Can I get a new joint mortgage even though I’m still on the joint one with my ex wife?

Getting a second joint mortgage with a new partner

Yes, it’s usually possible to take a new joint mortgage with your new partner even if you’re still named on a joint mortgage with your ex-wife.

The practical issue is affordability. Lenders will need to understand the full picture, including the existing mortgage, any child maintenance, and whether you could realistically afford the new borrowing alongside those existing financial commitments.

Why it’s still possible

Being named on an existing joint mortgage does not automatically prevent you from buying again.

However, it does mean the lender will look carefully at your overall position. In most cases, the existing mortgage will still need to be factored into the affordability assessment in some way, because you remain legally liable for it while your name is still on the mortgage.

Different lenders approach this differently. Some may use the current monthly mortgage payment, some may use a stressed payment, and others may assess the outstanding mortgage balance or wider property running costs. The key point is that it cannot simply be ignored just because your ex-wife is currently living in the property or making the payments.

What lenders will focus on

Most of the underwriting comes down to three areas:

1) The existing mortgage on the former marital home

Lenders will want to know how much is outstanding, what the monthly payment is, who is actually paying it, and whether the mortgage has been maintained well.

Even if your ex-wife pays the mortgage in full, many lenders will still treat it as a commitment because you remain jointly and severally liable. That means if payments are missed, the lender can still pursue either borrower.

Where there is strong evidence that your ex-wife has been paying the mortgage reliably, some lenders may take a more rounded view of the overall case. However, that does not mean the existing mortgage will be ignored.

2) Child maintenance and other regular commitments

Child maintenance is normally treated as a committed monthly outgoing.

That does not mean a new mortgage is impossible, but it will reduce disposable income and can affect the amount you are able to borrow. Lenders will also look at other regular costs, including loans, credit cards, childcare, service charges, ground rent, council tax and any other property-related costs.

3) Your legal and financial link to the property

Lenders will want to understand the ownership position and whether there is a formal agreement in place.

That could include a consent order or separation agreement setting out who lives in the former marital home, who pays the mortgage, and whether there is a plan for one party to be removed from the mortgage later on.

This matters because, from a lender’s point of view, there is a difference between an informal arrangement and a legally documented one.

Can you have two joint mortgages?

Yes, it is possible to be named on two joint mortgages.

The challenge is whether the lender is comfortable that the total borrowing is affordable. To keep the existing mortgage and take on a new one with your new partner, the lender will need to see enough income to support the new mortgage while also taking account of the existing mortgage commitment and any other regular outgoings.

This can be more difficult where income is already stretched, where there is child maintenance to pay, or where the existing mortgage is large compared with your income.

What helps your case

A few things can make a material difference:

• A formal agreement, such as a consent order, setting out who pays what
• Clear evidence that your ex-wife has been paying the mortgage from her own account, if that is the arrangement
• A clean payment history on the existing mortgage
• Evidence of your child maintenance arrangement
• A realistic plan for how and when you may be removed from the existing mortgage, if that is the long-term intention
• Clear details of the new purchase, deposit, income and expected mortgage amount

This evidence does not mean the existing mortgage will simply be ignored for affordability. While your name remains on the mortgage, lenders will usually need to factor it in in some way.

What the evidence can do is help a broker identify lenders that may take a more suitable view of the overall situation, whether that means assessing the monthly payment, applying a stressed figure, looking at the outstanding balance, or considering the wider circumstances manually.

The main watch-out

The main point to be clear on is that your existing mortgage is still relevant for affordability.

Even if your ex-wife pays it, you remain legally responsible while your name is on the mortgage. That is why lenders may still include it as a commitment, stress the payment, or look at the outstanding balance when deciding how much you can borrow.

It also means you should be careful about stretching your borrowing too far. On paper, you may feel you are only paying for the new home, but legally you still have a financial link to the old one.

What to do next

Start by getting a clear picture of your current commitments, including the existing mortgage balance, monthly payment, child maintenance and any other regular outgoings.

Then speak to one of our experienced mortgage brokers, who can run affordability across a range of lenders and help identify which options may be available based on your circumstances.

This is one of those cases where lender choice really matters, because policy can vary significantly. A broker can help establish which lenders are more likely to take a sensible view, how the existing mortgage may be assessed, and what evidence will be needed before an application is submitted.