Glossary term
Grantor Retained Annuity Trust (GRAT)
A grantor retained annuity trust is an irrevocable trust that pays the grantor an annuity for a term and may pass remaining appreciation to beneficiaries.
Updated
Read time
What Is a Grantor Retained Annuity Trust?
A grantor retained annuity trust, or GRAT, is an irrevocable trust in which the grantor transfers assets to a trust and retains the right to receive annuity payments for a fixed term. If the trust assets outperform the assumptions used to value the retained annuity, remaining appreciation may pass to beneficiaries with reduced gift-tax cost.
GRATs are most often used in advanced estate planning for assets that may appreciate significantly. The structure is technical, but the basic idea is simple: the grantor keeps a scheduled payment stream, and the upside above that hurdle can move to the next generation.
Key Takeaways
- A GRAT pays an annuity back to the grantor for a stated term.
- Any remaining value after the annuity term can pass to beneficiaries or a remainder trust.
- The strategy works best when trust assets outperform the required valuation assumptions.
- If the grantor dies during the term, some or all of the trust assets may be included in the estate.
- GRATs require careful valuation, administration, annuity payments, and tax reporting.
How a GRAT Works
The grantor transfers assets to the GRAT. The trust then pays the grantor a fixed annuity amount each year during the trust term. The annuity is calculated using federal valuation rules, including the Section 7520 rate. At the end of the term, any remaining assets pass to the remainder beneficiaries, often children or trusts for their benefit.
A common design is a zeroed-out GRAT, where the retained annuity is structured so the taxable gift value is very small. The grantor is not giving away the entire starting value of the assets; the grantor is retaining a valuable annuity interest. The planning opportunity comes from appreciation above the assumed rate.
Where the Economics Come From
A GRAT is essentially a spread strategy. If the transferred asset grows faster than the hurdle built into the valuation, the excess can remain for beneficiaries. If the asset underperforms, the annuity payments may return most or all of the value to the grantor, and little may remain.
That makes asset selection important. GRATs are often considered for closely held business interests, concentrated stock positions, private-company shares, or other assets where the grantor expects appreciation. The strategy is less compelling when the asset is unlikely to outperform the required rate after costs and risk.
Key Risks
Mortality risk is central. If the grantor dies during the GRAT term, the intended transfer may be partly or fully pulled back into the taxable estate. That is why planners often discuss shorter GRAT terms, rolling GRATs, and matching the term to the grantor's health, age, and risk tolerance.
Administration risk also matters. The trustee must make annuity payments on schedule, value assets properly, maintain records, and follow trust terms. A GRAT is not a casual family transfer. It is a formal tax-sensitive arrangement that can lose effectiveness if treated informally. Illiquid assets can make this harder because the trust may need cash for annuity payments even when the underlying investment has not produced cash.
GRAT Versus Outright Gift
Approach | What transfers | Main tradeoff |
|---|---|---|
Outright gift | Full gifted asset value moves immediately | Uses gift-tax exemption or creates taxable gift exposure |
GRAT | Potential excess appreciation after annuity payments | Requires term survival, administration, and asset outperformance |
The GRAT can be attractive when the grantor wants to keep a payment stream and transfer upside, but it is not the right tool when the family needs simplicity or guaranteed transfer results.
The Bottom Line
A GRAT is an advanced estate-planning trust that converts asset appreciation into a potential wealth-transfer opportunity. Its success depends on investment performance, valuation assumptions, annuity compliance, the grantor surviving the term, and disciplined administration.