GRAT
A GRAT is an irrevocable trust into which the grantor transfers assets, retaining the right to receive a fixed annuity payment from the trust for a specified term of years. At the end of the term, the remaining trust assets pass to the named beneficiaries. The gift-tax cost of the transfer is the present value of the remainder, computed using the §7520 rate (the IRS-published interest rate for actuarial valuations).
GRATs are the workhorse of high-end estate planning. The structure exploits a single, simple arbitrage: appreciation above the §7520 rate transfers to beneficiaries gift-tax-free. If the §7520 rate is 5% and the GRAT-funded assets earn 8%, the 3% spread compounds to the beneficiaries over the term. A 'zeroed-out' GRAT — where the annuity payment exactly equals the asset value plus §7520 interest — produces a present-value remainder of zero, meaning no gift-tax cost regardless of the asset's eventual performance. The downside: if the assets fail to outperform §7520, the entire GRAT distributes back to the grantor and nothing transfers to beneficiaries. Failure costs are limited to the legal-and-administrative setup — typically $5,000–$15,000.
Rolling GRATs maximize the strategy. Each year, the grantor sets up a new GRAT funded with new assets, while annuity payments from the prior year's GRATs return to the grantor. Over a 5-year period with 5 overlapping GRATs at any time, the grantor effectively gets 5 independent shots at appreciation transfers. A subset of the rolling GRATs that hit (assets outperform §7520) deliver large transfers; the failures cost only the setup overhead.
The §7520 rate is the planning lever. Low §7520 environments (post-2020 era) made GRATs particularly powerful — the hurdle was easy to clear. Higher §7520 rates (post-2022) raised the hurdle but didn't kill the strategy; the calculus simply requires assets with higher expected returns. Concentrated low-basis stock pre-IPO is a classic GRAT funding asset; venture-stage equity can deliver 5x–20x returns over a 3-year GRAT term, transferring extraordinary value to beneficiaries with no gift-tax usage.
A = principal × r / (1 − (1+r)^−n)- A
- = annual annuity payment
- principal
- = GRAT-funded asset value at inception
- r
- = §7520 rate at funding
- n
- = term in years
Principal $5M, §7520 rate 5%, 3-year term. A = 5,000,000 × 0.05 / (1 − 1.05^−3) = 5,000,000 × 0.05 / 0.13616 = $1,837,000/year.Synthetic UHNW households should include GRATs at multiple stages of their term: newly funded, mid-term with annuity payments accruing, near-end-of-term with assets approaching beneficiary distribution. Assets inside GRATs should track origination basis (carryover), §7520 rate at funding, annuity schedule, and current asset FMV vs. annuity payments-to-date. Failed-GRAT scenarios (assets returned to grantor) should appear at realistic frequency.
Common pitfalls
- Setting up a GRAT with a §7520 rate higher than the realistic expected asset return — the strategy is unlikely to succeed.
- Forgetting the GRAT remainder allocation rules — non-grantor-trust treatment may inadvertently apply, complicating tax treatment during the term.
- Failing to include rolling structure when appropriate — single GRATs miss the diversification benefit of multiple uncorrelated bets.
- Underestimating the §2702 anti-Walton risk — the Walton case validated zeroed-out GRATs but the IRS has tested boundaries on aggressive structures.
Examples
Grantor funds GRAT with $5M of pre-IPO stock at §7520 rate of 5%. Term: 3 years. Annual annuity: $1.84M (computed to zero out the remainder). Stock 3x's during the term to $15M. After 3 years of annuity payments to grantor: $15M × (1+0.08)^3 ≈ $18.9M total trust value, minus $5.52M annuity returned to grantor = $13.4M to beneficiaries. Gift-tax cost: $0. The grantor 'used' nothing of their lifetime exemption on a $13.4M transfer.