End of your fixed-rate period? We'll show you the difference against what you pay now. For some people the repayment comes out lower, for others higher; it mostly depends on when the mortgage was arranged. Our adviser then lines up bank offers side by side. The agreements with banks are his, not ours. The switch is handled online and costs you nothing. Which banks our adviser arranges and which we only describe is set out in our mortgage comparison.
The fixed-rate period is how long the bank holds your agreed interest rate. When it ends, it offers you a new one. That's the moment to compare it with what other banks are offering.
Enter your current mortgage and the rate recalculates instantly, with no "calculate" button. You'll see the figure without giving any contact details.
Enter rates as a percentage, with a full stop or comma; we work with a range of 0.5 to 15%. If your bank has already sent you an offer for the next fixed-rate period, enter that in the first field: that's what you're deciding against, not the rate that's ending.
This calculation is indicative. It covers the chosen fixed-rate period, since the rate is renegotiated when that ends, and deducts the Land Registry's administrative fee of CZK 4,000. It doesn't include bank fees or the property valuation where the bank charges for one. The actual rate is confirmed by the bank based on your creditworthiness and LTV. A mortgage is a loan secured by a property, and not repaying it can lead to the property being sold.
A sample mortgage for a client who took out a CZK 4 million mortgage in 2023 at a rate of 5.89% over 25 years. When the three-year fixed-rate period ends, they move to another bank at a rate of 4.99% for the remaining 22 years.
This is an example for a borrower the switch works out well for. Anyone who took out their mortgage in 2021 had a rate deep below today's market, so their repayment will rise once the fixed-rate period ends, whichever bank they move to. What decides it is the year the mortgage was taken out, not the bank.
| Remaining principal | 4,000,000 CZK |
| Remaining term | 22 years |
| Old rate | 5.89% |
| New rate | 4.99% |
| Old monthly repayment | 27,064 CZK |
| New monthly repayment | 24,989 CZK |
| Difference in repayment | 2,075 CZK monthly |
| Difference over 3 years of the fixed-rate period | 74,697 CZK |
| Total amount payable | 6,597,003 CZK |
| APRC at the new rate | 5.11% |
| Refinancing costs | Land Registry administrative fee CZK 4,000; valuation depending on the bank CZK 0 to 5,000 |
This example is indicative, calculated with the rate valid as at 1. 11. 2026. The actual rate depends on your creditworthiness, LTV and market conditions. A mortgage is a loan secured by a charge over the property, and not repaying it can lead to the property being sold. We'll tell you the commission we receive from banks on request.
The end of a fixed-rate period isn't a single day, it's a window. The law defines it from two sides, and most people don't know about the second one.
The bank must tell you the new rate and the new repayment amount. That's its legal duty, not a courtesy, and it applies to fixed-rate periods of at least a year.
You have the right to repay the mortgage with no compensation for costs. The window runs from the notice, not from the end of the fixed-rate period, so even if the bank writes to you at the last moment, you still have time to compare.
You can repay up to 25% of the original loan amount free of charge. This window isn't something you wait for, it comes round every year.
In practice, that means it's worth starting to compare roughly six months ahead: moving to another bank takes weeks, and you need time for the valuation, the approval and the Land Registry. Some banks can fix a rate years in advance, so it's worth asking even if your fixed-rate period doesn't end until next year.
If just one of these applies, it's worth working out the numbers. If three or more apply, refinance now.
The bank will offer you a new rate. It's worth comparing it, because the first offer tends to be worse than what the bank gives new clients. From the day it's delivered, you have three months to leave with no compensation for costs.
Note that this isn't driven by the CNB's policy rate. Mortgage rates track five-year interest rate swaps with a lag of roughly four months, so a cut in the policy rate may not feed through to mortgages at all. Compare your rate with today's offers, not with the CNB's rate.
If your income has risen significantly since you signed, or your other repayments have fallen, you'll fit into a better band with the bank, and a better rate can come with it. By how much, nobody can say in advance: banks don't publish their pricing tables by creditworthiness.
Been repaying for five years and the property's value has risen? Your LTV has improved. Banks price their rate exactly on this basis, so moving into a lower band shows up in the price.
Combined refinancing merges the switch and extra financing into a single repayment and a single rate. Better than taking out a separate consumer loan.
