Cohabitation agreement for unmarried partners (Poland)

Published byDocMuse

An agreement for couples living together in Poland without marrying: how they share housing and living costs, what each keeps as personal property, how things bought together are co-owned, how they settle up if they separate, and who leaves the home. Poland has no registered partnerships — the closest-person status law did not take effect after the Sejm failed to override the presidential veto in September 2026 — so these matters are settled by a civil-law contract.

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Common questions

Can an unmarried couple register a partnership in Poland?

No. Polish law has no registered partnerships. The Sejm passed a law on the status of a closest person and a cohabitation agreement, but the President vetoed it on 17 July 2026, and on 17 September 2026 the Sejm failed to override the veto. Partners can therefore arrange their affairs only through civil contracts, powers of attorney, medical authorisations and wills.

Does a partner inherit when the other partner dies?

Not by law — a partner is not among the statutory heirs. They can inherit only under a will, which each partner makes separately because a joint will is void (art. 942 of the Civil Code), and they pay inheritance tax as an unrelated person, in the highest tax group. Tenancy is the exception: someone who lived with the tenant as a partner and shared the flat takes over the lease when the tenant dies (art. 691 of the Civil Code).

How are things bought together divided when partners separate?

Without marriage there is no community of property, so things bought together are co-owned in fractional shares — where the shares cannot be established, they are presumed equal (art. 197 of the Civil Code). The split can be agreed by contract; failing agreement, either partner can ask the court to end the co-ownership (art. 210). Receipts, transfers and a list of belongings attached to the agreement make it easier to show who contributed what.