The short answer
Mirror wills are two separate wills that contain similar or reciprocal wishes. They are common for couples, but each person's will remains their own document and can normally be changed or revoked while that person has capacity. Mutual wills are different and can raise complex questions about binding agreements and later changes.
What does a mirror-will arrangement look like?
A straightforward married couple might each appoint executors, leave the estate to the surviving spouse first and then provide a fallback for children if the spouse has already died. The two documents may look very similar, but there are still two testators and two wills.
Can one person change a mirror will?
Ordinarily, yes. Similar wording does not by itself create a permanent promise never to alter the will. Circumstances can change after the first spouse dies, and the survivor's later estate plan may change too.
What are mutual wills?
“Mutual wills” can refer to arrangements where two people make wills pursuant to an agreement concerning their testamentary dispositions. The legal consequences can be much more complicated than simply signing two similar documents, including potential equitable obligations after one person dies.
If you genuinely want a binding arrangement restricting future testamentary freedom, use a solicitor. Do not try to convert a pair of standard templates into mutual wills by adding a sentence yourself.
When are straightforward couple wills a good fit?
- Both people have aligned, conventional wishes.
- The family structure is straightforward.
- There is no need to bind the survivor permanently.
- There are no significant business, farm, cross-border or trust issues.
- There is no expected family dispute.
Which MakeAWILL.ie couple product applies?
Our married-couple packs are designed for defined straightforward situations. They are not mutual-will agreements.
Married Couple Will - No Children - €19
Irish Will for Parents with Minor Children - €39
Married Couple Will - Adult Children - €39
When should couples use a solicitor?
Use bespoke advice for blended families, children from previous relationships, a wish to restrict the survivor's later choices, business/farm succession, foreign assets, substantial tax planning or complex trusts.
See Blended Families and Wills in Ireland.
Do both wills need their own witnesses?
Each will must satisfy the Irish execution requirements. The documents should be treated as two separate wills even when signed around the same time.
See Who Can Witness a Will in Ireland?
Important: This is general information. If your intention is legally to bind the survivor's future testamentary choices, obtain specialist legal advice before signing.
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