PennyCompass

Ireland Mortgage Calculator

Free Ireland mortgage calculator. Monthly repayments and total interest on a home loan at a given rate and term.

Published

Home loan repayments and total interest.

Monthly repayment

Total interest

Total repaid

Your breakdown

Updates live as you type
ItemValue

Worked example

Take a 320,000 euro mortgage at a 4% annual rate over a 30 year term. The monthly rate is 4% divided by 12, and there are 360 monthly payments. Running these through the standard repayment formula gives a monthly payment of about 1,527.73 euro. Over the full 30 years you repay roughly 549,982 euro in total, of which 320,000 is the original loan and about 229,982 euro is interest. In other words the interest alone is close to 72% of the amount borrowed, which is why the term and rate matter so much. Shortening the term or overpaying early cuts the interest sharply.

How it is calculated

A repayment mortgage uses the standard annuity formula, where the monthly payment is the loan multiplied by the monthly rate and a compounding factor over the number of months. Each payment covers the interest accrued that month first, with the rest reducing the balance, so early payments are mostly interest and later ones mostly capital. The monthly rate is the annual rate divided by 12, and the number of payments is the term in years times 12. Total interest is simply the sum of all payments less the original loan. In Ireland the Central Bank mortgage measures cap most lending at 3.5 to 4 times income and 90% loan to value for first time buyers, so affordability often sets the loan size before the rate does. Always compare the APRC rather than the headline rate, since it folds in fees.

Frequently asked questions

What mortgage rates apply in Ireland?
Irish lenders offer variable and fixed rates, with fixed terms commonly one to five years and some longer green mortgage rates. The Central Bank mortgage measures cap most lending at 3.5 to 4 times income and 90% loan-to-value for first-time buyers. Compare the APRC, not just the headline rate, and factor in any cashback offers when choosing a product.
Is mortgage interest tax-relievable in Ireland?
Mortgage Interest Relief was phased out for most homeowners from 2020 onward under Revenue rules. A temporary relief at 20% was reintroduced in Budget 2024 for owner-occupiers whose outstanding balance was between 80,000 and 500,000 euro at the end of 2022, subject to a 1,250 euro annual cap for a single person and 2,500 euro for a couple. Check Revenue.ie for current eligibility and the TRS claim process, as the relief is time-limited.
What is stamp duty on a residential purchase in Ireland?
Stamp duty on residential property in Ireland is 1% on the first 1,000,000 euro of the purchase price and 2% on the balance above that, under Schedule 1 of the Stamp Duties Consolidation Act 1999 as amended. First-time buyers do not receive an exemption from stamp duty, though they may benefit from the Help to Buy scheme, which provides a refund of income tax and DIRT paid over the previous four years, up to 30,000 euro or 10% of the purchase price, whichever is lower.
How does the Central Bank loan-to-value limit work?
Under the Central Bank of Ireland mortgage measures, first-time buyers can borrow up to 90% of the property value, meaning a minimum 10% deposit is required. Second and subsequent buyers are limited to 80% loan-to-value. Lenders can allow a small proportion of new lending above these limits each calendar year under an exceptions allowance, but exceptions are not guaranteed. The income-based limit of 4 times gross income applies to first-time buyers; secondary buyers face a 3.5 times limit. Both limits apply simultaneously so the binding one will be whichever results in the smaller loan.

Related calculators

Sources

  1. Revenue — VAT, Stamp Duty and Local Property Tax, Revenue (Office of the Revenue Commissioners), Ireland
Embed this calculator on your site (free)

Paste this code into your page. The calculator stays up to date automatically and links back to PennyCompass.

Calculator by PennyCompass