Fixed or variable rate? How to choose in 2026
A fixed rate gives certainty for 5 years, a variable one follows WIBOR. Which one is better for you depends on more than today's numbers.
Kready · 2026-08-26
Polish mortgages come in two main versions: with a variable rate and with a periodically fixed rate (usually for 5 years).
Variable rate
- Interest = bank margin + WIBOR (3M or 6M).
- The installment changes when WIBOR changes – down or up.
- Often slightly lower at the start.
Periodically fixed rate
- The rate is fixed for a period, typically 5 years, sometimes longer.
- After that, the bank offers a new fixed rate or the loan switches to variable.
- Predictable payments – you know exactly what you'll pay.
- Higher maximum loan: the regulator's 2.5 pp stress buffer usually doesn't apply to loans fixed for at least 5 years.
How to decide
Ask yourself:
- Could your budget handle an installment 15–20% higher if rates rise? If not, a fixed rate protects you.
- Do you expect to sell or refinance within a few years? Check early repayment conditions.
- Is creditworthiness tight? A fixed rate may be the only way to get the amount you need.
Our tip
Compare both in the calculator: choose "Show me all options" and look at the payment and the total cost of each offer.