5-Year Fixed vs Variable (POLSTR / WIBOR) Mortgage Rate in Poland – Which Wins Today?
Following NBP rate cuts to 3.75% and the rollout of POLSTR 1M, variable and 5-year fixed mortgages are much closer than before. Compare monthly resets, break-even rates, and early-repayment rules before locking in.
1. POLSTR 1M vs WIBOR 3M vs 5-Year Fixed Rates in Late 2026
With the NBP reference rate at 3.75% and major banks (PKO BP, ING, mBank, Erste, Alior) switching variable loans to POLSTR 1M (~3.48%) while others still use WIBOR 3M (~3.90%) / 6M (~3.98%), variable and 5-year fixed rates are now closely neck-and-neck:
- Top 5-Year Fixed Rates today: 5.88% – 5.99% (3,822 – 3,862 PLN/mo on a 600,000 PLN loan for 25 years, priced off
PLN IRS 5Y ~4.04%). - Typical Variable Rate today (POLSTR 1M / WIBOR 3M + ~1.95% margin): 5.43% – 5.85% (3,663 – 3,811 PLN/mo initially, fluctuating every 1 or 3 months with NBP rate decisions).
A variable loan on POLSTR 1M resets every month (fast rate changes both down and up), whereas a 5-year fixed loan locks in payment certainty for 60 months while still preserving your right to refinance fixed-to-fixed if rates fall sharply.
2. Interactive Rate Simulator: When Does Variable Beat a 5.99% Fixed Rate?
Use the slider below to simulate how future benchmark movements (POLSTR 1M = 3.48% or WIBOR 3M = 3.90%, assuming a 1.95% bank margin) compare against a 5.99% 5-year fixed rate:
Frequently Asked Questions (FAQ)
What if interest rates in Poland fall sharply 2 years after I take a 5-year fixed rate?
You are not trapped! Under the UKNF guidelines in Poland, a borrower on a 5-year fixed rate can refinance to a cheaper 5-year fixed rate at another bank at any time with 0% early repayment fee (unlike variable loans under 36 months, which may carry up to a 3% early payoff penalty).
What is the difference between POLSTR 1M and WIBOR 3M for variable loans?
POLSTR 1M (~3.48%) reflects overnight market rates and resets every 1 month at banks like PKO BP, ING, mBank, Alior, and Erste. WIBOR 3M (~3.90%) resets every 3 months at VeloBank, Millennium, Pekao, BNP, BOS, and UniCredit.
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