What is a Graduated Rate Estate and why does it only last 36 months?

A Graduated Rate Estate, or GRE, is the tax status a deceased person's estate can hold for a limited window right after death, letting the estate pay tax on the same graduated brackets an individual uses rather than at a single top rate. To qualify, the estate must arise on death, the deceased's Social Insurance Number must be provided on the estate's tax return, and only one estate per deceased individual can be designated a GRE.

The 36-month limit exists because the graduated-rate benefit was meant to give an executor reasonable time to gather assets, pay debts, and wind up the estate — not to create a permanent low-tax vehicle. Once 36 months have passed since death, the estate loses GRE status and, if it still holds property and continues filing returns, is taxed like any other trust: at the top marginal rate with no basic personal exemption.

For an estate that's taking longer than expected to settle — because of litigation, hard-to-value assets, or a delayed sale of real estate — this deadline matters for timing income, capital gains, and distributions. An executor should plan major transactions to fall inside the 36-month window wherever that's realistically possible.