Free tool
How much can I borrow, and what will it buy?
Put in your income and savings to see the largest mortgage the ČNB's rules and a typical bank's affordability test allow, and the price that buys. Or start from a price to see the monthly payment. Then see the flats for sale within your budget.
From a shared link: change any figure to make it yours.
What do you want to know?
A month26.4K Kč
Mortgage4.9M Kč
Monthly payment
- Monthly payment
- 26,359 Kča month
- Mortgage
- 4,944,000 Kč
A bank will want to see a net income of about 58,576 Kč a month, for the payment to be 45% of it.
- Loan to value
- 76.1% of the price
- The most a bank may lend you: 80%
- Cash on day one
- 1,573,000 Kč
- Interest over 30 years
- 4,545,613 Kč
- Repaid in all
- 9,489,613 Kč
Flats for sale up to 6,500,000 Kč
Live from the listings on Bytky: how many flats for sale ask no more than your budget, by layout. Each opens them on the map.
No area by that name.
Counting the flats…
What you still owe, year by year
Each year’s payments
| Year | Interest | Repaid | Still owed |
|---|---|---|---|
| 1 | 242,579 Kč | 73,729 Kč | 4,870,271 Kč |
| 2 | 238,853 Kč | 77,455 Kč | 4,792,816 Kč |
| 3 | 234,939 Kč | 81,369 Kč | 4,711,447 Kč |
| 4 | 230,827 Kč | 85,481 Kč | 4,625,966 Kč |
| 5 | 226,507 Kč | 89,801 Kč | 4,536,165 Kč |
| 6 | 221,970 Kč | 94,338 Kč | 4,441,827 Kč |
| 7 | 217,202 Kč | 99,106 Kč | 4,342,721 Kč |
| 8 | 212,195 Kč | 104,113 Kč | 4,238,608 Kč |
| 9 | 206,931 Kč | 109,377 Kč | 4,129,231 Kč |
| 10 | 201,406 Kč | 114,902 Kč | 4,014,329 Kč |
| 11 | 195,600 Kč | 120,708 Kč | 3,893,621 Kč |
| 12 | 189,501 Kč | 126,807 Kč | 3,766,814 Kč |
| 13 | 183,091 Kč | 133,217 Kč | 3,633,597 Kč |
| 14 | 176,358 Kč | 139,950 Kč | 3,493,647 Kč |
| 15 | 169,288 Kč | 147,020 Kč | 3,346,627 Kč |
| 16 | 161,857 Kč | 154,451 Kč | 3,192,176 Kč |
| 17 | 154,051 Kč | 162,257 Kč | 3,029,919 Kč |
| 18 | 145,853 Kč | 170,455 Kč | 2,859,464 Kč |
| 19 | 137,239 Kč | 179,069 Kč | 2,680,395 Kč |
| 20 | 128,189 Kč | 188,119 Kč | 2,492,276 Kč |
| 21 | 118,684 Kč | 197,624 Kč | 2,294,652 Kč |
| 22 | 108,696 Kč | 207,612 Kč | 2,087,040 Kč |
| 23 | 98,205 Kč | 218,103 Kč | 1,868,937 Kč |
| 24 | 87,184 Kč | 229,124 Kč | 1,639,813 Kč |
| 25 | 75,605 Kč | 240,703 Kč | 1,399,110 Kč |
| 26 | 63,442 Kč | 252,866 Kč | 1,146,244 Kč |
| 27 | 50,664 Kč | 265,644 Kč | 880,600 Kč |
| 28 | 37,240 Kč | 279,068 Kč | 601,532 Kč |
| 29 | 23,137 Kč | 293,171 Kč | 308,361 Kč |
| 30 | 8,320 Kč | 308,361 Kč | 0 Kč |
How the calculator works
The ČNB sets how much of a home’s value a bank may lend. Banks then test whether you can afford the payments, each its own way. The calculator applies the ČNB’s limits as they stand and a typical affordability test you can change.
What it counts
- Your income: the payment may take at most a share of your net income, less what other loans already take. The most that payment repays over the term is one limit.
- Your savings: the purchase costs come out first. The rest must pay the part of the price a bank may not lend: 20% of the price for most buyers, 10% under 36, 30% for a flat to let.