A credit card, consumer loan or lease can be merged into a single mortgage repayment with a lower rate. It makes more sense the more expensive the loans you're merging are.
Shortening the term when you switch saves on interest, and banks can do it. Extending it is a different matter: the Czech National Bank recommends not exceeding, on refinancing, the term you had with your original bank, so don't take it for granted.
Online arrangement, e-signature, no paperwork. Where you need to do anything through Bank ID, how well banks handle it still varies.
Refinancing isn't a cure-all, and for some people today the answer is no. Here are three situations where we'll tell you straight.
Rates back then were deep below today's market. Once the fixed-rate period ends, your repayment will rise whichever bank you move to. Refinancing won't lower it, it only lets you choose where it rises less.
On a two-million mortgage with twenty years left to run, a 0.1 percentage point difference comes to roughly CZK 110 a month. Over five years that's around CZK 6,600, and CZK 4,000 of that goes on the Land Registry fee. You're left with just under CZK 2,600, or just over CZK 40 a month. Whether that's worth the paperwork is for you to judge.
An offer from another bank is mainly leverage on your own. We cover the difference between re-fixing and switching separately. Some people end up not moving anywhere, just negotiating a better rate with their own bank. That's a good outcome too.
In practice this means: it's always worth working out the numbers, but not always worth switching. The gap between what you pay and what's available is information you'll use either way.
Our adviser handles most of the paperwork for you. You sign through Bank ID.
Our advisers are listed in the Czech National Bank's register, and they're the ones who deal with the bank. How we work.
You enter your current terms (principal, rate, term). You see the difference in repayment straight away. If it makes sense, we'll get in touch. We'll work it out with you more precisely and our adviser compares the banks he arranges mortgages with.
You can handle most of the paperwork through Bank ID: account statement, income certificate, proof of ID. For your current mortgage, a PDF of the loan agreement is enough. Our adviser will go through with you where to apply, and in what order.
Banks return binding offers and you choose between them. You sign the agreement with an e-signature through Bank ID, no branch visit needed. A new property valuation may not be necessary: some banks value a flat in standard housing online, others carry over the existing one.
The new bank repays the old one. You then make repayments to the new bank. No day without a mortgage, no double repayments. Drawdown needs the original bank's consent to the extra repayment and its promise to release the charge over the property; our adviser keeps track of the timing of these steps.
Refinancing is expensive. The penalty eats the saving.
The most common objection is that the bank charges a percentage of the principal for leaving.
Since 1 September 2024, a bank may only charge admin costs up to CZK 1,000 plus the interest-rate difference against the Czech National Bank's average rate. The result can't exceed 0.25% of the amount repaid for each year or part of a year remaining until the end of the fixed-rate period, nor 1% of that amount, nor the interest you would have paid until the end of the fixed-rate period. The lowest of these caps applies, not their sum. At the end of the fixed-rate period, repayment comes with no compensation at all. This cap comes from the Consumer Credit Act, not from the CNB.
One more thing banks don't advertise: some of them don't charge anything for early repayment even outside the fixed-rate period. That's their own choice, not an obligation, so it differs from bank to bank, and it's worth asking before you decide to wait for the fixed-rate period to end.
I have to go back to a branch and sign a pile of paperwork.
We often hear that people don't want to repeat a half-day visit to a bank, so they stay put.
You handle the whole refinancing online: statements, income and the agreement. No branch, no paperwork. If you'd like a face-to-face meeting, our adviser will come to you.
A small difference in the rate isn't worth it.
There's a widely repeated idea of a one-percentage-point threshold below which switching supposedly isn't worthwhile.
What matters is how large the remaining principal is and how many years are left until the end of the term. On a large principal, even a small difference covers the cost of switching several times over, on a small one it might not. Work it out in the calculator above: it uses your own figures, not a general rule, and at the end of the fixed-rate period the bank can't charge you anything for repaying anyway.
If I switch, I'll lose all the benefits from my original bank.
This worry is usually about insurance, a credit card and account discounts, which people expect to lapse once they leave.
A mortgage and a current account are separate products. Refinancing only concerns the mortgage. Your account, insurance and cards stay in place until you cancel them yourself. Some benefits may end, but not automatically.
Refinancing takes months, and I won't go a single day without a mortgage.
