Grantor Retained Annuity Trust (GRAT)

The GRAT is an estate planning vehicle specifically designed to exploit the difference between the actual investment return of transferred assets and the IRS assumed rate of return (the Section 7520 rate, set monthly at 120% of the Applicable Federal Rate). When a grantor transfers assets to a GRAT, the taxable gift is calculated as the present value of the remainder interest — the value passing to beneficiaries after the annuity payments. If the 7520 rate is set low enough and the annuity payments are structured to return most of the initial value to the grantor, the taxable gift approaches zero in what practitioners call a zeroed-out GRAT.

The fundamental bet is that the transferred assets will grow faster than the 7520 rate. If they do, the excess appreciation passes to beneficiaries free of gift and estate tax. If the assets underperform or the grantor dies during the GRAT term, the strategy fails — assets return to the grantor's estate and the only cost is the transaction expense and opportunity cost of time. This asymmetric risk profile (downside is failure, upside is tax-free transfer) makes GRATs particularly attractive in low-interest-rate environments and for volatile, high-growth assets.

A common refinement is the rolling GRAT strategy: instead of one long-term GRAT, the grantor creates a series of short-term GRATs (often two years), rolling the returned principal and gains into new GRATs each term. Each two-year term is a separate bet on performance. If one term is a loss, only that specific GRAT fails; prior successful terms have already transferred appreciation to beneficiaries. This approach, popularized after the Tax Court decision in Walton v. Commissioner (2000) validated zeroed-out GRATs, is now standard practice for the very wealthy.

GRATlimitations include the inability to use the annual exclusion gift tax exemption for GRAT remainder interests, the loss of the step-up in basis at death for assets removed from the estate, and the requirement that the grantor survive the GRAT term for the strategy to work. Congress has periodically proposed mandatory minimum ten-year terms and minimum taxable gift floors for GRATs, but these restrictions have not been enacted as of the current law.

GRATs are particularly effective for shares of closely held businesses, pre-IPO stock, and appreciated securities expected to continue growing. Family offices and sophisticated estate planners often run GRATs continuously, treating the strategy as an ongoing program rather than a one-time event.