How to use unclaimed overpaid tax to pay this year's tax bill

I overpaid for 20/21 and have never reclaimed this back. I can this payment on my account. I need to make a payment for 21/22 and want to use the unclaimed payment to do this - but can't see a way of doing this. Will you automatically see that the overpayment from 20/21 will cover the payment for 21/22 - if so, how can I see confirmation of this? Will my account just y that there is no tax to pay?

Yes. This is normally calculated automatically for your account after you submit self assessment return. As you already have unclaimed money in your SA account then new tax will be adjusted. Generally takes few days to reflect on the current position of account. You will see "There is nothing to pay" later.

Hi Gazelle,

The amount overpaid will automatically be credit against an amount due.

Thank you.