Buying out your partner from the shared home: how does it work?
7 min read
A buyout means one partner takes over the home and pays the other their share — based on a valuation, documented contributions and ownership shares, plus a bank willing to refinance the mortgage.
In short
- A buyout has four steps: value the home, calculate each share, agree the settlement, refinance the loan.
- Documented contributions and ownership shares decide the numbers — memory does not.
- A waterfall settlement returns contributions first, then splits the surplus by ownership shares.
- The bank must approve the partner who keeps the home as sole borrower.
- Without documentation from the start, the settlement can be nearly impossible to reconstruct years later.
Start tracking what's yours — together.
Free · iOS · No subscription required for asset tracking
Step one: agree what the home is worth
Everything else depends on the valuation. The common options are a professional appraisal, an estate agent's assessment, or — if you are genuinely on the same page — an agreed figure based on recent comparable sales.
When you disagree, the standard fix is to get two or three independent valuations and use the average, or a figure between them. Write down which method you will use before the numbers come in, so neither of you shops for the valuation that suits them best.
Step two: calculate each partner's share
The buyout price is not simply half the market value. Start from the net value — market value minus outstanding mortgage and any sale-equivalent costs — and then work out who owns what.
A waterfall settlement handles this in stages: the mortgage is repaid first, then each partner gets their documented contributions back, and whatever remains is split according to the agreed ownership shares. If you each contributed equally and own 50/50, the result is a clean split. If contributions were unequal, the waterfall is what keeps the settlement fair.
This is where documentation does the heavy lifting. A couple who logged every deposit, extra repayment and renovation as it happened can produce the settlement figure in an afternoon. A couple reconstructing eight years of mixed payments from bank statements and memory is in for a negotiation, not a calculation.
Step three: the bank has a vote
Agreeing between yourselves is not enough. If the mortgage is joint, the partner keeping the home must normally be approved by the bank as sole borrower — or take out a new, larger loan that both refinances the old one and funds the buyout payment.
Start this conversation early. The bank's answer decides whether the buyout is feasible at all, and the process — valuation, credit assessment, paperwork — typically takes weeks to a few months. Until the loan is refinanced, both partners usually remain liable for the old mortgage, whoever lives in the home.
Costs, timeline and paperwork
A buyout is cheaper than selling on the open market — there is no agent's commission and often no full set of sale costs — but it is not free. Depending on the country you may face valuation fees, registration or title transfer fees, and in some jurisdictions stamp duty or similar taxes on the ownership transfer.
A realistic timeline is one to three months: valuation, agreement, bank approval, transfer of title and release of the departing partner from the mortgage. Do not skip the last two — an ex-partner still registered as owner or borrower is a problem that does not age well.
Why this is easy for some couples and brutal for others
The mechanics above are the same for everyone. What varies enormously is how long step two takes. Couples who agreed ownership shares and logged contributions from day one settle on numbers, not on narratives.
cohab is built for exactly this: each contribution is logged with amount, date and owner, the waterfall model is applied automatically, and the agreement is signed digitally — so if a buyout ever happens, the settlement figure already exists. cohabitants in most countries do not have the automatic protections married couples have; the documentation you keep is the protection you get.
Frequently asked questions
Who decides what the home is worth?
Ultimately the two of you, but in practice an independent appraiser or estate agent. If you disagree, a common solution is two independent valuations and a figure between them — agree the method before the numbers arrive.
What if we disagree about the ownership shares?
Then documentation decides. Registered shares, the written agreement and the contribution record carry far more weight than recollections. Without them, the dispute often ends in mediation or court — slow and expensive compared with having written it down.
Does the bank have to approve the buyout?
Yes, if there is a joint mortgage. The partner keeping the home must normally qualify as sole borrower, and the departing partner should be formally released from the loan. The bank's assessment is often the bottleneck in the timeline.
Can one partner refuse to be bought out?
That depends on national law and what you have agreed in writing. In many countries a co-owner can eventually force a sale, but not necessarily a buyout on their terms. A signed agreement covering buyout scenarios is the strongest protection for both sides.
Rules on valuations, forced sales, transfer taxes and mortgage release vary widely between countries — and cohabitants usually have fewer automatic rights than married couples. Document your arrangement and take local advice before a buyout.
This guide is general information, not legal advice. Rules differ between countries — consult a local professional for your situation.
Start tracking what's yours — together.
Free · iOS · No subscription required for asset tracking