A question we hear often: what happens in the gap before the new bank takes over the old mortgage.
The new bank repays the old one in a single moment. You don't have to cover two repayments or deal with any gap. Our adviser coordinates the drawdown with the Land Registry and the old bank.
Yes, and it often makes more sense than switching on its own. Once a year, you can repay up to 25% of the original loan amount free of charge, provided you do it in the month before the agreement's signing anniversary. Combine that with switching at the end of the fixed-rate period, when the bank can't charge you anything, and you reduce the principal and the rate at the same time.
Yes, it's called combined refinancing: the switch and the top-up are merged into a single repayment and a single rate, which stays a mortgage rate rather than a consumer-loan one. The extra money can go towards renovations, but also towards consolidating more expensive loans. Part of the extra amount is usually for any purpose, so you don't need to back it up with invoices, but banks cap it as a share of the total loan amount and it tends to cost more than the purpose-tied part. The whole loan still has to fit within the LTV limit and within what the bank will recognise on repayments.
You can, but it's a new application and a fresh assessment, not a formality. Removing a co-borrower means the remaining applicant has to qualify for the whole repayment alone. Adding one brings in their income, but also their commitments, so the result can go either way. This usually comes up after a divorce or when settling joint ownership.
Often not. Some banks value a flat in standard housing online from public data, with no valuer visiting at all. A new valuation is more likely to be needed for houses, land and non-standard buildings, or if the property has changed in the meantime. We've set out how prices differ on Property valuation.
Yes, but under stricter conditions. Since April 2026 the Czech National Bank has recommended an LTV of no more than 70% for investment properties, so you need a larger share of your own money than for your own home. The bank will also only recognise part of the rental income, since it allows for vacancy and upkeep.
Then nothing happens and you stay where you are. The bank will offer you a new rate at the end of your fixed-rate period, and you can accept it. It's still worth comparing, because the first offer tends to be worse than what the bank gives new clients. And if you arranged your mortgage in 2020 or 2021, when rates were deep below today's, switching may not be worth it at all; what decides it is the year you signed, not the bank.
No, that's a different situation: either you repay the mortgage from the sale price, or the buyer takes it over, or the charge is transferred to a new property. We cover this on Selling a property with a mortgage. If you're buying a new home at the same time, transferring the charge is usually cheaper than taking out a new mortgage on today's terms.
Our service is free. The bank pays our adviser a commission for the loan it arranges. What remains is the property valuation, which depending on the bank comes to zero to five thousand (a quick online valuation of a flat in standard housing is often free, an unusual property is charged for), and the Land Registry's administrative fee of CZK 4,000 for registering the new charge and removing the old one. At the end of the fixed-rate period, the bank can't charge you anything for early repayment. Outside the fixed-rate period, it may only charge what the repayment actually cost it, capped at 0.25% of the amount repaid for each year or part of a year remaining until the end of the fixed-rate period, and at the same time capped at 1% of that amount.
Yes. How long a bank holds an offered rate is up to each bank; what each one states about this is set out under pre-approved mortgage. It's worth doing the analysis and comparison 6 months before the fixed-rate period ends. If rates are falling, you could lock in a good offer now already. If they're rising, it can be worth moving the end of the fixed-rate period forward, even for a small penalty.
Not always. Some banks don't ask for income proof again on a refinancing with no increase in the loan amount, provided you've kept up your repayments: they can see your repayment history and treat it as proof in itself. It isn't a market-wide rule, it's a specific bank's own condition, so we check this for you right at the start.
Your current loan agreement, a bank statement covering 3 months, an income certificate (or a tax return if you're self-employed), your ID card. For refinancing you usually won't need a new property valuation; how each bank handles this is covered under property valuation. You sign through Bank ID, so you won't need to visit a branch.
If the bank turns you down, you go back to your original bank with a newly agreed fixed-rate period and lose nothing by it. A rejected application does, though, stay in the register, for a year in the banking register and six months in the non-banking one, and other banks will see it there. So it doesn't make sense to submit applications to several banks at once; it's better to find out the reason for the first rejection and work from that.
You enter the numbers and see the difference in repayment straight away. Our adviser then goes through the banks he arranges mortgages with and talks you through what makes sense. No obligation and no paperwork.