How a grantor retained annuity trust works
A GRAT is a way to pass the growth on a fast-appreciating asset to your children with little or no gift tax — as long as the asset grows faster than the IRS’s set interest rate while the trust runs. The main risk is simple: you have to outlive the trust’s term.
These are the questions that matter most when you’re looking at a GRAT.
What is a GRAT?
A GRAT is an irrevocable trust that holds a growing asset for a set number of years. While the trust runs, it pays you back an annual amount — called an annuity — equal to what you put in, plus an interest rate the IRS sets. Whatever growth is left in the trust when the term ends passes to your children. If the asset grew faster than that IRS rate, that extra growth is the tax-free win.
While the trust runs
You get paid back
Each year the trust pays you an annuity — your original value plus the IRS’s set interest rate — so you are not giving the asset away for nothing.
When the term ends
Your children get the growth
Anything left in the trust above what the IRS rate required passes to your children with little or no gift tax.
How does it avoid gift tax?
The trick is called “zeroing out” the GRAT. The annuity is sized so that, on paper, it pays you back your contribution plus exactly the IRS’s interest rate. That makes the value of your gift essentially zero — so you use little or none of your lifetime gift-tax exemption. This is the “heads I win, tails I don’t lose” part of the strategy.
If the asset grows fast
Your family wins
- Growth above the IRS rate stays in the trust
- That growth passes to your children free of gift tax
- You used little or no exemption to do it
If the asset underperforms
No harm done
- The trust simply pays everything back to you
- You get your asset back
- No gift was made and no exemption was wasted
What if I die during the term?
This is the one real risk. To make the strategy work, you have to outlive the trust’s term. If you die before it ends, most or all of the trust’s value is counted back in your estate, as if the GRAT had not happened — and the rest of your estate plan is unaffected.
How the term length is chosen
- Shorter terms, often 2 to 3 years, keep the risk of dying during the term low.
- Longer terms capture more growth but raise that risk.
- Some families pair a GRAT with a matching term life insurance policy, so if you die during the term the insurance replaces what comes back into the estate.
- GRATs can be repeated year after year — a “rolling” series — to capture growth in good years without a long commitment.
Without a GRAT
James gifts the stock outright
James Caldwell holds a large, fast-growing stock position. If he gives it to his children outright, he uses that full value of his lifetime gift-tax exemption up front — and if the stock later falls, he has spent exemption on value that vanished.
With a GRAT
James lets the growth pass
James puts the stock in a short GRAT. The trust pays him back his value plus the IRS rate; the growth above that passes to his children with essentially no gift tax and no exemption used. If the stock underperforms, he simply gets it back.
James and the Caldwell family are a composite example used to show how the planning works — not a real client.
Is a GRAT right for me?
Five short choices. Brent reads your answer back to you at the end.
A 30-second guided quiz. Get a personal read on whether a GRAT fits.
How Brent helps you
- Looks at whether your assets and timeline actually fit a GRAT before recommending one
- Sizes the annuity and term to balance the tax benefit against the risk of the term
- Coordinates with your CPA so the gift-tax return and valuation are done right
- Can set up a rolling series of GRATs to capture growth year after year
