Historical Rental Finance Tax Credit

Hello, I have been submitting my tax return for the last few years without inputting the finance cost of my rental income. I understand you get a 20% tax credit for the mortgage interest, classified as finance costs. How do I make a claim for the last tax year and tax years previous to that? Thank you

Hi ,
 

Thank you for your question. For information about amending tax returns and making claims outside returns, including claims for Overpayment Relief, please visit: Self Assessment tax returns   . Thank you .

Thank you. How many years will I be able to go back and adjust this for?

Hi,
You can go back 4 years. For example, to claim for 2021 to 2022, the claim must be received on or before 5 April 2026.
Thank you.