Ireland Mortgage Calculator
New housing loans (avg. agreed rate):3.45%· Aug 2026
Your loan
Pre-filled with the latest official average: 3.45% (Aug 2026, European Central Bank, MFI interest rate statistics).
- Principal & interest€1,406
Upfront costs
- Down payment€35,000
- Stamp duty€3,500
- Legal fees%€2,100
- Cash needed at purchase€40,600
What if interest rates change?
Your payment today is just the start. See how it could move if rates go up or down during your loan.
Range: 3.28% to 3.62% · The rate resets once a year after month 60.
Likely range of your monthly payment
- Most likely
- 80% of outcomes
- Middle 50% of outcomes
- If today's rate holds
In 8 out of 10 simulated futures, you pay between €187,913 and €194,307 in total interest (today's rate: €191,057).
| Scenario | Avg. monthly | Highest monthly | Total interest | vs. today |
|---|---|---|---|---|
| Rate stays at 3.45% | €1,406 | €1,406 | €191,057 | — |
| Drops to 3.28% at first reset | €1,384 | €1,406 | €183,286 | ▼ −€7,771 |
| Rises to 3.62% at first reset | €1,428 | €1,432 | €198,909 | ▲ +€7,852 |
| Climbs steadily to 3.62% | €1,413 | €1,420 | €193,731 | ▲ +€2,674 |
| Falls steadily to 3.28% | €1,398 | €1,406 | €188,397 | ▼ −€2,660 |
| Spikes to 3.62% for 3 years | €1,410 | €1,432 | €192,698 | ▲ +€1,641 |
Based on 600 simulated rate paths that drift randomly within your range and tend back toward today's rate. This is an illustration, not a forecast.
Loan balance over time
- Remaining balance
- Interest paid (cumulative)
- Principal paid (cumulative)
Interest rates in Ireland
Monthly averages. Sources: European Central Bank, MFI interest rate statistics
Buying a home in Ireland: rules and costs
- Stamp duty on homes: 1% up to €1 million, 2% from €1 million to €1.5 million, and 6% above €1.5 million.
- Central Bank rules: first-time buyers can borrow up to 4× income with a 10% deposit; second and later buyers up to 3.5× income.
- The Help to Buy scheme can refund income tax to first-time buyers of new homes.
Sources: Revenue — Stamp Duty · Central Bank of Ireland — mortgage measures · Rules last reviewed 2026-10.
Frequently asked questions
How is the monthly mortgage payment calculated?
For an equal-payment loan, the payment is P × i × (1 + i)^n ÷ ((1 + i)^n − 1), where P is the loan amount, i the monthly interest rate and n the number of months. Taxes, insurance and fees are added on top.
What is the current average mortgage rate in Ireland?
The latest official figure is 3.45% for New housing loans (avg. agreed rate) (Aug 2026, source: European Central Bank, MFI interest rate statistics). Your own rate depends on your deposit, income, credit history and lender.
How much does a 1-point rate rise change my payment?
On a €315,000 loan over 30 years, going from 3.45% to 4.45% raises the monthly payment from €1,406 to €1,587 — about €181 more each month.
What upfront costs should I budget for in Ireland?
On a €350,000 purchase, expect about €5,600 in taxes and fees on top of your down payment. The breakdown is shown in the calculator above.
Can this calculator predict future interest rates?
No. The scenario tool shows a range of possible outcomes based on the band you choose. Nobody can predict rates reliably — use it to check whether you could still afford the loan if rates rise.