What is a zeroed-out GRAT?

A zeroed-out GRAT is structured so the annuity payments back to the grantor equal the full value of assets transferred plus the IRS hurdle rate interest. This means zero gift tax is owed upfront. Any asset growth above the hurdle rate passes to heirs tax-free.

What happens if I die during the GRAT term?

If you die before the GRAT term ends, part or all of the trust assets revert to your taxable estate. This is why most advisors recommend short terms (2 years) and rolling GRATs — to minimize mortality risk.

What is the IRS 7520 rate and why does it matter for GRATs?

The 7520 rate is the IRS minimum assumed rate of return for trusts, updated monthly. A GRAT only transfers wealth tax-free on growth that exceeds this rate. Lower 7520 rates make GRATs more powerful because the hurdle is easier to beat.

estate Audience: high income 6 min read

Grantor Retained Annuity Trusts (GRATs) for Estate Splitting

The strategy Zuckerberg and the Waltons use to transfer billions tax-free. How a GRAT freezes your estate value.

Last updated on March 12, 2026

When you have $20M+, your biggest expense isn’t Income Tax. It’s Estate Tax (40% on everything over the exemption). If you are not sure whether estate taxes apply to you, start with our estate tax basics primer. The GRAT is a tool to move asset growth out of your estate.

Key Takeaways

Mechanics: You put assets into a trust. The trust pays you an annuity back for 2 years.
The Hurdle: The trust must beat the IRS 'Hurdle Rate' (7520 rate).
The Win: Any growth ABOVE the hurdle rate goes to your kids tax-free.
The Risk: If you die during the term (2 years), the assets go back to your estate. So keep terms short.

Example: The Pre-IPO Stock

You put $1M of startup stock into a GRAT.
IRS Rate (Section 7520 rate) is 4%.
You agree to take back $1M + 4% interest over 2 years.
Scenario: The IPO happens. Stock goes to $10M.
- You get back your $1.04M (Tax-Free return of principal).
- The remaining $8.96M stays in the trust for your kids.
- Estate Tax Saved: 40% of $8.96M = ~$3.5 Million.

It is a “Heads I win, Tails I tie” bet. If the stock drops, you just get the shares back. If it pops, the gain is shielded.

How a Zeroed-Out GRAT Works

Most estate planners recommend a “zeroed-out” GRAT. This means the present value of the annuity payments equals the value of the assets transferred, resulting in zero taxable gift.

Mechanics:

You transfer $1,000,000 in stock to a 2-year GRAT.
The IRS 7520 rate is 5.0% (for example).
The GRAT is structured to pay you back $1,000,000 + 5% annual interest over 2 years.
Because the present value of the annuity equals the initial transfer, there is zero gift tax and zero use of your lifetime exemption.
Any asset growth above 5% passes to beneficiaries tax-free.

The higher the 7520 rate, the harder it is to “beat the hurdle.” That’s why GRATs are most popular when interest rates are low.

GRAT Term Length and Mortality Risk

The biggest risk with a GRAT is dying during the term. If you die, the assets revert to your estate and you lose the estate tax benefit.

Common strategies:

Short-term GRATs: Use 2-year terms to minimize mortality risk.
Rolling GRATs: Every 2 years, create a new GRAT with the annuity payments from the previous GRAT. This compounds the strategy over time.
Multiple GRATs: Create several GRATs with different assets to diversify risk.

The shorter the term, the lower the mortality risk — but also the less time for assets to appreciate. Most ultra-wealthy families use 2-year rolling GRATs as the standard approach. For a broader overview of trust taxation and how trusts interact with income tax, see our guide.

Real-World Example: The Walton Family GRATs

The most famous GRAT users are the Walton family (Walmart heirs). In the 1990s and 2000s, they transferred billions in Walmart stock to GRATs. The stock appreciated far beyond the IRS hurdle rate, and the excess growth passed to heirs free of estate and gift taxes.

Estimated result: The Waltons avoided an estimated $3+ billion in estate taxes over decades by using rolling GRATs. The strategy was perfectly legal and IRS-approved.

This is not just for billionaires. Anyone with high-growth assets (startup stock, real estate, private equity) can benefit if their estate exceeds the exemption amount.

When NOT to Use a GRAT

GRATs are powerful, but they are not right for everyone:

Situation	Why a GRAT May Not Work
Assets don’t appreciate	If assets grow slower than the 7520 rate, nothing passes to heirs. You just get assets back.
Need liquidity	You must be able to receive annuity payments without disrupting your cash flow.
Estate below exemption	If your estate is under $13.99M (single, 2026), there’s no estate tax to avoid.
Short life expectancy	If you’re unlikely to survive the GRAT term, the strategy fails (assets return to estate).
Illiquid assets (e.g., real estate)	Paying the annuity with illiquid assets can trigger taxable sales or valuation issues.

GRATs are a tool for high-net-worth individuals with high-growth, liquid assets who expect to exceed the estate tax exemption.

2026 Estate Tax Exemption and the GRAT Window

For 2026, the federal estate tax exemption is $13.99 million (single) or $27.98 million (married). The top estate tax rate is 40% on amounts exceeding the exemption.

Critical: The current high exemption is set to sunset in 2026, reverting to approximately $7 million (adjusted for inflation) in 2027 unless Congress extends it. For full details on the expiring provisions, see our TCJA sunset 2026 guide. This creates a narrow window for wealth transfer strategies like GRATs.

If you expect your estate to exceed $7-14 million and have high-growth assets, 2026 may be the last year to execute a GRAT under the current favorable rules.

GRATs in the Estate Planning Toolkit

GRATs are most effective when combined with other estate strategies:

Gift Tax Coordination: GRATs interact with your lifetime gift tax exclusion. A zeroed-out GRAT uses none of it.
Capital Gains Strategy: When heirs inherit, they receive a step-up in basis. Understand the capital gains vs. ordinary income rules to model the full tax picture.
Charitable Remainder Trusts: If philanthropy is part of your plan, compare GRATs with other trust structures for combined tax and estate benefits. See our charitable giving strategies for options.
Other Trust Strategies: Compare GRATs with Intentionally Defective Grantor Trusts (IDGTs) and Qualified Personal Residence Trusts (QPRTs) for a complete estate tax planning toolkit.

How sharper.tax Helps

sharper.tax analyzes your uploaded return to identify whether your income and asset levels warrant advanced estate planning strategies like GRATs. We flag when estate tax exposure is growing faster than you might expect. Sophisticated tax planning used to require a high-end CPA --- we make it available for free.

Sources

The information above is educational and not tax advice.