Cohabitation After Divorce: Does Living With a New Partner Affect Your Consent Order?

Life moves on after divorce, and for many people that eventually means moving in with someone new. But if your financial settlement includes ongoing spousal maintenance, that new household raises a question few couples think about when they sign: does living with a new partner change what is owed? The answer is more nuanced than most people expect, and this guide walks you through exactly how it works, whichever side of the payment you are on. It covers the law in England and Wales only. Scotland and Northern Ireland have separate family law systems with different rules.

The Short Answer: It Depends on What Your Order Actually Says

There is no single rule that says "cohabitation ends everything". What happens depends almost entirely on the type of order you have and how it was drafted. Before reading further, ask yourself one question: does my consent order include any ongoing payments at all? If it doesn't, most of this article becomes reassurance rather than warning.

The pattern is clear: capital is final, income is flexible. That single distinction explains almost everything else in this guide.

Remarriage vs Cohabitation: Why the Law Draws a Sharp Line

Section 28(1)(a) of the Matrimonial Causes Act 1973 provides that a periodical payments order in favour of a former spouse ends automatically when that person remarries or enters a civil partnership. No application is needed, and the obligation simply stops.

Cohabitation is deliberately absent from that provision. The courts have long resisted treating a new unmarried relationship as equivalent to remarriage. In Atkinson v Atkinson [1988] Fam 93, the Court of Appeal confirmed that cohabitation is a relevant circumstance when a court reviews maintenance, but it is not to be given the same automatic effect as a new marriage. The reasoning is practical. A cohabiting partner owes the recipient no legal duty of financial support, whereas a new spouse does.

Remarriage also has a second, harsher consequence covered in our guide to the remarriage trap. Under s.28(3), a person who remarries before making their own financial claims can lose the right to bring most of them. Cohabitation does not trigger that bar.

If You Receive Maintenance: What Moving In With Someone Really Risks

Moving in with a new partner does not breach your order, and nobody can "cancel" your maintenance on the spot. What it does is give your former spouse a legitimate reason to ask the court to look again.

The court looks at what your partner should contribute, not just what they do

Under s.31 MCA 1973, the court can vary, suspend or discharge a periodical payments order, having regard to all the circumstances, including any change in them. When cohabitation is the change, the court is not limited to asking how much your new partner actually hands over. In Grey v Grey [2009] EWCA Civ 1424, the Court of Appeal emphasised that the relevant question is the contribution the cohabitant ought to be making to the household. An arrangement where a new partner lives rent-free while the former spouse continues to fund the home is unlikely to be viewed sympathetically.

An established relationship can bring maintenance to an end

In Fleming v Fleming [2003] EWCA Civ 1841, the Court of Appeal declined to keep maintenance running for a recipient who had been in a settled cohabiting relationship for several years, stressing that extending a fixed-term maintenance obligation requires exceptional justification. The length and stability of the relationship matter. A few months of shared living is viewed very differently from a long-term household built together.

The possible outcomes of a variation application therefore range widely:

• No change, if the relationship is short-lived or brings no real financial benefit.
• A reduction, reflecting what the new partner should reasonably contribute.
• A term order, allowing maintenance to taper off over a set period.
• Discharge, bringing payments to an end, sometimes with a capitalised lump sum in place of future income.

Every one of these outcomes is discretionary. The judge weighs the facts in front of them, which is exactly why the result is so hard to predict and why so many people prefer certainty at the outset.

If You Pay Maintenance: Why You Cannot Simply Stop Paying

It is entirely understandable to feel it is unfair to keep funding a former spouse who now shares a home and bills with someone else. But the order remains legally binding until the court changes it.

The correct route, step by step

1. Keep paying in full while you take the next steps.
2. Gather factual information about the new arrangement: how long it has lasted, whether the household is shared, and whether the partner contributes to housing costs.
3. Try to agree a variation directly or through mediation. If you reach agreement, it can be submitted to the court as a consent order. The HMCTS fee for an application by consent is £62.
4. If agreement fails, apply to vary using Form A. You will normally need to attend a Mediation Information and Assessment Meeting (MIAM) first, unless an exemption applies, for example where there is evidence of domestic abuse or the application is urgent. The contested Form A fee is currently £321.

Worked Example: Two Couples, Two Very Different Outcomes

Sarah and James agreed a consent order in which James pays Sarah £900 per month in spousal maintenance for their joint lives. There is no cohabitation clause. Three years later, Sarah moves in with Tom, who earns a full-time salary.

• James's obligation does not stop. He must keep paying £900 per month.
• James can apply to vary. The court will consider what Tom ought to contribute, how established the relationship is, and Sarah's remaining needs.
• The outcome could be anything from no change to a full discharge. Both of them face cost, delay and uncertainty.

Emma and David agreed a full clean break. Emma received a larger share of the equity in the family home in place of ongoing maintenance, and all income and capital claims were dismissed. Two years later, David moves in with a new partner, and later Emma does too.

