Sell or rent out your Prague flat: how to compare the two honestly

Leaving Prague for a job in another country is the classic moment. The flat is paid for or nearly so, it is worth more than it was, and the question arrives on the packing list: keep it and let it, or sell it and take the money. There is no right answer in general. There is a way to set the two options side by side so that the choice stops being a feeling.

This article gives that structure. It does not quote prices or yields, which depend on the flat and the period, and it is not tax advice.

Two different bets

Selling converts a flat into cash, which then earns whatever you do with it. Letting keeps the flat, so you keep the exposure to the Prague market, in both directions, and add the income and the work of a landlord. The comparison is therefore between two streams over time, plus a final value. For letting, that is net rent each year plus the sale value at the end. For selling, it is the net proceeds today plus what you earn on them.

The tempting comparison is headline rent against headline price. The useful comparison is net with net, after costs, after tax and over the same horizon.

What you would receive from a sale

Start with the realistic price, not the hoped-for one. A valuation from an agent and an independent estimate give a range, as the article on valuing your flat before selling explains. Deduct the costs of selling, which our explainer on what it costs to sell a flat in Prague lists, including any commission and the early repayment of a mortgage. If you have a mortgage, our pieces on selling a flat with a mortgage and early repayment show what the bank will deduct.

Then the tax. A sale by an individual is exempt from income tax if one of the tests is met (as of 2026; check the Financial Administration):

• the flat was held for 10 years when acquired from 1 January 2021, or 5 years when acquired earlier;
• you lived there for the last two years immediately before the sale; or
• you lived there less than two years and use the proceeds for your own housing by the end of the tax year following the year of receipt, with notice to the tax office.

If none applies, the gain may be taxable. Our guide to tax on income from a property sale goes through it. Note that moving abroad and letting the flat can affect the residence test, since you must have lived there in the period before the sale. If the exemption depends on living there, a period of letting can break it.

The property sale calculator on Hypoteky.com can help set out the costs against a price, as an illustration.

What you would receive from letting

Gross rent is the starting point, then the costs: the owners' association advances (those that the landlord pays and those passed to the tenant), repairs, insurance, any management fee, vacancy between tenants and the cost of furnishing. Our article on renting a flat in Czechia shows the tenant's view and is a reminder of the rights tenants have.

Rental income of an individual is taxed under § 9 of the Income Tax Act. You can deduct actual expenses, or use a flat-rate of 30% of income, capped at CZK 600,000 of expenses, and no social or health insurance is due on private § 9 rental income (as of 2026; check the Financial Administration). Our explainer on tax on rental income covers the rules. Property tax is also due annually, which we describe in annual property tax.

If you leave Czechia, your tax residency may change, but Czech-source rental income from a Czech flat generally stays taxable in Czechia. The treaty with your new country determines how it is treated there, and a tax adviser should look at your case (see Czech tax residency rules).

To estimate a rental return, there is a rental yield calculator on Hypoteky.com. It uses the numbers you enter, so the output is only as good as the rent and costs you assume.

Side by side

The questions numbers do not answer

Several things are decided by circumstances, not arithmetic.

Will you come back? If you plan to return to Prague in a few years, the flat is also a home you will need, and buying again costs money. If you will not, the case for holding is weaker.

Can you manage it from abroad? Letting from another country needs a manager or a trusted person, a tenancy contract that fits Czech law and a way of dealing with repairs. Our piece on selling as a non-resident covers the paperwork on the other side.

Is there a mortgage? If you have one, the bank's terms for letting a mortgaged flat may require consent, and the interest after the fixation ends will change the sums. Ask the bank in writing.

Is the capital needed elsewhere? A sale frees cash for a deposit abroad or for other uses. A flat that is let ties it up. Compare the alternative use of the money honestly, including its risks.

Tenancy law. Czech tenancy law gives tenants strong protections. The landlord can end an open-ended lease only on statutory grounds and with three months' notice, so a plan to sell with vacant possession a few years later needs thought. The deposit is capped at three months' rent (as of 2026; check the official source).

A way to decide

Choose the period first: how many years would you hold the flat if you kept it? Then estimate, for that period, your net rent each year and the likely sale value at the end, and set them against selling now and holding the cash. If you have no strong view on the market, the difference between the two paths is mostly the net income from letting set against what the cash would earn, and the effort and risk that letting adds.

Frequently asked questions

Do I pay tax if I sell my Prague flat?

Not if the sale meets a test: 10 years of ownership for flats acquired from 2021 (5 earlier), two years of living there, or the reinvestment rule. Check the Financial Administration.

How is rental income taxed in Czechia?

Under § 9 of the Income Tax Act, with actual expenses or a 30% flat rate capped at CZK 600,000, and no social or health insurance on private rental income (as of 2026).

Can I keep the flat and still count on the residence exemption?

Only if you lived there for the required period immediately before the sale. A long period of letting can break it, so check before you decide.

Does moving abroad change my Czech tax?

Your tax residency may change, but income from a Czech flat generally stays taxable in Czechia. A treaty determines the rest.

A practical next step

Fill the table above with two sets of numbers, one for a three-year horizon and one for ten. Take it to a tax adviser before you decide, with the date you acquired the flat and the dates you lived in it. Any figures you enter are your own assumptions, not a forecast.

This is a general explainer, not legal, tax or mortgage advice.