Grantor Retained Annuity Trust (GRAT) Explained: How It Works and When It May Fit
A grantor retained annuity trust, usually called a GRAT, is an estate planning tool designed to pass future growth on assets to children or other beneficiaries while using little or none of your lifetime gift tax exemption. For Wisconsin business owners, executives with concentrated stock, and families holding assets they expect to appreciate, a GRAT may be worth discussing.
GRAT estate planning is as much an investment question as a tax question. Whether a GRAT works depends heavily on how the assets inside it perform, which is why the decision belongs inside your broader wealth plan.
Start Here: A Complimentary Wealth and Tax Review
Before evaluating any trust, it helps to see your full picture. Compound offers a complimentary, no-obligation wealth and tax review that may include:
Assets with growth potential: business interests, concentrated stock, or other holdings that may appreciate
Estate exposure: how your current balance sheet may interact with federal estate and gift tax rules
Cash flow: whether you can comfortably part with future growth on certain assets
Existing documents: wills, trusts, and beneficiary designations
Business plans: upcoming sales, recapitalizations, or ownership transitions
Request your wealth and tax review.
What Is a Grantor Retained Annuity Trust?
A GRAT is an irrevocable trust with a fixed term, often a few years. You (the grantor) transfer assets into the trust and retain the right to receive an annuity payment each year for the term. When the term ends, whatever is left in the trust passes to your beneficiaries, either outright or in further trust.
The key concept is the "hurdle rate." When a GRAT is created, the IRS assumes the trust assets will grow at a published interest rate. The value of your gift is calculated as the assets contributed minus the present value of the annuity you keep. Many GRATs are designed so the annuity roughly equals the full value contributed plus that assumed growth, making the taxable gift close to zero. This is often called a "zeroed-out" GRAT.
If the assets grow faster than the hurdle rate, the excess passes to your beneficiaries with little or no gift tax. If they grow slower, the assets generally come back to you through the annuity payments, and you are roughly where you started, less legal and administrative costs.
How a GRAT Affects Taxes
Several tax features shape GRAT estate planning:
Gift tax. The taxable gift is measured when the trust is created, so later appreciation above the hurdle rate is not counted as an additional gift.
Income tax. A GRAT is typically a grantor trust, which means you pay income tax on trust earnings. That can further reduce your taxable estate, but it requires cash flow planning.
Estate inclusion risk. If you pass away during the GRAT term, some or all of the trust assets may be included in your estate. Shorter terms are one way families try to manage this risk.
Cost basis. Assets passing to beneficiaries generally keep your original cost basis, so heirs may face capital gains tax if they later sell. This trade-off is worth modeling.
Because estate and gift tax rules have changed several times and may change again, tax planning and preparation that looks across multiple years is important when weighing a GRAT.
The Investment Side of a GRAT
Since results depend on performance above the hurdle rate, the choice of assets matters:
Assets with high growth potential. Interests in a private business, pre-liquidity company stock, or concentrated positions are often discussed.
Volatility can help and hurt. A volatile asset may produce strong excess growth in one GRAT and none in another. Some families use "rolling" GRATs, a series of short-term trusts, so a poor period in one trust does not offset a good period in another.
Valuation. Hard-to-value assets, such as business interests, may require a qualified appraisal.
Your remaining portfolio. Annuity payments return to you, so the rest of your high net worth investment management plan has to account for those inflows and for the income taxes you pay on trust earnings.
Wealth management and tax planning working together can help decide which assets fit a GRAT and how the rest of the portfolio supports your own lifestyle. To see how different growth assumptions may compound over time, try the Compound calculator. Results are hypothetical and for illustration only.
When Might a GRAT Be Worth Discussing?
A GRAT is often considered by people who:
Own a business that may grow in value before a future sale or transition. See tax planning before a business sale.
Hold concentrated stock with meaningful upside potential
Expect estate tax exposure and want to shift future growth to children
Prefer a strategy that uses little lifetime exemption
Can afford to give up the growth above the hurdle rate
A GRAT may be less useful when assets are unlikely to outperform the assumed rate, when the grantor's health makes surviving the term uncertain, or when stepped-up basis at death is a higher priority.
Coordinating With Your Estate Attorney
A GRAT must follow detailed legal and tax requirements, including fixed annuity terms and restrictions on additional contributions. It should be drafted by an estate attorney and coordinated with your other trusts and next generation business transition planning. Your wealth and tax advisors can model outcomes, track annuity payments, and help keep the trust administered correctly over its term. Families with complex holdings may also look at family office services in Wisconsin to keep everything coordinated.
Integrated Planning for Wisconsin Families and Business Owners
Compound works with business owners, executives, and families throughout Wisconsin, including Milwaukee, Madison, Green Bay, Appleton, Brookfield, Oshkosh, and Wausau, as well as surrounding areas. With wealth management, investment management, and tax planning together, GRAT estate planning can be evaluated alongside your portfolio, cash flow, and business plans rather than in isolation.
Thinking about shifting future growth to the next generation? Request a complimentary wealth and tax review.
Frequently Asked Questions
What is a grantor retained annuity trust?
A grantor retained annuity trust is an irrevocable trust that pays you a fixed annuity for a set term, then passes any remaining assets to your beneficiaries.
What happens if GRAT assets do not grow?
If assets do not outperform the IRS hurdle rate, they generally return to you through annuity payments, and little or nothing passes to beneficiaries. The main cost is legal and administrative expense.
What happens if I die during the GRAT term?
Some or all of the trust assets may be included in your taxable estate. Shorter or rolling GRATs are one way families try to manage this risk.
Who pays income tax on a GRAT?
A GRAT is typically a grantor trust, so you generally pay income tax on trust earnings during the term.
What is a rolling GRAT?
A rolling GRAT strategy uses a series of short-term GRATs, often funding each new trust with annuity payments from prior ones, to manage performance and mortality risk.
Compound is a registered investment adviser. Registration does not imply a certain level of skill or training. This article is for informational and educational purposes only and should not be construed as personalized investment, tax, or legal advice. Tax laws are complex and subject to change. Strategies discussed may not be suitable for everyone, and there is no guarantee that any strategy will achieve its objectives or reduce taxes. Calculator results are hypothetical, are not guarantees of future results, and do not reflect any actual investment. Investing involves risk, including possible loss of principal. Diversification does not ensure a profit or protect against loss. Please consult your tax, legal, and financial professionals before acting on any information in this article. For more information, see Compound's Form ADV, available at adviserinfo.sec.gov.
About Compound Wealth
Compound Wealth works with business owners, entrepreneurs, professionals, and families with increasingly complex financial lives. The firm brings together tax planning, wealth management, client accounting services, and business transition advisory to provide a coordinated planning experience. By evaluating multiple aspects of a client's financial picture together, planning discussions may become more structured and aligned with long-term goals.
