Power of Appointment

A power of appointment is a right granted under a trust or will that lets its holder direct where certain property goes, within limits set by the document. The holder of the power does not own the property; they hold something more precise, the ability to choose among possible recipients. Powers come in two broad forms. A general power lets the holder appoint property widely, in many common-law systems even to themselves or their own estate. A limited (or special) power confines the choice to a defined class, such as the settlor's descendants. The breadth of a power can carry significant tax and legal consequences, which vary by jurisdiction, so trust documents define powers with care.

Why it matters for family offices

Trusts built to last generations face an obvious problem: the settlor cannot foresee the family that will exist in fifty years. Powers of appointment are the standard answer, building controlled flexibility into an otherwise fixed structure. A parent holding a limited power over a trust share can redirect wealth among their children as circumstances change, favouring a child with greater needs or steering assets into new trusts, all without amending the original document. Some trusts place this right with a power-of-appointment committee so it is exercised collectively rather than by one person. For families, powers are the pressure valve that lets a long-lived trust adapt; for trustees and family offices, they are terms that must be understood and tracked, because an exercised power can quietly redraw who ultimately benefits.

How it shows up in practice

Consider a dynasty trust that gives each of the settlor's children a testamentary limited power of appointment over their branch's share, exercisable by will among that child's own descendants. One daughter exercises hers to direct a larger portion to a son with long-term care needs. Nothing changes during her lifetime, but on her death the trust's beneficial map shifts. The practical burden falls on those keeping the records: the family office and trustee need to know which powers exist across the family's trusts, who holds them, what limits apply, and whether any have been exercised, since distribution planning, beneficiary reporting, and estate projections all depend on it. Families typically keep a register of powers alongside their entity and trust records for exactly this reason.