Short answer
A higher rate raises payment on the same loan or slows repayment at the same payment. It also reduces the loan that fits a fixed monthly budget. Small rate changes matter over long terms.
Important variables
- Loan amount
- Effective or contractual model rate
- Term and initial amortisation
- Balance at the end of the fixed period
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Worked example
On €350,000 over 30 years, the annuity rises materially when the rate moves from 3% to 4%. Alternatively, the financeable amount must fall at the same budget payment.
Break-even: What changes the result?
More equity reduces the interest base. Overpayment shortens the time interest accrues. A long fixed period reduces rate-reset risk but may be priced differently.
Common mistakes
- Assessing payment without balance
- Confusing nominal rate and total cost
- Equating fixed period and total term
Sources & assumptions
- European Central Bank — Bank interest rate statistics (2026-08-17)
- RATIOXA — Methodology and formulas (2026-08-17)
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