IDGT — Installment Sale to Grantor Trust
A technique that moves your business or investment assets permanently outside your taxable estate without triggering any income tax on the transfer — by selling to a trust via promissory note instead of making a taxable gift.
When you give assets away to reduce your estate, you use your $15 million lifetime exemption. Once that exemption is gone, future gifts are taxed at 40%. For business owners with significant assets who want to transfer more than $15 million, or who want to preserve their exemption for other uses, the IDGT offers a different path: instead of gifting assets to a trust, you sell them to the trust via a promissory note — just like any seller might take back a note when selling a business.
The trust pays you back over time from the income the assets generate inside the trust. The assets legally move outside your estate. Because you are receiving payments back (not making a gift), you use very little of your lifetime exemption — only on a small "seed gift" needed to establish the trust's economic viability.
The trust is called "intentionally defective" because it is designed with a legal inconsistency. For estate tax purposes, it is a completed, irrevocable transfer — the assets are outside your estate. For income tax purposes, it is treated as if you still own the assets — meaning any income earned by the trust is taxable to you personally.
This "defect" creates the magic: because you are treated as still owning the trust for income tax purposes, selling assets to it is like selling to yourself. No capital gains are recognized on the sale, even if you are transferring highly appreciated property. The business interest worth $5 million with a $500,000 cost basis moves to the trust — and you do not recognize a $4.5 million capital gain on the transfer.
The trust pays you back through the promissory note. Everything the assets earn above the note's interest rate stays inside the trust permanently — outside your estate, compounding without estate tax. You receive your principal back plus interest. All the growth belongs to your beneficiaries.
Because you pay income tax on all the trust's earnings (as the grantor), and you receive nothing from those earnings, your annual income tax payments are effectively an additional transfer to the trust — free of federal income tax when requirements are met. You are shrinking your own estate by paying taxes, while the trust grows by the full amount of its earnings without reduction. Over many years, this "invisible gifting" through income tax payments adds significantly to the trust's total value beyond the original sale price.
- No income tax recognition on the transfer of appreciated assets — the grantor trust rules prevent gain recognition even on highly appreciated property. A $5M business interest with a $200K basis transfers without triggering $4.8M of capital gains.
- All future appreciation on transferred assets escapes estate tax permanently — from the transfer date forward, every dollar of growth belongs to the trust, not your estate.
- Preserves most of your lifetime exemption — only the seed gift (typically 10% of the transfer value) uses exemption. A $5M transfer uses $500K of exemption vs. $5M for a direct gift.
- Your annual income tax payments on trust earnings are additional tax-free transfers — you shrink your estate every year simply by paying the trust's income taxes.
- The promissory note payments you receive provide ongoing cash flow back to you — your financial position is not entirely depleted by the transfer.
- You pay income tax on trust earnings annually — all dividends, interest, and capital gains inside the trust appear on your personal return. This is the expected cost of grantor trust status — and also the hidden benefit.
- The seed gift uses lifetime exemption and requires Form 709 — typically 10% of the transfer value. Small relative to the total transfer, but it is a taxable gift that must be documented.
- If you die before the note is fully paid off, the outstanding note balance is included in your estate — you get credit for money you are still owed, which is fair, but it means partial estate inclusion during the note repayment period.
- The note must bear at least the IRS Applicable Federal Rate — a below-market interest rate would be treated as an additional gift, which could create unexpected gift tax consequences.
- This is an area where Congress has periodically proposed changes — the IRS has never formally blessed IDGT installment sales, and proposed regulations have been discussed. The strategy works under current law and has broad practitioner support, but it is one to monitor legislatively.
Economic modeling — is the timing right?
We model the IDGT's economics for your specific situation: the projected note payments, the trust's expected growth rate, how much appreciation would be captured inside the trust vs. returned to you via note payments, and how the structure interacts with your other estate planning. The IDGT works best when the transferred assets are expected to grow significantly above the note's interest rate — the spread between growth and interest is what stays in the trust.
Shurek — before any external costsEstate attorney drafts the trust document
The IDGT must be carefully drafted to be irrevocable (outside the estate) while maintaining grantor trust status (for income tax purposes). These two objectives create a precise technical requirement: the trust must contain specific "grantor trust triggers" — retained powers that cause grantor trust treatment — without rising to the level of control that would cause estate inclusion. This is technical legal drafting that must be done by an experienced estate planning attorney.
Estate attorney drafts — Shurek provides tax parameters and reviewsMake the seed gift to fund the trust
The trust must have some assets before you can "sell" to it — otherwise there is no economic substance to the transaction (you would be selling to an empty entity with no ability to repay). The seed gift — typically 10% of the intended sale value — is transferred to the trust as a gift. This gift uses lifetime exemption and triggers a Form 709 gift tax return filing requirement.
Shurek coordinates the transfer and prepares Form 709Execute the installment sale — promissory note signed
The business owner sells the remaining assets to the trust in exchange for a promissory note. The note must specify the principal amount, the interest rate (at least the current Applicable Federal Rate published by the IRS monthly), and the repayment schedule. This is a legally binding financial instrument — both the sale and the note must be documented as an arm's-length transaction. The estate attorney prepares the sale agreement and the note.
