How the deadline works

Tenants of open-ended German residential leases always have a three-month notice period: if the letter arrives by the third working day of a month, the tenancy ends at the close of the month after next. What counts is delivery to the landlord — not the date on the letter.

Landlord periods grow with tenancy length

If the landlord terminates, the period extends to six months after five years and nine months after eight years of tenancy — and the landlord additionally needs a legitimate interest (e.g. personal use).

What this calculator cannot see: your contract

A termination waiver, a minimum term, or a fixed-term lease can exclude ordinary termination for a while — and special termination rights (e.g. after a rent increase) can shorten it. Whether your lease contains such clauses, and whether they are even valid, is what the free contract check shows: upload the PDF and the clauses and deadlines are checked automatically.