Mirror Wills UK: A Complete Guide for Couples (2026)
Mirror wills are two separate wills made by a couple with matching terms — typically each leaving everything to the other, then to their children. They are the standard choice for married couples, civil partners, and cohabiting couples in England and Wales.
WillSafe's Mirror Wills Kit costs £59.99 for both wills — compared to £300–£600 or more at a solicitor.
Mirror Wills Kit — £59.99
Complete template set for both partners. Instant download. Written for couples in England & Wales.
What are mirror wills?
Mirror wills are two independent wills made at the same time by a couple, using matching (mirrored) terms. The most common arrangement is:
- Partner A leaves everything to Partner B; if B has already died, to their children equally.
- Partner B leaves everything to Partner A; if A has already died, to their children equally.
Because they are two separate legal documents, each partner can change or revoke their own will at any time — this is an important distinction from mutual wills (see FAQ below).
Who needs mirror wills?
Married couples and civil partners
Marriage and civil partnership give you some automatic inheritance rights under the intestacy rules, but a will is still essential to control exactly who gets what, who acts as executor, and what happens to children. Mirror wills ensure both partners are protected and their wishes are legally recorded.
Cohabiting couples — urgent
There is no such thing as a 'common-law spouse' in England and Wales. If you live with your partner but are not married or in a civil partnership, and you die without a will, your partner has no automatic right to inherit anything. The intestacy rules pass your estate to blood relatives — parents, siblings, even cousins — before your partner sees a penny. Mirror wills are not optional for cohabiting couples; they are essential.
Parents with children
Mirror wills let you name a guardian for minor children, specify what happens to the estate on the second death, and set up testamentary trusts to hold assets for children until they reach adulthood.
How mirror wills work
Each will is a separate legal document. Both wills are made at the same time, but they are not joined — each partner owns and controls their own. Here is what happens in practice:
- First death: The surviving partner inherits the deceased's estate (as stated in their will). The survivor becomes the sole legal owner of all assets.
- Second death: The combined estate passes to whoever the second will names — usually children, or other named beneficiaries.
- Simultaneous death: Both wills should include a survivorship clause (e.g. 'my partner must survive me by 28 days to inherit') and a clear fallback — otherwise the Commorientes Rule applies and assets pass in an unintended order.
Mirror wills vs mutual wills
Mirror wills are independent — either partner can change their will at any time. Mutual wills include a legally binding contract preventing either partner from changing their will after the first death. Mutual wills are rare, legally complex, and generally not recommended without specialist advice. For most couples, mirror wills are the right choice.
WillSafe vs a solicitor: mirror wills cost comparison
| Feature | WillSafe Mirror Wills Kit | High-street solicitor |
|---|---|---|
| Cost (both wills) | £59.99 | £300–£600+ |
| Time to get | Instant download | Days to weeks |
| Written for England & Wales | Yes | Yes |
| Survivorship clause included | Yes | Yes (if requested) |
| Guidance notes | Included | Explained in meeting |
| Legal advice | No (self-help) | Yes |
| Best for | Straightforward couples' estates | Complex estates, trusts, disputes |
WillSafe is a self-help document provider, not a solicitor. Our template is suitable for most straightforward couples' estates. If your situation involves trusts, business assets, foreign property, or potential disputes, we recommend getting solicitor advice.
How to make mirror wills: step-by-step
- Agree your wishes together. Decide what happens on the first death, the second death, and in the event you both die at the same time. Agree on guardians for any minor children.
- Download the Mirror Wills Kit. Get the WillSafe Mirror Wills Kit (£59.99). You receive one template for each partner, plus guidance notes.
- Complete each will. Fill in both documents following the guidance. Name your executors, beneficiaries, and any specific gifts. Add a guardian for minor children if needed.
- Sign in front of two witnesses. Each will must be signed by the testator in the presence of two independent adult witnesses, who also sign. Witnesses must not be beneficiaries (or married to one). Both partners sign their own will separately.
- Store the originals safely. Keep the signed originals somewhere fireproof. Tell your executors where they are. Consider a solicitor's storage service or a dedicated will storage provider.
Frequently asked questions
What are mirror wills?+
Mirror wills are two separate wills made by a couple at the same time, using matching (mirrored) terms. Typically, each partner leaves their entire estate to the other, and if the other partner has already died, to their children or other named beneficiaries. Because they are two separate legal documents, each partner can change or revoke their will at any time without the other's consent.
Do unmarried couples need mirror wills?+
Unmarried couples — including cohabitees who have lived together for decades — have no automatic inheritance rights in England and Wales. If you die without a will, the intestacy rules apply and your partner could inherit nothing, regardless of how long you have been together. Mirror wills are strongly recommended for any couple who is not married or in a civil partnership.
What is the difference between mirror wills and mutual wills?+
Mirror wills are two independent documents — each partner can change or revoke their own will at any time. Mutual wills include a binding contractual agreement that neither partner will change their will after the first partner dies. Mutual wills are very rare and legally complex. For most couples, mirror wills are the right choice.
Can my partner change their mirror will after I die?+
Yes. Unless your wills include a mutual wills clause (which creates a legally binding contract), either partner can revoke or change their will at any time, including after the first partner has died. This means a surviving partner could, for example, write a new will leaving the estate to a new partner. If this concerns you, speak to a solicitor about whether a trust or mutual wills clause is appropriate.
How much do mirror wills cost?+
A solicitor will typically charge £300–£600 or more for a pair of mirror wills. WillSafe's Mirror Wills Kit costs £59.99 for both documents — a complete, downloadable template set written for couples in England and Wales, with guidance notes included.
Are mirror wills legally valid in England and Wales?+
Yes. Mirror wills are ordinary wills and are subject to the same validity rules as any other will under the Wills Act 1837. Each will must be signed by the testator in the presence of two independent witnesses, who also sign. Witnesses must not be beneficiaries or the spouse or civil partner of a beneficiary.
What happens if both partners die at the same time?+
If it is not possible to establish who died first, the Commorientes Rule (s184 Law of Property Act 1925) applies — the older person is presumed to have died first. Your mirror wills should include a survivorship clause (for example, 'my partner must survive me by 28 days to inherit') and a clear fallback plan, typically naming children or other beneficiaries.
Related guides
- Do I need a will? UK guide
- Wills for cohabiting couples UK
- Intestacy calculator: who inherits if you have no will?
- Mirror wills explained (detailed overview)
- Mirror wills vs a single joint will
- Executor duties UK: complete checklist
Ready to make your mirror wills?
The WillSafe Mirror Wills Kit gives you everything you need — a complete, legally compliant template set for both partners, with guidance notes. Download instantly for £59.99.
Self-help information only. WillSafe UK is operated by Richard Wood, trading as WillSafe. We are not solicitors and we do not give legal advice. This guide covers the law in England & Wales. A will document template is a self-help product; its legal validity depends on correct completion and proper execution (signing and witnessing). For complex estates, cross-border assets, or potential disputes, please consult a qualified solicitor. See our full disclaimer.