Mirror wills are a common choice for couples who want their wishes to follow a similar pattern. In a straightforward example, each person leaves their estate to the other and, after the second death, to the same children or other beneficiaries.
That can sound simple, but the name can create misunderstandings. Mirror wills are not one shared document, and they do not normally lock both people into the same plan forever. Each person has their own will and remains free to review or change it while they have the mental capacity to do so.
This guide explains how mirror wills work in England and Wales, when they may be suitable and when a more tailored approach may be worth considering.
What are mirror wills?
Mirror wills are two separate wills made by a couple with matching or closely similar terms.
A common arrangement is:
- Person A leaves their estate to Person B.
- Person B leaves their estate to Person A.
- Each will names the same people, such as children, to inherit if the other person has already died.
The wills may also appoint the same executors and include similar arrangements for personal possessions, substitute beneficiaries and funeral wishes.
Despite the word “mirror”, the documents do not have to be identical. Each person may own different assets, want to make an individual gift or choose different executors. The important point is that the overall plans broadly reflect one another.
Are mirror wills one joint will?
No. Each person signs a separate will and each will stands on its own.
This distinction matters because each partner remains the person making their own will. They must understand and approve its contents, sign it using the required formalities and make their own decisions without pressure.
A couple can discuss their plans together, but each person’s will records their own wishes.
Can one person change a mirror will?
Yes. With ordinary mirror wills, either person can usually change or revoke their own will, provided they have the mental capacity to do so and complete the change correctly.
That remains the position after the first person dies. The survivor may decide to update their will because their family, property, finances or wishes have changed.
For example, the survivor might:
- appoint a different executor;
- change a cash gift;
- include a new grandchild;
- remove a beneficiary following a breakdown in the relationship;
- make provision for a new spouse or partner; or
- change how the remaining estate is divided.
This flexibility can be useful. Life does not stand still, and a will should be capable of reflecting new circumstances.
However, it also means a standard mirror-will arrangement does not guarantee that the beneficiaries named by the couple will eventually receive the estate after the second death.
Mirror wills and mutual wills are not the same
Mirror wills are sometimes confused with mutual wills.
Ordinary mirror wills simply contain similar wishes. Mutual wills involve an additional binding agreement about how the wills will operate and whether they can be changed. Mutual-will arrangements are unusual and can lead to complicated disputes about what was agreed and whether the agreement remains enforceable.
Couples should not assume that matching wording creates a mutual will or a binding promise. Where somebody wants to restrict what may happen after the first death, specialist legal advice may be needed.
When can mirror wills work well?
Mirror wills can be suitable where a couple’s circumstances and intentions are broadly aligned.
They may work well when:
- both people want the survivor to inherit first;
- they agree about who should inherit after the second death;
- their family arrangements are straightforward;
- they understand that each will remains separate and changeable;
- they have considered how jointly owned property will pass; and
- they are comfortable with the survivor having control of inherited assets.
For many married couples, civil partners and unmarried couples, this provides a clear and practical starting point. The suitability of the arrangement still depends on the couple’s assets, family and wider intentions.
When might a more tailored approach be needed?
A standard “everything to each other, then to the children” structure is not always enough.
Blended families and second marriages
Extra care is often needed where either person has children from an earlier relationship.
If the first person leaves everything outright to the survivor, those assets normally become the survivor’s. The survivor may use them, give them away or change their own will. Their circumstances may also change through remarriage, new relationships, financial decisions or later-life needs.
This does not mean the survivor has done anything wrong. It means the original couple should understand what an outright gift does and does not achieve.
Where the aim is to support a spouse or partner while also making particular provision for children, tailored estate planning may be appropriate. Possible arrangements can involve trusts or rights connected with property, but the legal, tax and practical effects depend on individual circumstances and require careful consideration.
Different beneficiaries or unequal contributions
A couple may have different priorities even if they generally want to provide for one another.
One person may want to leave a gift to a charity, support a relative, recognise a larger contribution to a property or divide the estate differently between children. The wills can still follow a similar structure without pretending that every detail is the same.
A vulnerable beneficiary
A beneficiary may be disabled, financially vulnerable or receiving means-tested support. Leaving assets outright may not always be the most suitable approach.
These situations require tailored advice because trust, tax, benefits and management considerations may all be relevant.
Business, agricultural or overseas assets
Business interests, farms, foreign property and assets held under another country’s legal system can make estate planning more complex.
Additional legal, tax or regulated financial advice may be needed so that the wills work alongside ownership agreements, succession plans and the rules applying to those assets.
How property ownership affects mirror wills
A will only controls assets that pass under it. The way a jointly owned home is held can therefore make a significant difference.
Joint tenants
Where a property is owned as joint tenants, the deceased owner’s interest normally passes automatically to the surviving owner. It does not pass under the deceased person’s will.
