Over ten years, buying a CZK 5,000,000 flat with a mortgage at 5.00 % beats renting it for CZK 18,000 a month, a typical 2026 rent for a Prague studio (1+kk), if the flat gains at least 0.3 % in value a year and the tenant would invest their savings at 4 %. So in Prague buying usually comes out ahead, but by a smaller margin than people tend to assume.
If the tenant earned 6 % instead, the flat would need to gain at least 1.2 % a year.
The idea that renting is throwing money away does not hold. Owners also pay for housing with money they never see again: interest, the repair fund, insurance, tax and the lost return on their own funds. At a rate of 5.00 % these costs are similar to rent in the early years. The difference comes from the rise in the flat's price and how long you stay. With your own numbers, the rent vs buy calculator does the sums.
Rent-to-price ratio as a first guide
The quickest test is annual rent divided by the price of the flat. Interest on a mortgage covering 80 % of the price at 5.00 % comes to 4 % of the price a year, and running an owned flat adds roughly another per cent. If annual rent is below 4–5 % of the price, renting is relatively cheap. Above that line it is relatively expensive, and buying pays off sooner.
| Prague, 2026 (indicative) | New-build price | Monthly rent | Annual rent / price |
|---|---|---|---|
| 1+kk (studio), 35 m² | approx. CZK 5.2 million (CZK 148k/m²) | CZK 16,000–20,000 | 3.7–4.6 % |
| 2+kk, 55 m² | approx. CZK 8.1 million (CZK 148k/m²) | CZK 20,000–26,000 | 3.0–3.8 % |
In Prague, then, rent is on the cheap side relative to prices, especially for larger flats. New-build prices are based on the ČBA monitor (CZK 146–150k/m²); the floor areas are illustrative. Outside Prague prices tend to be lower and the ratio more favourable to buying, but check the actual figures for the area you have in mind.
What tenants pay and what owners pay
A fair comparison sets costs against costs, not the mortgage payment against the rent. The payment includes principal, and that is savings stored in the flat.
- Owner: interest, contributions to the building's repair fund (fond oprav), insurance, property tax (doubled from 2024), maintenance and the lost return on own funds. On the plus side, the owner can deduct interest from the tax base, up to CZK 150,000 a year for loans taken out from 2021.
- Tenant: rent, rent increases, the deposit (kauce) and moving costs. The advantage is flexibility: give notice and move, with no sale and no agent's commission.
The model only works if the tenant really invests both the own funds not spent on the flat and the monthly difference between the owner's costs and the rent. A tenant who spends it loses the comparison every time.
Is buying or renting cheaper over ten years?
A ten-year model. Flat for CZK 5,000,000, own funds CZK 1,000,000, mortgage of CZK 4,000,000 over 25 years at 5.00 % (payment CZK 23,384, rate unchanged throughout). Running costs CZK 3,500 a month. Comparable rent CZK 18,000, rising by 3 % a year.
- Over 10 years the owner pays CZK 1,763,000 in interest and still owes CZK 2,957,000. At a 15 % tax rate, the interest deduction gives back roughly CZK 225,000.
- The tenant invests the CZK 1,000,000 and, every month, the difference between the owner's costs and the rent, starting at CZK 8,884.
| Result after 10 years | No rise in the flat's price | Flat +2 % a year | Flat +4 % a year |
|---|---|---|---|
| Owner: value of the flat | CZK 5.00 million | CZK 6.09 million | CZK 7.40 million |
| Owner: net worth (flat − debt + tax saving) | CZK 2.27 million | CZK 3.36 million | CZK 4.67 million |
| Tenant: investments at a 4 % return | CZK 2.44 million | CZK 2.44 million | CZK 2.44 million |
| Tenant: investments at a 6 % return | CZK 2.89 million | CZK 2.89 million | CZK 2.89 million |
If the flat does not rise in value, the tenant comes out ahead by CZK 170,000 to 620,000. With prices rising 2 % a year, the owner leads by more than CZK 400,000. Returns, rent growth and price growth are assumptions, not a forecast, and the model leaves out the cost of selling the flat and tax on investment returns. Plug in your own figures in the rent vs buy calculator.
When buying wins
- You want to stay in the flat for at least 10 years. The longer the horizon, the harder the repaid principal and price growth work for you.
- Annual rent in the area is high relative to the price, roughly above 4–5 %.
- Your income is stable and you will still have savings left after paying your own funds.
- As tenants you would not invest the difference anyway. For many people a mortgage is the only savings plan they actually stick to.
- You pay income tax and will use the interest deduction; how to claim it is explained in Mortgage interest deduction.
When is renting in Prague the better choice?
- You will probably move within 3–5 years. Fees, commission and the risk of selling below the price do not pay back over such a short time.
- Rent is cheap relative to the price, typically for larger flats in Prague with a ratio below 4 %.
- Your income is uncertain, or a higher payment after the fixation ends would push you to the edge. A rate 1 pp higher lifts the payment from CZK 23,384 to CZK 25,772.
- Your own funds would not stretch far enough without using up all your savings.
If you are set on buying and mainly weighing up the timing, carry on with When to buy property.
Sources
- ČBA – Hypomonitor and property price monitor, Q2 2026
- Act No. 586/1992 Coll., on income taxes, § 15(3) (interest deduction, CZK 150,000 cap)
- Act No. 338/1992 Coll., on immovable property tax (as amended from 1 Jan 2024)
- ČNB – LTV cap for owner-occupied mortgages