Am I entitled to claim mortgage tax relief?

Yes. Tax relief on the interest you paid on your mortgage at the standard rate is currently 20%.

Mortgages qualify for such relief if they are used to purchase, develop, improve or repair your sole or main residence in the state. The tax relief is provided at source - by your lender, usually in form of reduced mortgage payment or a credit to your funding account. You don't need to claim your tax relief in the annual tax return. It's in your interest to apply for the relief as soon as possible using your PPS number and mortgage account number.

If you switch mortgage lender, take out a top-up loan or re-mortgage your home you may have to re-apply to Revenue for your tax relief. Mortgage interest tax relief is subject to an upper limit, depending on Revenue rules and your situation.