Not every failed will fails dramatically. Alongside the capacity and influence battles sits a quieter category: wills that fail on technicality — the formalities the Succession Act makes non-negotiable, the witness who shouldn’t have witnessed, the marriage that silently revoked, the original that can’t be found. Technical grounds are unglamorous and utterly decisive — and they are checked in minutes by someone who knows where to look.
The Failure Modes
- Formalities (s.78): writing, signature at the end, two witnesses present at the same time, each signing in the testator’s presence — the two-witnesses-together rule being where kitchen-table wills die most often;
- The witness-beneficiary rule (s.82): the will stands, but a gift to an attesting witness or their spouse is void — the classic DIY error, discovered years later at probate;
- Revocation by marriage (s.85): marriage revokes a prior will unless made in contemplation of it — the least-known rule in the field, rewriting blended-family estates regularly;
- Alterations and revocations: the strict rules governing changes after execution, destruction with intent, and revival — where informal amendments go to die;
- The lost will: the presumption of destruction where an original last in the testator’s possession can’t be found — rebuttable, with copies admissible to proof where the evidence trail supports it.
What Failure Actually Produces
A will that fails entirely resurrects the previous valid will — or, where none exists, sends the estate to intestacy’s fixed rules: the “what happens if we win” analysis that precedes every technical challenge, because invalidating a will only helps people the fallback position favours. Partial failures (the voided witness gift, the failed alteration) redraw the arithmetic within a standing will. Timing follows the same law as every validity question: strongest before the grant, where a caveat preserves everything — and where the doubt is about which document governs at all, citations and the subpoena to lodge testamentary documents flush out the wills people are sitting on. The wider validity grounds — capacity, influence, knowledge and approval — sit at their own page.
Time limits in estate disputes are among the strictest in Irish law — a section 117 claim must be brought within six months of the grant issuing, and the court cannot extend it. Other claims run on their own clocks, some short, some with extensions. Never assume you are out of time, and never assume you have time: take advice promptly. Nothing on this page is legal advice for your situation.
Doubts About the Document Itself?
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