Cohabitation agreement vs joint ownership agreement: what's the difference?
5 min read
They are two different documents that complement each other: the joint ownership agreement regulates the property itself, while the cohabitation agreement regulates your wider financial life together.
In short
- A joint ownership agreement covers the property: shares, sale rights, pre-emption and forced sale.
- A cohabitation agreement covers the relationship: belongings, shared costs and what happens if you split.
- One document rarely covers the other's ground properly.
- State the same ownership shares in both, and keep them consistent over time.
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What the joint ownership agreement does
A joint ownership agreement (sameiekontrakt in Norway, samägandeavtal in Sweden) regulates the property itself.
- The ownership shares — who owns what percentage.
- Rights and duties around a sale, including pre-emption rights between the owners.
- What happens if one owner wants out, or if a forced sale becomes necessary.
What the cohabitation agreement does
A cohabitation agreement regulates the relationship more broadly: who owns what among your belongings, how shared expenses are split, what each partner has contributed, and how the finances are settled if you separate.
It can also record the practical arrangements the property document does not cover — who pays which running costs, and how contributions to the deposit, the mortgage and renovations are credited.
Why many couples need both
A joint ownership agreement alone says little about the rest of your shared economy. A cohabitation agreement alone may not meet the formal requirements that apply to co-owned property in your country.
Used together they close the gaps: the property document handles the ownership formalities, the cohabitation agreement handles the life around it.
Keep them consistent
The most common mistake is contradictory documents — 50/50 in one, contribution-based shares in the other. In a dispute, the inconsistency itself becomes the problem.
State the same ownership split in both documents and revisit both when life changes. cohab keeps the agreement text in sync with your logged assets and contributions, so the numbers you agreed are the numbers on record.
Frequently asked questions
Does a cohabitation agreement replace a joint ownership agreement?
Not safely. Co-owned property often has its own formal rules, and the joint ownership agreement is written precisely for them. Treat the two documents as a pair, not alternatives.
Which one should we sign first?
Ideally both when you buy — but if you only do one thing today, document the ownership shares and contributions in writing. You can extend to a full pair of agreements afterwards.
What if the two documents say different things?
Fix it now, not in a dispute. Decide which split is correct, update the outdated document, and make sure both reflect the same agreement.
Do we need a lawyer for both?
Formal requirements vary by country. An app like cohab generates and documents the cohabitation agreement; for property registration and formal ownership documents, check the local rules or take advice.
Names, formal requirements and legal effects of these documents differ between countries — some have specific rules for co-owned homes and cohabiting partners. Check the rules where you live.
This guide is general information, not legal advice. Rules differ between countries — consult a local professional for your situation.
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