Separation Agreement UK: Template for Married Couples and Civil Partners

A separation agreement is a written contract between spouses or civil partners who have decided to live apart. It does not end the marriage and it is not a court order. Instead it fixes the arrangements both of you have accepted: who stays in the family home and on what terms, who pays the mortgage, how much child maintenance changes hands, whether either of you pays maintenance to the other, and what happens to pensions and joint debts. Signed as a deed, as ours is, it is often called a deed of separation.

A judicial separation is a court order that leaves the marriage in place; a separation agreement needs no court at all. A prenuptial agreement is signed before the wedding and looks ahead to a breakdown that may never happen; a separation agreement deals with a breakdown that already has. A consent order is different again: the court's own order, made during the divorce, and the usual route to a final financial settlement. In practice couples sign the separation agreement first, live by it, and later ask the court to turn its terms into a consent order once the conditional order has been made.

For any separation agreement in the UK signed under English law, the starting point is section 34 of the Matrimonial Causes Act 1973 (for civil partners, paragraph 68 of Schedule 5 to the Civil Partnership Act 2004). Any clause that tries to stop either spouse applying to the court for financial orders is void, but the other financial arrangements remain binding. The court can also alter a maintenance agreement under section 35 if circumstances change. So the agreement binds you as a contract, yet it never removes the judge's discretion.

How much weight does it carry? In Edgar v Edgar [1980] 1 WLR 1410 the Court of Appeal held that a formal agreement, properly and fairly reached with competent legal advice, should not be displaced unless there are good and substantial grounds for concluding that holding the parties to it would cause injustice. The Supreme Court in Radmacher v Granatino [2010] UKSC 42 went further for nuptial agreements generally: the court should give effect to a nuptial agreement freely entered into with a full appreciation of its implications, unless it would not be fair to hold the parties to it. None of this means a judge is bound. Undue pressure, hidden assets, unmet needs of a child or a big unforeseen change can all justify departing from it.

Since 6 April 2022, divorce and dissolution are no-fault under the Divorce, Dissolution and Separation Act 2020: there must be at least 20 weeks between the application and the conditional order, then 6 weeks before the final order. A pension can be divided only by a pension sharing order made by the court, and the Child Support Act 1991 lets either parent ask the Child Maintenance Service for a calculation whatever you agreed. For tax, section 58 of the Taxation of Chargeable Gains Act 1992, as amended by the Finance (No. 2) Act 2023, treats transfers between separated spouses as giving rise to neither a gain nor a loss until the end of the third tax year after the tax year of separation, or until an earlier divorce order. The GOV.UK guidance on making a financial agreement legally binding with a consent order explains the court step.

The classic case is a couple who have agreed the essentials but are not ready to divorce. Some want to see whether the separation holds, others have religious reasons, and others cannot yet apply because the marriage is less than a year old. Without a written agreement, the spouse who moves out often keeps paying a mortgage on a house he or she no longer lives in, with no record of how those payments will count.

Couples who will divorce soon still need rules for the months in between, since the divorce alone takes at least 26 weeks. The agreement covers who lives where, who pays which bill and how the children divide their time, and later becomes the draft for the consent order.

Some couples never intend to divorce, and the agreement then stands on its own for years. Where one spouse will stay in the home with the children until the youngest finishes school, a deferred sale (often called a Mesher arrangement) needs careful drafting. If the home is rented, the tenancy may need a deed of assignment of tenancy to the partner who stays, with the landlord's agreement. And where a parent plans a holiday abroad with the children, a signed consent letter for a child travelling abroad avoids problems at the border.

The deed opens with recitals on the relationship, the separation date and the children, then states plainly that it is a contract, not a court order. Your intention about divorce is recorded in one of three ways (apply now, apply later, or no present intention), because it changes the stamp duty land tax clause.

• Disclosure is set out in two schedules: each of you lists income, savings, pensions and debts, and confirms that the other relies on it.
• For the home, you choose between a buy-out with a completion date and a fallback sale, an immediate sale, a deferred sale, keeping it in joint names for now, or no property at all. Any beneficial joint tenancy is severed, so a death before the sale does not hand the whole house to the survivor.
• Children get their own article on living arrangements, holidays, joint decisions and travel abroad, plus child maintenance with an annual review.
• If maintenance between you is agreed, it can run for a fixed term, until an event, or without a fixed end, with optional inflation indexation and automatic termination on remarriage or death.

Closing articles cover pensions, tax, wills, the Inheritance (Provision for Family and Dependants) Act 1975, reconciliation, mediation and execution as a deed. You can browse related deeds in our family and personal legal templates.

You start by saying whether you are married or civil partners, then give the date and place of the ceremony and the date you stopped living together as a couple. That separation date is not a formality: it sets the capital gains tax window. The questionnaire behind this separation agreement UK template then asks about your divorce plans, your children and maintenance, and hides any question that does not apply.

The home has its own branch. Choose a buy-out and you give the sum and the completion date; choose a deferred sale and you describe the event that triggers it and how the proceeds are split. Accounts, cars, pets and debts are described in your own words, and the last steps record legal advice and each person's finances. Every statutory reference switches automatically between the Matrimonial Causes Act and the Civil Partnership Act. When you finish, you download the deed, each take it to your own solicitor, and sign in front of an independent adult witness. If you need other documents at the same time, the full catalogue of UK legal documents lists them by subject.

The most expensive mistake is thin disclosure. A spouse who leaves out a pension or a bonus hands the other a ready argument for setting the agreement aside, sometimes years later. Pension values are the usual gap: quote the cash equivalent value, not what you paid in. Close behind comes signing without advice. Courts may give less weight to an agreement where one party had no solicitor, and one solicitor cannot act for you both.

Couples also agree a buy-out without checking that the lender will release the departing spouse from the mortgage. Spouses with no plan to divorce sometimes transfer the house expecting the stamp duty land tax exemption, which may not apply; take tax advice first. Others assume the agreement transfers the house, when the transfer needs a separate deed and registration at HM Land Registry. Many forget that separation does not change a will: an estranged spouse can still inherit under an old will or on intestacy until the divorce is final, so updating your last will and testament after separation belongs on the same to-do list. Finally, if you divorce, ask the court for a consent order so that the deal becomes final.