Skip to main content

Installment Sale to Intentionally Defective Grantor Trusts (IDGTs)

Book a Consultation
img-hero-green

Last Updated: Aug 5, 2026

Read Time: 3 mins

In order to freeze the value of assets and remove the assets from in an individual’s personal, taxable estate, an effective strategy is an installment sale to an Intentionally Defective Grantor Trust (“IDGT”)

This technique includes the grantor selling assets to an irrevocable trust in exchange for an installment note. A small “seed” gift is typically also made to the trust to ensure enough equity to support the loan.

The strategy often includes incorporating a family limited partnership (“FLP”) or family limited liability company (“FLLC) that holds the grantor’s assets. The the FLP or FLLC is structured in a way that will result in valuation (by a CPA) receiving a discount. The FLP or FLLC interests provide a greater benefit because the interests will be sold at the discounted valuation. This provides for an automatic reduction in the value of the FLP or FLLC that holds the grantor’s assets. The FLP or FLLC is sold to the IDGT for an installment sale.

The installment note is a ballon note (meaning only interest payments have to be paid annually until the term date of the note) that the IDGT pays the grantor in exchange for grantor’s assets (such the FLP or FLLC described above or other assets) to the IDGT will have an interest rate equal to the long term Applicable Federal Rate (AFR). The AFR is set by the IRS each month. The interest payments received by the grantor can be used for anything the grantor wishes.

Since the trust is structured as an IDGT, there are no income tax consequences resulting from the sale. The interest payments on the installment note are not taxable income to the grantor, and the payment of taxes on the trust’s income provides an additional gift that is tax free to the beneficiaries.

To the extent that the assets sold to the IDGT produce income or appreciate in value, it will be for benefit of the beneficiaries of the IDGT. Another benefit of this planning technique is that the assets held by the irrevocable IDGT are protected from creditor claims including divorcing spousal claims.

If properly structured, it is also possible to engage in income tax planning such as swapping high basis assets with trust assets having a low basis, at a later date. By including the low basis assets, rather than the high basis assets in the grantor’s estate, such low basis assets will receive a step-up in basis at the grantor’s death.

Unlike a transfer to a Grantor Retained Annuity Trust (“GRAT”), Generation Skipping Tax (“GST”) exemption can be allocated to the IDGT at the time of the initial transfer, so that the trust assets will be able to be passed from generation to generation free of wealth transfer taxes. This means the Intentionally Defective Grantor Trust can be designed to by a Dynasty Trust that will last in perpetuity.

Finally, one of the greatest advantages of the installment sale to an IDGT is that it removes assets from the grantor’s personal, taxable estate while also preserving the grantor’s ability to use the grantor’s exemption amount to be able to pass assets free from the estate tax.

The Stuart Green Law Approach

A Modern Approach to Family Wealth

Stuart Green Law combines modern South Dakota trust law with integrated estate planning, wealth management, and fiduciary services for families throughout the United States and internationally. The firm’s approach is built around selecting the strongest legal framework available, maintaining continuity of planning judgment, and bringing every part of the family’s wealth strategy into alignment with its long-term objectives.

Client Testimonials

Posted on Google Google
Angélique Pfab Green profile picture
Angélique Pfab Green
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Stuart Green is incredibly knowledgeable and clearly operates at a very high level. His approach to estate planning and wealth strategy is thoughtful, modern, and well beyond the traditional. You can tell he genuinely cares about helping people protect what they’ve built. Truly impressive work and reputation.
Posted on Google Google
Maria Cardenas Anderson profile picture
Maria Cardenas Anderson
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had an excellent experience working with Stuart Green on my trust and will documents. From start to finish, he was incredibly responsive, patient, and thorough. He took the time to explain everything clearly, ensuring I fully understood each step of the process. Even after the trust was complete, he guided me on what still needed to be done — something I really appreciated. Stuart’s professionalism and kind demeanor made what could have been an overwhelming experience so much easier. I felt informed and supported every step of the way. I would highly recommend him to anyone looking for a knowledgeable and attentive probate lawyer. Thank you, Stuart!
Posted on Google Google
katelyn rennie profile picture
katelyn rennie
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Stuart is outstanding! We have been so impressed with his knowledge.
Posted on Google Google
Chris Stinson profile picture
Chris Stinson
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Stuart Green is an exceptional estate attorney. He handled my father's living will and then his estate after his passing, as well as helping my mother finalize and complete her estate in conjunction with my father's death. Currently, he is handling the living will and estate planning for me and my wife and our family. I highly recommend him and his integrity of work.
Posted on Google Google
Alejandra profile picture
Alejandra
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
My experience with Stuart Green Law was a 10/10. They were professional and efficient, resolving my case quickly. I highly recommend them!
Posted on Google Google
Joseph Marchetti profile picture
Joseph Marchetti
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great guy - honest businessman. Has been very helpful for me in providing feedback and input from a law perspective on employment and legal agreements in my personal and professional life. Would heartily recommend Stuart to others!
Posted on Google Google
Will Desrochers profile picture
Will Desrochers
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have worked with Mr. Green for awhile now and can't recommend him highly enough. He is professional and and timely with his responses to my questions. I really appreciate how he helps me understand the plan for my estate. I look forward to continuing to work with him.
Posted on Google Google
Chuma profile picture
Chuma
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’ve learned a great deal from Stuart on the foundational aspects of estate planning, legacy planning and asset protection. Having had the privilege to work alongside Stuart, I can also say that he is a top tier counselor and focused on aligning his client’s personal goals with their long term objectives and wishes.
Posted on Google Google
Nick Delsignore profile picture
Nick Delsignore
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Incredible person to know and be associated with. Stuart provides excellent services, that is undeniable. However you will be hard pressed to find another attorney with a truer moral compass.
View All

Perspectives on Modern Estate Planning

Modern estate planning continues to evolve alongside trust law, tax strategy, wealth management, and family governance. Our articles explore the ideas shaping sophisticated estate planning, providing thoughtful analysis of the legal structures and planning philosophies that preserve wealth across generations.

Start the Conversation

Whether you’re evaluating an existing estate plan or exploring sophisticated planning strategies for the first time, we’d welcome the opportunity to discuss your family’s long-term objectives.

Contact Us