Irish Calculators Updated for 2026 Estimate only

Mortgage Calculator Ireland

Free Irish mortgage calculator for monthly repayments, total interest, repayment schedule, upfront costs, and overpayment scenarios.

Updated for 2026 Sources: Revenue.ie · Central Bank of Ireland guidance Estimate only · not financial advice
Mortgage Repayment Calculator Ireland Ireland · Monthly Estimate

Property & Deposit

Synced automatically with deposit amount.
Calculated as property price minus deposit.

Loan Terms

Used only for simple affordability or budgeting guidance.

Mortgage Repayment Estimate

Use this mortgage calculator Ireland to estimate monthly repayments, total interest, upfront costs, and overpayment scenarios.

How this mortgage repayment estimate is calculated

The calculator estimates repayment mortgage costs from the loan amount, interest rate, mortgage term, and any optional overpayments.

  1. The mortgage amount is estimated from the property price minus the deposit.
  2. The selected interest rate and term are used to calculate an estimated monthly repayment.
  3. Total repayable and total interest are estimated over the full term.
  4. Optional overpayments are modelled separately to show possible interest and term savings.

Source note: Standard repayment mortgage formula and Irish mortgage planning assumptions. This is an estimate only and not financial advice.

About This Mortgage Calculator Ireland

This mortgage calculator Ireland helps you estimate monthly mortgage repayments, total interest, total repayable amount, upfront buying costs, and optional overpayment scenarios before you speak to a lender or broker.

Enter the property price, deposit, interest rate, and mortgage term to calculate the estimated monthly repayment for a repayment mortgage. The calculator also shows the mortgage amount, loan-to-value ratio, deposit percentage, estimated stamp duty, and a simple rate stress test.

The Loan-to-Value (LTV) ratio is the mortgage amount expressed as a percentage of the property value. For principal home mortgages, first-time buyers and second/subsequent buyers generally work around a 90 % maximum LTV, while buy-to-let purchases generally use a lower LTV limit.

The results are estimates only. Actual mortgage approval, repayments, rates, fees, and conditions depend on your lender, income, expenses, credit profile, mortgage type, and current Central Bank and lender rules.

How This Calculator Works

1
Enter the property price, deposit, annual interest rate, and mortgage term.
2
The mortgage calculator Ireland works out the loan amount after your deposit.
3
It applies a standard repayment mortgage formula to estimate the monthly repayment, total repayable amount, and total interest.
4
It also shows estimated upfront costs, repayment schedule, rate comparison, overpayment scenarios, and simple Irish LTV/LTI planning guidance.

Who This Calculator Is For

First-time buyers estimating monthly mortgage repayments before applying for approval in principle.
Home movers comparing different property prices, deposits, interest rates, and mortgage terms.
Mortgage switchers checking how a new rate could change their monthly repayments.
Buyers comparing repayments on a 200k, 300k, 400k, or 500k mortgage in Ireland.
Anyone building a home-buying budget alongside stamp duty, Help to Buy, and First Home Scheme estimates.

Frequently Asked Questions

How do I calculate mortgage repayments in Ireland?
Enter the property price, deposit, mortgage term, and interest rate. The calculator estimates the mortgage amount, monthly repayment, total repayable amount, total interest, and repayment schedule.
What affects monthly mortgage repayments?
The main factors are the mortgage amount, interest rate, mortgage term, deposit size, repayment type, and whether the rate is fixed or variable.
What are repayments on a €300,000 mortgage in Ireland?
As an example only, a €300,000 repayment mortgage over 30 years at 4.00% would be about €1,432 per month before mortgage protection, home insurance, or lender fees.
Can extra repayments reduce my mortgage term?
Yes. If your lender allows overpayments, extra monthly repayments or lump sums can reduce the balance faster, save interest, and shorten the mortgage term.
Does this mortgage calculator include mortgage protection or home insurance?
No. It estimates mortgage repayments, stamp duty, and known upfront figures only. Mortgage protection, home insurance, legal fees, valuation, and survey costs should be budgeted separately.
Is this the same as a mortgage affordability calculator?
No. A mortgage calculator estimates monthly repayments for a chosen loan amount, rate, and term. A mortgage affordability calculator estimates how much you may be able to borrow based on income, deposit, and lending rules.

Related Guides

Example Monthly Mortgage Repayments

Many users search for repayments on a 200k, 300k, or 400k mortgage. The examples below show how monthly mortgage repayments can change by loan amount when the interest rate and term stay the same.

These examples assume a 30-year repayment mortgage at 4.00% interest. They are for illustration only, because your real repayment will depend on the rate, term, mortgage type, and lender offer available to you.

Mortgage amountExample monthly repaymentTotal repayableTotal interest
€200,000€955€343,739€143,739
€300,000€1,432€515,609€215,609
€400,000€1,910€687,478€287,478
€500,000€2,387€859,348€359,348

Use the calculator above to replace these example figures with your own property price, deposit, rate, and term.

How Mortgage Repayments Are Calculated

A mortgage repayment calculator uses the loan amount, interest rate, and term to estimate the regular payment needed to repay both capital and interest over time.

For a standard repayment mortgage, each monthly payment includes interest on the outstanding balance and a capital repayment that reduces the loan. Early in the term, more of the payment goes towards interest. Later in the term, more goes towards reducing the balance.

A longer mortgage term usually lowers the monthly repayment, but it can increase the total interest paid over the full mortgage. A shorter term usually increases the monthly repayment, but can reduce the total interest cost.

Interest rate changes can have a large effect on repayments. That is why the result panel includes a rate comparison and a simple stress-test view, helping you see how the payment could move if rates increased.

Extra Repayments and Overpayments

If your lender allows overpayments, paying a little extra each month or making a lump-sum repayment can reduce the total interest and shorten the mortgage term.

Example overpaymentEstimated time savedEstimated interest saved
€100 extra per month3 years 6 months€28,747
€200 extra per month6 years 2 months€50,412
€10,000 lump sum1 year 10 months€21,972
€100 monthly + €10,000 lump sum5 years€46,716

Example based on a €300,000 mortgage over 30 years at 4.00%. Fixed-rate mortgages may have overpayment limits or break fees, so always check your lender terms first.

Mortgage Costs Beyond the Monthly Repayment

The monthly repayment is only one part of buying a home in Ireland. Your budget should also include deposit, stamp duty, legal costs, valuation fees, survey costs, insurance, and moving costs.

Cost typeWhat it meansIncluded in this calculator?
DepositYour upfront contribution towards the property price.Yes
Stamp dutyTax paid on the property purchase.Estimated
Legal feesSolicitor/conveyancing costs.No
Valuation or surveyProperty checks requested by lender or buyer.No
InsuranceMortgage protection, home insurance, or related cover.No

Use the Stamp Duty Calculator, Help to Buy Calculator, and First Home Scheme Calculator alongside this mortgage repayment calculator to build a fuller Irish home-buying budget.

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