Your mortgage is likely the single biggest financial tie you share with your partner, so when a marriage or relationship ends, it’s often the biggest practical stumbling block too. Divorce is a legal process, but the property and mortgage decisions that come with it are a financial one, and they’re the decisions that shape your position for years afterwards.
As a joint mortgage holder, you’re both still liable for the full mortgage even if one of you moves out, the lender doesn’t recognise “half a mortgage.” The first step, before anything else, is to contact your lender directly and let them know your circumstances have changed. Once that’s done, it’s worth understanding the options actually available to you.
Option 1: Sell the property and split the equity
Selling clears the mortgage and the property in one move, and, depending on what you and your ex-partner agree, and whether a trust deed is in place, you may each be entitled to a share of the proceeds. Agree the split in principle before the property goes to market. Trying to agree percentages after a sale has completed is where things get expensive and contentious.
Option 2: One of you buys out the other (transfer to sole ownership)
If one partner wants to keep the home, they can buy out the other’s share of the equity and take on the mortgage solely. This means proving to the lender that the mortgage is affordable on one income alone, and usually getting the property revalued so the buyout figure is fair to both sides.
This step matters more than it might seem. However well things end, being left jointly liable for a mortgage with no legal claim to the property if your ex-partner later misses payments is a real risk, get a solicitor to formalise the transfer of equity properly rather than relying on a verbal agreement.
Option 3: Transfer partial ownership
If one of you wants to stay in the home but can’t take on the full mortgage alone, partial ownership is a middle ground, buying some, but not all, of your ex-partner’s share (for example, moving from a 50/50 split to 85/15). Your ex-partner keeps a stake and a claim on future proceeds if the property is later sold.
Courts can also formalise this with a Mesher order (delays the sale until a set point in future, often when a youngest child turns 18) or a Martin order (lets one partner stay for life, or until they remarry). Either way, if your name is on the mortgage, you’re liable for the full payment regardless of what percentage of the property you actually own.
Option 4: Keep things exactly as they are
The simplest option on paper – nothing changes, the mortgage continues as before. It’s also the riskiest, since two people now typically need to fund what was one household’s costs (a mortgage plus rent, or two mortgages), and it relies entirely on both parties continuing to pay reliably with no legal recourse built in if that stops.
If you’re not sure which option fits your situation
Every mortgage, and every divorce, is different, and the right route depends on your specific lender, income, and what you and your ex-partner can agree. Rushed property decisions made during separation are some of the costliest people make, whether that’s selling too quickly, staying in a home that isn’t really affordable, or agreeing a buyout without knowing what a lender will actually support.
If you want to think it through properly before deciding anything, our free guide, Divorce, Property and Your Wealth Reset, covers this in more depth: how to treat divorce as a financial reset rather than a rushed decision, the most common property and mortgage mistakes people make during separation, and a clear look at the realistic property routes available given today’s mortgage market. It’s free to download and written to help you get to a decision from a position of clarity rather than pressure.
When you’re ready to talk through your specific options, book a mortgage appointment with our team, it’s free, with no obligation.
This article covers the property and mortgage side of separation only. For the legal process itself, speak to a family solicitor.
