Rent increases in Prague: what landlords may and may not do

The email is polite and short: from next quarter your rent will be higher, and thank you for being a good tenant. Your first thought is whether this is even allowed. Sometimes it is and sometimes it is not, and the answer sits in two places: your lease and the Civil Code.

Two routes to a higher rent

The lease route. Many Czech leases contain a clause that adjusts the rent. The commonest is an inflation index: each year the rent rises by the previous year's consumer price inflation, which the Czech Statistical Office (ČSÚ) publishes. Because you signed the clause, the landlord can apply it according to its wording. Read yours for the index used, the date, any cap and how the landlord must notify you.

The statutory route. If the lease has no such clause, the landlord can still ask for an increase under § 2249 of the Civil Code, to bring rent closer to the level that is usual locally. On this route the increase is capped at 20% over three years (as of 2026; check the current text of the law before relying on it). The request must be in writing and state the new amount.

Tenancy law is amended from time to time, so confirm the wording on the Ministry of Regional Development or Ministry of Justice pages.

How you respond

On the statutory route the tenant's move is to answer in writing. Under the Civil Code the tenant has a limited window to object, about two months from receiving the request (check the exact period in the current text of § 2249 the day the letter arrives). If you object in time, the landlord cannot simply impose the new rent, and has to turn to a court. Silence can be read as agreement, which is why a letter that feels unfair should never be ignored.

If the increase comes through a lease clause, you do not object so much as check: is the clause valid as written, is the arithmetic right and was the notice given as the lease requires?

What a landlord may not do

A landlord may not raise your rent mid-term just by announcing it when neither route applies. An unexplained increase, a new fee for something that used to be included, or a demand to pay a higher amount into a different account with no written explanation should all be questioned.

Nor may a landlord end your tenancy because you refused an increase. An open-ended lease can be ended by the landlord only on the statutory grounds, with proper notice that tells you about your right to go to court. Our exit rules explainer describes that. And no landlord can demand a deposit above the three-month cap.

When the letter arrives

Negotiating helps. If the step is large, propose a smaller rise, a longer lease or a rent fixed for a year; our guide to negotiating rent works through it. A smaller rise can still leave you better off than moving, which has costs of its own; see moving within Prague.

Checking the maths

If the clause says rent rises by annual inflation, find the figure on the Czech Statistical Office site for the period the lease names. A hypothetical example: the lease sets the rent at 20,000 CZK, and inflation under the lease's chosen measure is 3%. The new rent would be 20,600 CZK. If the landlord asks for more than the clause allows, the extra is not due, so ask to see the calculation.

A hypothetical check on the 20% rule: a rent of 20,000 CZK three years ago could rise to at most 24,000 CZK on the statutory route over a three-year period, counting earlier increases on that route. Ask how earlier changes are counted before you accept a figure.

Letters, emails and what counts

An increase should be communicated clearly, in writing, with the new amount and the basis. A casual remark in the corridor or a message that says only "rent will go up" is a conversation, not a notice. If your lease says notices must go by registered letter or to a named email address, the landlord should follow it. Keep every message and reply in writing so there is a record.

If the landlord is a company or uses a managing agent, ask for proof of authority to act. It is a fair question and avoids paying a changed amount to the wrong party.

Market rents versus your lease

Market rents can rise without touching you while your lease runs. They bite at renewal: a fixed-term lease that ends gives the landlord the chance to ask for a new price, and the market sets it. Our review of the rental market this year puts that in context. Service advances are separate from rent and follow their own settlement rules; see who pays what.

Most increases end in conversation. Ask for the calculation and the date it applies from. If it follows your clause, check the figure. If it is on the statutory route, ask how the landlord arrived at the local usual level. Landlords generally prefer a stable tenant to a vacancy, and a courteous reply gets a better hearing than an angry one. If the dispute turns serious, take advice from a lawyer who knows tenancy law before you stop paying anything or move out; our guide to finding an English-speaking lawyer explains where to start.

Frequently asked questions

Can my landlord raise the rent whenever they want?

No. They need a clause in the lease or must follow the statutory route, which is limited to 20% over three years (as of 2026; check the law).

Is an inflation clause legal?

Yes, if it is in the lease you signed. Read how it is worded.

What if I refuse the increase?

On the statutory route, object in writing within the period the law sets. The landlord then has to go to court rather than impose the new rent.

Can the landlord evict me for refusing?

Not for that reason alone. An open-ended lease can be ended by the landlord only on statutory grounds.

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