Think you’ve overpaid tax? Use the HMRC Tax Checker
Thursday, September 3rd, 2009Think you’ve overpaid tax and are due a repayment? You can use this handy HMRC checker to find out…
There are a few things you need to know before you start to use the checker:
- The checker works it out in whole pounds only, so you don’t need to enter any pence. The rules are:
- round-down to the nearest pound: earnings, interest and Gift Aid donations
- round-up to the nearest pound: tax paid
- If you have more than one job, the calculate for more than one job link will total the amounts and carry them over to the relevant fields.

- The tax checker doesn’t total the bank or building society fields, so if you have more than one bank or building society account you’ll need to calculate the total amount of interest you’ve received. You’ll also need to add up all of the Gift Aid donations you’ve made.
- The following aren’t taxable so there’s no need to include them: student loans, ISAs (Individual Savings Account), gifts from parents or family, Child Tax Credit, Working Tax Credit, National Savings (Ordinary Account) interest up to £70.
Please note that this Tax Checker does not take into account, Married Couple’s Allowance, Other types of income, such as dividends and trusts, People aged 65 and over or Children’s Tax Credit.
This checker will only provide the right result if you enter all your details correctly.

Although interest will continue to be payable on taxes where it applies, where the tax is paid late, no additional late payment surcharges will be applied on payments made in an accordance with your arrangement.