The Mortgage Interest Tax Credit gives eligible homeowners a tax credit based on the increase in their mortgage interest payments since 2022. In 2026 the maximum credit is €625 per property — reduced from €1,250 in previous years as the relief winds down.
6 min readReviewed against official Irish guidanceLast updated: May 2026
Quick answer
The Mortgage Interest Tax Credit is 20% of the increase in your mortgage interest in 2026 compared to 2022. The maximum credit for 2026 is €625 per property. You claim it through myAccount from early 2027. Your mortgage balance must have been between €80,000 and €500,000 on 31 December 2022.
How it works
This credit is based entirely on how much more interest you paid on your mortgage in a given year compared to what you paid in 2022 — the year before interest rates started rising sharply. The government introduced it in Budget 2024 to help homeowners who saw their mortgage costs increase significantly.
The credit is calculated at 20% (standard rate) of the increase in interest, up to a cap.
The 2026 credit is claimed in 2027 — after you file your tax return for 2026. If you have not yet claimed for 2023 or 2024, you can still do so now through myAccount.
Who qualifies?
Condition
Requirement
Mortgage balance on 31 Dec 2022
Between €80,000 and €500,000
Lender type
Must be with a qualifying lender (Central Bank regulated credit institution)
Property use
Your principal private residence in Ireland
Interest increase
You must have paid more interest in the claim year than in 2022
If your mortgage balance was under €80,000 in December 2022, you do not qualify — the relief is targeted at people who still had a significant mortgage when rates rose. If your balance was over €500,000, you also do not qualify.
How to claim
PAYE employees claim through myAccount on Revenue.ie. Under tax credits, select "Mortgage Interest Tax Credit" and enter your mortgage interest details for the relevant year. Revenue will calculate the credit and issue a refund or apply it to your tax bill.
You will need your mortgage interest statement from your lender, which is typically issued in January or February for the previous year.
Common confusion
No. The old mortgage interest relief was phased out by 2020. The current Mortgage Interest Tax Credit is a different and more limited scheme introduced in Budget 2024. It is based specifically on the increase in interest since 2022 and is time-limited to 2023–2026.
No. The credit only applies to the increase above what you paid in 2022. If your 2022 interest was €3,000 and your 2025 interest was €5,000, the relief applies to the €2,000 difference (20% = €400 credit). If your interest did not increase since 2022, there is no credit.