What is an irrevocable living trust?
In one paragraph
An irrevocable living trust is a legal entity created during the grantor's lifetime that permanently transfers ownership of assets out of the grantor's estate — making those assets unavailable to the grantor but protected from estate taxes and, in many states, Medicaid asset recovery.
What this actually means
A living trust is created while the grantor is alive, distinguishing it from a testamentary trust established by a will. Within living trusts, the critical distinction is revocability. A revocable living trust can be modified or dissolved by the grantor at any time — assets technically remain in the estate for tax and Medicaid purposes. An irrevocable living trust, once established, generally cannot be changed or revoked without beneficiary consent, but this permanence creates its primary benefits.
The Medicaid planning application is the context in which irrevocable trusts most frequently appear in personal finance literature. *How to Protect Your Family's Assets from Devastating Nursing Home Costs* by K. Gabriel Heiser addresses this directly: Medicaid, the joint federal-state program that funds long-term nursing care for those who qualify, has a look-back period — typically five years — during which asset transfers are scrutinized. Assets placed in an irrevocable trust more than five years before applying for Medicaid may not count against the applicant's asset limit, potentially preserving a family home or other assets for heirs rather than liquidating them to pay for care.
*The Medicaid Planning Handbook* by Alexander Bove covers the legal mechanics in greater depth. The book distinguishes between Medicaid-compliant irrevocable trusts (which meet specific statutory requirements) and general irrevocable trusts that may or may not achieve Medicaid protection depending on state law. The rules vary significantly by state, making this an area where the books provide frameworks rather than specific advice.
For estate tax purposes, assets in an irrevocable trust are excluded from the taxable estate — relevant for high-net-worth households, though federal estate tax thresholds are high enough that this affects a small minority of families. The estate planning books most useful for this topic recommend consulting an estate attorney before establishing any trust, as errors in drafting are difficult to correct after the fact.