• Neither relationship has any effect on their financial order.
• There is nothing to vary, nothing to monitor and nothing to argue about.

Same life event, completely different consequences. The difference was decided years earlier, at the drafting stage.

Drafting It Right: Cohabitation Clauses in a Consent Order

Where ongoing maintenance is genuinely needed, couples can agree at the outset exactly what happens if the recipient cohabits. Because a consent order reflects the parties' agreement, it can provide that maintenance ends on the earliest of several events, for example death, remarriage, a new civil partnership, a fixed end date, or cohabitation as defined in the order.

The word "cohabitation" on its own is a trap. Without a clear definition, the parties can end up in court arguing about whether staying over four nights a week counts. A well-drafted clause should address:

To see how those elements fit together, here is an example of how such a provision might read. The bracketed parts are the points the parties would need to agree.

Mesher orders deserve a special mention. If your settlement defers the sale of the family home, cohabitation by the occupying party is commonly included as a trigger event for sale. Our guide to Mesher and Martin orders explains how those triggers work in practice.

Moving In With Someone Before Your Consent Order Is Sealed

What if the new relationship begins before the financial settlement is finalised? Here the rules shift again.

Cohabitation does not bar your financial claims in the way remarriage can. However, the court assesses the settlement by reference to each party's current and foreseeable circumstances under s.25 MCA 1973, including the financial resources each party has or is likely to have. A new household can affect how the court views your housing and income needs.

This is also where honesty becomes non-negotiable. Form D81 asks directly about each party's plans to marry, form a civil partnership or cohabit, and both parties are under a duty of full and frank disclosure. Answering that question accurately is an obligation, not a matter of choice. The judge relies on it to decide whether the agreement is fair.

Why a Clean Break Removes the Question Entirely

Section 25A MCA 1973 requires the court to consider whether a clean break is appropriate in every case. For many couples it is, and cohabitation is one of the clearest illustrations of why. With no ongoing maintenance, a new relationship on either side has no financial consequences for the other. There is no need to monitor, no need to define "living together", and no need to return to court.

That said, a clean break is not right for everyone. Where there is a significant income gap, or where one party's earning capacity has been reduced by years of childcare, ongoing maintenance may be fairer and more realistic. Our comparison of spousal maintenance and clean break sets out the factors to weigh. If maintenance is part of your agreement, a clear cohabitation clause is the next best thing to certainty.

Deciding now or disputing later: the difference in practice

Settling these questions when you draft your order is not just less stressful. It is also a fundamentally different process from resolving them after a dispute has arisen.

Clear terms cannot rule out every future disagreement, and the court retains its discretion over any order it approves. But they leave far less room for one.

Frequently Asked Questions

Does spousal maintenance automatically stop if my ex moves in with a new partner?

No. Under s.28(1)(a) MCA 1973, maintenance ends automatically only if the recipient remarries or forms a civil partnership. Cohabitation ends it only if your consent order contains a clause saying so. Otherwise the paying party must apply to the court to vary the order.

How long do you have to live together before it counts as cohabitation?

There is no fixed statutory period. If your order defines cohabitation, that definition applies. If it doesn't, the court looks at the overall picture on a variation application, including how long the relationship has lasted, whether finances are shared and how settled the household is.

Can my ex's new partner's income be taken into account?

Indirectly, yes. The new partner has no legal duty to support your former spouse, but the court can consider the contribution that partner ought reasonably to make to household costs when deciding whether maintenance should be reduced or ended.

Can I stop paying maintenance if my ex is living with someone?

No, not without an agreed variation sealed by the court or a court order. Stopping payments on your own creates arrears that can be enforced against you. Keep paying while you seek to vary the order.

Does cohabitation affect a clean break order?

No. A clean break dismisses ongoing income and capital claims between you and your former spouse. A new relationship on either side has no effect on a sealed clean break order.

Does living with a new partner affect child maintenance?

Child maintenance is a separate system from spousal maintenance and is usually handled through the Child Maintenance Service. It is calculated on the paying parent's income, so the receiving parent's new partner does not form part of that calculation.

Should I mention a new relationship when completing Form D81?

Yes. Form D81 asks directly about each party's plans to marry, form a civil partnership or cohabit, and you are under a duty of full and frank disclosure. Leaving it out risks the order being challenged and set aside later.

This article is provided for general informational purposes only and does not constitute legal advice. It relates to the law of England and Wales only. ConsentReady is an automated legal technology platform and document generation tool. It is not a regulated law firm and does not provide legal advice under the Legal Services Act 2007. Using this platform does not create a solicitor-client relationship. The outcome of any application is at the discretion of the court. If your circumstances are complex, or if you and your former spouse do not agree, you should seek independent legal advice. Court fees are correct as of the HMCTS fee schedule (EX50) effective 13 July 2026 and may change.