated figure. If you do this, it means you do not need to delay submitting your tax return to HMRC and risk getting a late filing penalty.