The Ring That Rewrites the Will: Marriage, Divorce and Estate Planning in 2026

A will is often treated as the final word on a person's estate. In law, however, it is a document that can be undone by later events — and few events carry more legal consequence than marriage. In England and Wales, saying 'I do' can revoke an existing will automatically, even where the testator had no intention of displacing it. Divorce operates differently: it usually leaves the will in place but alters how it is read. For families reviewing their affairs in 2026, the distinction matters well beyond the wedding day.

Why marriage can override a signed will

Under section 18 of the Wills Act 1837, a will is revoked by the testator's marriage or civil partnership unless it was made in contemplation of that specific union. The exception is narrow. It is not enough for the will to refer generally to a future spouse or to leave assets to 'my partner'. The document must show that the testator was contemplating marriage or civil partnership to the particular person, and that the will was intended to survive the ceremony. A vague reference to a future wedding is unlikely to satisfy that test.

This rule is designed to protect the new spouse and the changed family circumstances that marriage brings. Its practical effect, however, can be severe. A parent who made a will years earlier may find that it no longer governs the estate. If no replacement will has been made, the intestacy rules will apply. The new spouse will usually have a significant entitlement, but children from an earlier relationship may receive less than the testator intended — or may have to wait for their inheritance. Executors named in the old will may no longer have authority to act.

Civil partnerships are treated in a similar way in England and Wales. Couples should therefore treat marriage and civil partnership as estate-planning events, not merely personal ones. A will made before the ceremony should be reviewed and, in most cases, replaced afterwards. Where there are strong reasons for an existing will to survive, specialist advice should be taken well before the wedding. An express contemplation clause, properly drafted and tailored to the facts, may preserve the document; a homemade attempt to achieve the same result is risky.

Divorce: the document survives, the meaning shifts

Divorce and annulment do not revoke a will in England and Wales. This is a common source of confusion. The will remains valid, but section 18A of the Wills Act 1837 provides that provisions in favour of the former spouse lapse unless a contrary intention appears. That can affect gifts to the former spouse, their appointment as executor or trustee, and other roles connected to the marriage. The rest of the will may continue to operate.

If the former spouse was the sole beneficiary, the estate may pass under the intestacy rules in part or in full. If they were one of several beneficiaries, the will may still govern the remaining gifts. The result can be a document that is technically valid but practically out of date. A former spouse may also remain named as guardian of minor children, or as a trustee in a structure that no longer reflects the family's intentions.

Remarriage is a further trigger. A new marriage will normally revoke any will made before it, including a will made after the divorce. Couples who marry after a divorce should therefore not assume that an earlier post-divorce will remains effective. The safe course is to make a new will after the ceremony and to review associated nominations, such as pensions and life insurance, at the same time.

Scotland and Northern Ireland: same question, different answers

The rules are not uniform across the UK. In Scotland, the general position differs from England and Wales: marriage or civil partnership does not automatically revoke a will. A will made before the ceremony may therefore remain valid. Divorce or dissolution can, however, remove provisions in favour of the former spouse or civil partner under the Succession (Scotland) Act 2016, subject to the terms of the will. Scots law also has its own rules on legal rights and legitim, which can affect what certain family members can claim.

In Northern Ireland, the position broadly mirrors England and Wales: marriage can revoke an existing will unless it was made in contemplation of that marriage, and civil partnership is treated similarly under the relevant legislation. Divorce does not revoke the will, but provisions in favour of the former spouse may lapse. Executors and families should confirm the current statutory position with a solicitor qualified in the relevant jurisdiction, particularly where assets, spouses or family members are connected to more than one part of the UK.

A pre-wedding checklist

• Decide whether the existing will should survive the ceremony. If it should not, make a new will before or shortly after the wedding.
• If the existing will is intended to survive, take legal advice on an express contemplation clause. Do not rely on general wording.
• Review guardianship arrangements for minor children, especially in blended families.
• Confirm who will act as executor and whether that person remains appropriate.
• Consider mirror wills for the couple, while recognising that each will is separate.
• Tell the executor where the will is stored and provide updated contact details.
• Review pension nominations and life insurance separately; these are not governed by the will.

A post-divorce checklist

• Retrieve the will and read it carefully. Do not assume that divorce has revoked it.
• Make a new will promptly, naming the intended beneficiaries and executor.
• Update pension nominations, death-in-service arrangements and life insurance.
• Review any trust or guardianship provisions involving the former spouse.
• Consider whether the family home, joint accounts or business interests need separate attention.
• If a new relationship or remarriage is planned, remember that marriage can revoke the new will in England, Wales and Northern Ireland.

What parents and executors should watch

Parents should not assume that a child's will remains current after a wedding. A change in marital status can alter the destination of family wealth, particularly where children from an earlier relationship are involved. Executors should check the date of the will against the date of any marriage or civil partnership before taking steps to administer the estate. Acting on a revoked will can create delay, expense and family friction.

In 2026, the old rule continues to catch families unawares. The remedy is not complicated: treat marriage, civil partnership, divorce and remarriage as moments to review the estate plan. A short conversation before the confetti falls is often enough to prevent a much longer one afterwards.

This article is general information and does not constitute legal advice. Jurisdiction-specific advice should be obtained before acting.