Check in 2 minutes whether your rent may violate the rent cap — free, anonymous and fast.
The German rent cap (Mietpreisbremse, § 556d BGB) limits new rental prices to no more than 10% above the local reference rent (Vergleichsmiete). This free calculator checks whether your rent may exceed the legal cap based on official 2025 rent index data.
Average overpayment in Munich: €220 per month · €2,640 per year
4 steps to legal clarity
Your address determines which rent index applies and what location grade your flat has.
Floor area, year of construction and number of rooms — all in your tenancy agreement.
We compare your rent against the legal maximum and show the difference.
Receive your full assessment and decide which next steps are right for you.
Other providers take up to 30% of your refund. We charge €9.90 — one-off.
No waiting time, no initial consultation, no forms. Result immediately.
The rent check is and remains free. No account needed.
Receive a detailed assessment of your rent situation based on the official rent index.
Calculation based on the official rent index and current law (BGB).
No black box. You can see exactly how we calculate and what the limit is based on.
No personal data stored. Calculation parameters are recorded anonymously for quality assurance — never sold or shared.
Every month without checking is a month you may be overpaying. Check for free now.
Check rent nowThis information was compiled based on current German legislation.
The rent cap (§ 556d BGB) limits new tenancy rents to a maximum of 10% above the local comparative rent (rent index). It applies in 285+ municipalities classified as having a tight housing market.
Under § 556g BGB, a written communication to the landlord is required. From the date it is received, recovery of overpaid amounts may potentially be possible. For concrete next steps, we recommend a tenants' association.
In most cases yes — if the flat was first let before October 2014 and is located in one of the 285+ municipalities. Exceptions: new builds after 2014 and comprehensively modernised flats (§ 556f BGB).
Since the 2020 reform (§ 556g para. 2 BGB): from the date the communication is received by the landlord. An early assessment is worthwhile — potentially retroactive up to 30 months.
The rent check and the result are completely free.
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