Current mortgage
What you currently have at the bank.
New offer
The rate another bank is offering.
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Czech mortgage refinancing — when it pays off
Refinancing means moving your mortgage to a different bank that offers a better rate. It's not the same as refixing with your current bank at the end of the fixation period — refinancing is an active choice to switch. In 2026, anyone with a mortgage fixed at 5–6 % during 2022–2023 has a real chance at meaningful savings.
The 0.5 percentage-point rule
Practical rule: refinancing makes sense if the new rate is at least 0.5 percentage points below your current rate. Below that, the cost of refinancing (appraisal, lien registration, sometimes a processing fee) eats most of the saving.
Best window: end of fixation
Always refinance at the end of the fixation period. By Czech law your bank cannot charge an early-repayment fee in that window. Start preparing 3–6 months ahead. Outside the fixation end, banks can charge up to 1 % of the prepaid amount (max. 50,000 Kč).
Frequently asked questions
How long does mortgage refinancing take?
From application to disbursement to the new bank: typically 4–6 weeks. If refinancing at the end of fixation, start at least 2 months ahead.
Can I refinance with the same bank?
Technically that's not refinancing but a "negotiated refixation". Your current bank usually offers a new rate before the fixation ends — if a competitor offers better, come back with their offer in writing and ask your bank to match. Works in 60–70 % of cases.
Is refinancing recorded in the bank registry?
Yes, as a standard mortgage. Short-term it can slightly lower your score (the registry sees a new credit check), but long-term it's neutral. There's no negative mark.
What if the new bank rejects my refinancing application?
Your existing mortgage continues unchanged. You have no obligation to the new bank until you sign the loan contract. You can try a different bank or stay with the current one.
Can I change the loan term during refinancing?
Yes. You can extend or shorten the term. Extending lowers the monthly payment but raises total interest. Shortening does the opposite.
Is your fixation period ending?
Calculate the impact of a higher rate and compare competing offers.