The assessment of testamentary capacity.

In the older generations, cognitive impairment and wealth are both increasing. Doctors routinely assess decisional capacity in health matters yet are less adept in the assessment of other domains. Recent New Zealand Court decisions will likely result in increased requests by lawyers for contemporaneous medical assessments of the capacity to make a will. The clinical assessment is underpinned by the legal test for testamentary capacity. A psychogeriatrican and a barrister explain the principles and the clinical application. Careful assessments could protect the older adult and minimise the risk of a contested will after death.