Airbnb in Prague in 2026: the rules, and whether a mortgaged flat may be let

A flat bought with an owner-occupier mortgage can go on Airbnb or Booking only with the bank's consent, because commercial accommodation changes both the purpose and the risk of the loan. If you are buying a flat in Prague in order to let it, you need an investment mortgage, and since 1 April 2026 the ČNB (Czech National Bank) has recommended stricter terms for those: LTV 70 % and DTI 7.

The rules for hosts in Prague are still mostly national ones. The EU regulation on short-term rental data has applied since 20 May 2026, but as of 10 October 2026 Czechia runs no registration procedure and the eTurista amendment has not been passed. What applies today is a trade licence when you provide services, the accommodation fee and a guest register.

Short-term letting can bring in roughly twice what a long-term tenant pays, but only with high occupancy, and it costs you time, a trade licence and social contributions. Take a model Prague studio (1+kk) for CZK 5.18 million financed at 5.00 %. Let long-term, it runs at about −CZK 4,500 a month. On Airbnb at 65 % occupancy it makes about +CZK 7,300, and at 50 % it barely breaks even.

The purpose in the loan agreement decides

Your loan agreement states what the money is for, either “acquisition of a property for own housing” or “investment property”. That purpose sets the rate, the maximum LTV and the way the bank assessed your creditworthiness. Letting short-term a flat you declared as your home is a breach of contract, with consequences on several fronts.

The bank may charge a contractual penalty, move the loan to the investment-mortgage rate or, in serious cases, call in the loan (zesplatnění). The interest deduction under § 15 of the Income Tax Act (up to CZK 150,000 a year) applies only to your own home, so you cannot claim it for the years the flat is let. And household insurance written for a permanent residence may not cover damage caused by guests; accommodation use has to be agreed with the insurer explicitly.

If your plans change, say you are moving out and want to let the flat, ask the bank for consent or a change of purpose. Banks are usually more relaxed about long-term letting. Short-term letting more often ends with repricing at the investment rate.

How an investment mortgage differs

LTV 70 % and DTI 7 are recommendations, not a statutory limit. Even so, each bank applies them in its own way, so check the terms with the bank itself. Short-term rental income you are only planning will generally not count towards your creditworthiness. For an existing let, the bank wants to see a tax return and counts only part of the income. More in Mortgage for an investment property.

Airbnb against a long-term tenant

A long-term let yields 3.8 % gross (CZK 198,000 of rent for 11 let months a year, allowing one month without a tenant). That is below the mortgage rate, so with 70 % borrowed, letting a new Prague flat long-term does not pay for itself in October 2026. Airbnb closes the gap only at high occupancy. In this model each 10 pp of occupancy is worth about CZK 80,000 of revenue and CZK 52,000 of net operating income a year. Try your own figures in the Rental yield calculator.

Is short-term letting rental income or a trade?

The tax treatment depends on whether you simply let the space or provide an accommodation service.

A long-term let is rental income under § 9 of the Income Tax Act. You deduct either actual expenses (including interest on the mortgage for the let flat, and depreciation) or a flat-rate 30 % (capped at CZK 600,000), and no social or health insurance is due on it. How the two options compare on a real flat is worked through in our guide to rental income tax.

Short-term letting with services such as cleaning, fresh linen, check-in and a steady turnover of guests usually counts as accommodation. You then need a trade licence (živnostenské oprávnění), and the income is taxed as self-employment income under § 7, with social and health insurance on top.

VAT can follow. You become a VAT payer from 1 January of the year after your turnover in Czechia, accommodation included, exceeds CZK 2,000,000, or from the day after it passes CZK 2,536,500 within a single year (§ 6 of the VAT Act).

Platform commission is another trap. A platform based in another EU country supplies you a service from abroad, which may oblige you to register for VAT as an identified person (identifikovaná osoba) and pay VAT on the commission. Ask a tax adviser before your first guest arrives. You also collect the local accommodation fee (poplatek z pobytu) from guests and pay it to the municipality, keep a guest register and report foreign guests.

For more on how mortgages and tax interact, see Mortgages and taxes.

What can the SVJ and the city of Prague do?

Short-term letting causes a lot of disputes in blocks of flats, and the rules are getting stricter. Before you buy, look at it from three angles:

1. The articles of the SVJ (owners' association) and the declaration of ownership (prohlášení vlastníka) may regulate how units are used, the house rules and how costs are split by number of occupants. Ask the committee what the building thinks of short-term letting and whether the articles are about to change.
2. The approved use of the building matters. A unit registered as a flat is meant for living in, and with intensive accommodation use the building authority may ask whether the use has in fact changed.
3. The city has its own agenda. Prague has long pushed for registration of short-term accommodation, collection of the accommodation fee and data sharing by platforms. The EU regulation on short-term rental data (2024/1028) has applied since 20 May 2026, but according to the Ministry for Regional Development (MMR), as of 10 October 2026 Czechia runs no registration procedure anywhere and requests no data from platforms. The amendment to Act No. 159/1999 Coll. with the eTurista system, which would let municipalities regulate short-term lets, is still waiting for the Chamber of Deputies. Check with the district office and City Hall which obligations apply on the day you buy, because the profit in the model above assumes you can let all year round.

Before you buy a flat for Airbnb

• You are applying for an investment mortgage, not an owner-occupier one, and you have own funds of at least 30 %.
• Your income meets DTI 7 and the bank's internal DSTI without any future Airbnb revenue.
• The numbers still work at 50 % occupancy and a rate 0.5 pp higher (in the model above, the payment at 5.50 % would be CZK 20,588).
• Nothing in the SVJ articles restricts short-term letting, and there is no running dispute in the building.
• The trade licence, VAT on the platform commission, the accommodation fee and liability insurance for guests are all dealt with.
• You know who will clean and hand over keys, and what that costs if it is not you.
• You have a fallback: the flat must also work as a long-term let if regulation curbs short-term letting.