Mortgage Overpayment Calculator

We offer you the flexibility to overpay your mortgage which means you can save interest and clear your loan quickly

My Mortgage Account  Mortgage Self Service

Overpay your mortgage and save interest

You can make overpayments, either regularly or as lump sums, when you find yourself with extra cash. This will reduce your capital balance and you pay less interest. It may even reduce your term.1

  • You can make regular or lump sum overpayments of any amount to a variable rate mortgage.
  • If you are on a fixed rate you can overpay up to 10% of your normal monthly repayment (or €65, whichever is greater), without incurring a fee.
  • Overpaying your mortgage may result in your mortgage being be paid off early, but the maturity date on your mortgage doesn’t change.

Even a small overpayment can make a difference to your mortgage.

Mortgage Overpayment Calculator

Use our overpayment calculator to see what savings you could make on your mortgage with us.

Please note that this calculator gives you indicative results only. This calculator assumes all variables remain constant for the duration of the loan. However, rates can change which means the actual impact of a mortgage overpayment cannot be guaranteed.

For fixed rates the maximum monthly overpayment is 10% of the monthly mortgage repayment, or €65, whichever is greater.

Any lump sum term reductions and interest savings noted are based on the lump sum payment been made and the repayment remaining at its current level.

New lending rates not included in our calculators are our High Value Mortgage fixed interest rate. (Terms and conditions apply. Cashback is not available with the High Value Mortgage fixed interest rate or our standard variable interest rate.)

1Please note that you can cancel your regular overpayments at any time. Overpayments made are not refundable*subject to terms & condition.
Apply online to apply or remove an overpayment to your mortgage
Mortgage Self Service

Help & Support

Need help and support? Read our frequently asked questions to find an answer.

Information & Legal notices

The lender is Bank of Ireland Mortgages. Lending criteria and terms and conditions apply. A typical mortgage to buy your home of €100,000 over 20 years with 240 monthly instalments costs €613.16 per month at 4.15% variable (Annual Percentage Rate of Charge (APRC) 4.3%). APRC includes €150 valuation fee and mortgage charge of €175 paid to the Property Registration Authority. The total amount you pay is €147,482.50. We require property and life insurance. You mortgage your home to secure the loan. Maximum loan is generally 3.5 times gross annual income (4 times gross annual income for first time buyers) and 90% of the property value. A 1% interest rate rise would increase monthly repayments by €53.89 per month. The cost of your monthly repayments may increase – if you do not keep up your repayments you may lose your home. Available to over 18s only. APRC calculations are based on the cost per month on a €100,000 mortgage over 20 years.

Warning: The cost of your monthly repayments may increase.
Warning: If you do not keep up your repayments you may lose your home.
Warning: You may have to pay charges if you pay off a fixed–rate loan early.
Warning: If you do not meet the repayments on your loan, your account will go into arrears. This may affect your credit rating, which may limit your ability to access credit, a hire- purchase agreement, a consumer-hire agreement or a BNPL agreement in the future.

Bank of Ireland Mortgage Bank u.c. trading as Bank of Ireland Mortgages is regulated by the Central Bank of Ireland.

Contact us

Speak with one of our lending specialists. Open 9am – 5pm Monday to Friday