Testamentary Capacity & Dementia Wills

Ireland’s ageing means more wills made in cognition’s long twilight — and more families staring at the same question: could they really have made this? The law’s answer is more precise than the folklore in both directions: a dementia diagnosis invalidates nothing by itself, and proves nothing safe by its absence. The test is specific, the timing is everything, and the evidence is assembling right now in files someone should be preserving.

The Test, Precisely

Three understandings, held at the moment of execution: the act — making a will and its effect; the property — in broad strokes, not balance-sheet detail; the claims — who might expect to benefit, whether or not the testator then chooses them — free of any disorder of mind poisoning those specific judgments. Two features decide real cases: capacity is time-of-execution specific (that day, in that office — lucid intervals count, decline before and after is context not conclusion) and task-specific (failing at daily logistics is not failing this test). Which is why the diagnosis opens the inquiry and never closes it — the wider validity landscape sits at the practice page.

The Evidence That Decides

Four sources, assembled in every serious case: the medical record around execution — notes, prescriptions, cognitive assessments, the GP’s observations; the drafting solicitor’s file — attendance notes, whether the testator was seen alone, whether the “golden rule” assessment was sought for an elderly or ill client (guidance not law, but a followed rule builds a fortress and an ignored one builds a case); the witnesses to the season — family, carers, neighbours who saw the person that spring; and the pattern — how this will departs from earlier wills and long-stated intentions, and who benefited from the departure (where the procurer and the beneficiary are the same person, the knowledge-and-approval doctrine joins the capacity question). The burden architecture rewards assembly: real doubt raised puts capacity to affirmative proof.

Preserve First, Decide Third

Records assembly takes weeks; the caveat that holds the grant open takes days — so real doubt sequences as: preserve (the caveat, before a grant issues), investigate (the files, obtained through the established machinery), then decide, on evidence rather than suspicion, with the costs-and-prospects assessment in writing. Suspicion alone starts nothing well; suspicion plus the assembled record is either a case or honest closure — both outcomes worth having.