Estate attorney prepares documents — Shurek advises on note termsAnnual income tax reporting begins
From the year of the sale forward, all trust income appears on your personal Form 1040 via a grantor trust statement. The note interest you receive from the trust is ignored for income tax purposes — because you are both the grantor and the seller, it is a wash from an income tax standpoint. No separate trust return is required during your lifetime.
Shurek — annually as part of your personal returnOngoing note payments from trust to you
Per the promissory note terms, the trustee makes periodic payments (annual or more frequent) of interest and principal to you. The trust uses its income from the transferred assets to fund these payments. We track the note balance, confirm payments are being made on schedule, and monitor whether the trust has adequate income to service the note. If the trust's income is insufficient, the trustee may need to liquidate assets — which could create unexpected tax consequences we plan around.
Trustee makes payments — Shurek monitors and tracks| Form | Name | When Due | What It Does and Why It Matters |
|---|---|---|---|
| 709 | Gift Tax Return — Seed Gift | April 15 of year after the seed gift (extension to October 15) | Documents the seed gift establishing the trust. Must include adequate disclosure of the transferred property, the trust's terms, and the exemption used. Starts the 3-year statute of limitations on IRS challenge of the gift's value. |
| 1040 + Grantor Trust Statement | Individual Income Tax Return with IDGT attachment | April 15 annually (extension to October 15) | All trust income reported on your personal return. A grantor trust statement attachment lists the trust's income items. No separate trust return filed while you are alive. This is an ongoing annual obligation for the life of the trust structure. |
| 1041 | Trust Income Tax Return | April 15 annually after your death | After your death, the trust converts from grantor to non-grantor. Annual Form 1041 required. Income is taxed to the trust at compressed trust rates, or distributed to beneficiaries with K-1s at their individual rates. |
| 709 (ongoing) | Gift Tax Return — additional transfers | If additional assets are sold or gifted to the IDGT | If additional assets are transferred to the trust in subsequent years — whether as additional seed gifts or additional installment sales — each transfer is documented on a gift tax return. Multiple installment sales to the same trust are permitted. |
Economic modeling of the IDGT structure for your specific assets. Advising on note terms, seed gift sizing, and timing. Preparing Form 709 for the seed gift. Preparing the annual grantor trust statement and integrating all trust income into your personal return. Monitoring note payment schedules and trust investment performance. Preparing Form 1041 after your death.
Drafts the IDGT trust document with the precise grantor trust provisions needed for income tax treatment while maintaining estate tax exclusion. Prepares the sale agreement and the promissory note. Handles any deed or title work for real estate or partnership interests transferred into the trust.
Review and approve the strategy modeling before any documents are signed. Execute the trust document, sale agreement, and promissory note. Ensure the trustee makes note payments on schedule — this is a real financial obligation. Call us before any transaction involving the transferred assets — a refinancing, a partial sale, or a corporate reorganization could have unintended consequences on the IDGT structure.
The IDGT generates ongoing tax reporting obligations from the day it is funded until the promissory note is fully repaid. Every filing is coordinated — and every year of income tax payments you make is an additional tax-free transfer into the trust.
Form 709 for Seed Gift — Filed by Apr 15
The seed gift to the trust (typically 10% of the intended sale value) must be documented on a gift tax return for the year of the transfer. Adequate disclosure is included. This filing starts the 3-year statute of limitations on IRS challenge of the seed gift's value.
Installment Sale and Promissory Note Executed
The sale of assets to the trust is documented — a formal sale agreement and promissory note at the current AFR. We review the note terms and ensure the transaction is structured to withstand IRS scrutiny as a genuine arm's-length sale. The note is the legal foundation of the entire strategy.
Form 1040 with Grantor Trust Statement
All IDGT income flows to your personal Form 1040 annually via a grantor trust statement. Dividends, interest, capital gains, and any other income generated by the trust's assets appear on your return as if you still owned them directly. You pay the tax — and that tax payment is an additional tax-free transfer to the trust each year. We prepare this statement and integrate it into your return.
Promissory Note Payments from Trust to You
The trustee makes interest and principal payments to you according to the note schedule — typically annually. We track the outstanding note balance and confirm payments are made on time. Underpayment can be characterized as an additional gift from you to the trust, potentially triggering gift tax consequences. We monitor this and alert you if the trust's income position threatens its ability to service the note.
Trust Investment and Income Review
We review the trust's investment performance and income against the note payment obligations. The trust must generate sufficient income to make note payments — if investment returns fall short, the trustee may need to liquidate assets, which can create capital gains inside the trust (reported on your return as grantor). We advise on the investment approach to avoid this outcome.
Transfer Complete — All Future Growth Outside Your Estate
Once the note is fully repaid, you have received back your original principal plus interest. The trust owns the assets free and clear. All future appreciation from this point forward belongs to the trust beneficiaries — permanently outside your estate with no further strings. We document the payoff and close the note.