- For a flat to let, the ČNB also recommends that all your debt stays within 7 times your yearly net income.
- The lowest limit is what you could borrow, rounded down to the thousand. Add your savings after the purchase costs, and that’s the price you could pay.
- The payment is a standard annuity: the same amount every month, mostly interest at first and mostly repayment by the end.
What it leaves out
- The valuation: banks lend against their valuer’s figure, which can come in below the price.
- Rate changes: the rate is fixed for a few years at a time, then set again. The calculator keeps one rate for the whole term.
- Bank fees and insurance the bank may ask for. Compare offers by their RPSN, which counts the fees.
- Each bank’s own checks: your job and residence, your age at the end of the term, the living costs it assumes for your household.
- Tax relief: interest on a mortgage for your own home lowers your income tax. The rent or buy calculator counts it.
Every starting figure and its source
Verified figures come from the ČNB or the law, checked on the date shown. Assumptions are typical values: change them to yours.
ČNB limit: own home80%Verified
ČNB's binding upper LTV limit for mortgages: 80 % (90 % for applicants under 36 buying their own home). Left unchanged on 4 June 2026. Checked 14 October 2026
ČNB recommendation: flat to let70%Verified
ČNB's recommendation since 1 April 2026 for a mortgage on a third or further flat, or one bought to let: LTV 70 % at most. Recommended, not binding; left unchanged on 4 June 2026. Checked 14 October 2026
ČNB recommendation: debt to income× 7Verified
ČNB's recommendation since 1 April 2026 for such a mortgage: total debt at most 7 times the net annual income. Checked 14 October 2026
Most of your income for payments45%Assumption
The ČNB capped loan payments at this share of net income (50% for applicants under 36) from April 2022 until it lifted the cap on 1 July 2023. Banks now test affordability their own way, and some are stricter. Checked 19 October 2026
Mortgage interest rate4.94%Assumption
ČNB average rate on new housing loans to households, August 2026 (4.94 %; mortgages alone 4.86 %). Your bank's offer will differ. Checked 14 October 2026
Mortgage term30 yearsAssumption
30 years, the longest term most Czech banks offer. Checked 14 October 2026
Cadastre fee2,000 Kč, onceVerified
Administrative Fees Act (634/2004 Coll.), item 120, per the Land Survey Office (ČÚZK). Checked 13 October 2026
Lawyer and escrow15,000 Kč, onceAssumption
A typical lawyer's fee for the purchase contract and the escrow of the price. Checked 13 October 2026
Questions
Questions about Czech mortgages
How much can I borrow for a mortgage in Czechia?
Two things set it. The ČNB caps the loan at 80% of the home’s value (90% if you’re under 36 and buying your own home), so your savings decide the most you can borrow. And the bank checks you can afford the payments: a common ceiling is all loan payments at most 45% of your net income. The lower of the two is what you could borrow.
How big a down payment do I need?
At least 20% of the value for most buyers, or 10% if you’re under 36 and buying your own home. For a flat bought to let, the ČNB recommends at least 30%. The purchase costs, about 17,000 Kč for the cadastre fee and a lawyer, come on top.
Is there a limit on payments against income?
Not a legal one for your own home any more. The ČNB capped loan payments at 45% of net income (50% under 36) from April 2022 until July 2023. Banks still test affordability, each its own way, so the calculator uses 45% as a typical ceiling you can change.
What changes for a flat bought to let?
Since April 2026 the ČNB recommends that a mortgage on a flat to let, or on a third or further home, covers at most 70% of its value, and that all your debt stays within 7 times your net income for a year. Switch “What it’s for” to a flat to let to apply both.
What interest rate should I put in?
The calculator starts from 4.94%, the ČNB’s average rate on new housing loans. Your bank’s offer depends on the fixation, the share of the price you borrow and your income. Czech rates are fixed for a few years at a time, so the payment can change when the fixation ends.
Can I get a Czech mortgage as a foreigner?
Usually, yes. The ČNB’s limits are the same for everyone; what differs is each bank’s rules on residence and income. Citizens of the EU living in Czechia are usually treated like Czechs. Our guide to mortgages for foreigners explains what banks ask.

Know what a flat is worth before you call.
Free for flat hunters. No install and no account to start.