Tenants in common
Where a property is owned as tenants in common, each owner has a separate share. That share can pass under their will.
Mirror wills do not themselves change how a property is owned. Before relying on a will to deal with a share of a home, it is important to establish the current ownership position and consider whether the will and property arrangements work together.
What happens if the survivor remarries?
Under the current law in England and Wales, marriage or the formation of a civil partnership will usually revoke an existing will unless it was made in contemplation of that particular marriage or civil partnership in the required way.
This applies to each mirror will separately. If the surviving partner later marries and does not make suitable arrangements, the will they made with their former partner may no longer be valid.
Divorce or dissolution has a different effect. It does not usually revoke the whole will, but provisions involving the former spouse or civil partner are generally treated as though that person had died. A review is therefore sensible after any major relationship change.
Do mirror wills protect an inheritance from later-life care costs?
No will can guarantee that assets will be preserved or that later-life care costs will be avoided.
The survivor may need to use their assets for ordinary living expenses, housing, care or other needs. Any planning connected with later-life care costs depends on individual circumstances and must not be based on artificial arrangements intended to avoid legitimate charges.
The sensible approach is to understand the ownership, tax, care and family implications and obtain tailored legal and regulated financial advice where appropriate.
Mirror wills do not give authority during your lifetime
A will only takes effect after death. Naming your partner or children as executors does not allow them to manage your money, property, health or care decisions while you are alive.
That requires separate planning, usually through Lasting Powers of Attorney. Our guide explaining why your children cannot automatically make decisions for you covers this distinction in more detail.
Questions to discuss before making mirror wills
A useful conversation should cover more than who inherits first. Consider asking:
- Who should inherit after both of us have died? Decide whether children, stepchildren, grandchildren, charities or other people should benefit.
- What should happen if a beneficiary dies before us? Clear substitute provisions can help avoid uncertainty.
- Are we comfortable with the survivor owning everything outright? Think about the freedom this gives the survivor and whether it matches both people’s intentions.
- How is our home owned? Check whether it is held as joint tenants or tenants in common.
- Do either of us need individual gifts or different provisions? Matching wills do not need to ignore personal wishes.
- Who should act as executors? Choose people who are trustworthy, organised and willing to take on the role.
- When will we review the wills? Agree to revisit them after major family, financial, property or relationship changes.
How often should mirror wills be reviewed?
Mirror wills should not be signed and forgotten.
A review is sensible after:
- retirement;
- marriage, civil partnership, separation or divorce;
- the death of a partner, executor or beneficiary;
- the birth of children or grandchildren;
- a new relationship or change within a blended family;
- buying, selling or changing ownership of property;
- a substantial financial change; or
- a change in what either person wants the wills to achieve.
Our guide to reviewing your will after retirement explains the main points worth checking as life changes.
Making mirror wills in Poole, Bournemouth or Christchurch
Brooks Wills helps couples across Poole, Bournemouth, Christchurch, wider Dorset and West Hampshire understand whether mirror wills suit their circumstances.
We take time to understand your family, property and priorities, explain the available options in plain English and prepare each will as a separate document reflecting the wishes of the person making it.
Brooks Wills is a member of the Institute of Professional Willwriters and the Society of Will Writers.
Call, message or book a consultation to discuss mirror wills or review your existing arrangements.
Simplifying legacies, securing tomorrow.
This article provides general information for England and Wales. It is not legal, tax or financial advice. The appropriate arrangements depend on individual circumstances.
Frequently asked questions
Are mirror wills legally binding on both people?
Each mirror will is a separate legal document. Ordinary mirror wills do not usually create a binding promise that neither person will change their will. Either person can generally update or revoke their own will while they have the mental capacity to do so.
Can the surviving partner change their mirror will?
Yes. With ordinary mirror wills, the survivor can normally make a new will. This may be necessary after changes to family, property, finances or relationships.
Do mirror wills have to be identical?
No. The overall intentions may match, while individual gifts, executors or other details differ. Each will should accurately reflect the wishes and circumstances of the person making it.
Are mirror wills suitable for unmarried couples?
They can be. Unmarried partners do not automatically have the same inheritance position as spouses or civil partners under the intestacy rules, so making valid wills can be particularly important. Property ownership and pension or nomination arrangements should also be considered separately.
Do mirror wills cover children from previous relationships?
They can name children and stepchildren, but a simple gift of everything to the survivor does not guarantee that those beneficiaries will inherit after the second death. Blended-family arrangements should be considered carefully.
What is the difference between mirror wills and mutual wills?
Mirror wills contain similar provisions but remain independently changeable. Mutual wills involve an additional agreement intended to restrict later changes. Mutual-will issues are complex and specialist legal advice may be required.
