Incomplete Non-Grantor Trust and State Tax Planning

An incomplete non-grantor trust (often called an ING trust) is a structure that defers the completion of a gift for federal gift tax purposes while the trustee—often a financial advisor or professional—intentionally withholds certain powers to keep the trust outside the grantor’s taxable estate, all while the underlying assets escape the grantor’s home state income tax.

Why the Name Matters

The “incomplete” piece refers to federal gift and estate tax law. Under IRC §2511 and related authority, a gift is incomplete if the grantor retains rights or controls that make the transfer contingent or revocable. An incomplete gift is not taxable to the grantor in the year it is made, and the assets remain in the grantor’s taxable estate if the grantor dies while the gift is still incomplete. The federal tax benefit is deferral: the grantor avoids gift tax now and can preserve the unified estate tax exemption.

The “non-grantor” piece is equally important. Under IRC §671 and following, a trust may be structured so that the grantor is not treated as the owner of trust income for income tax purposes. When done correctly, a non-grantor trust files its own Form 1041 income tax return, and income is taxed to the trust or its beneficiaries—not to the grantor. That separation from the grantor is what allows the ING trust to sidestep state income tax on investment earnings inside the trust.

How State Income Tax Avoidance Works

A grantor in a high-tax state (California, New York, Massachusetts) typically remains liable for state income tax on all income and gains they own or control, regardless of where the assets are held. But if the trust is drafted so that the grantor is not the owner for federal income tax purposes, and if the trust is funded in or administered from a low-tax state (South Dakota, Nevada, Delaware, Wyoming), the trust’s income may be taxed only in that low-tax state—or not at all in states without income tax.

The mechanics depend on state law. Many high-tax states have “grantor trust” statutes that may cause them to tax the grantor anyway if the trust retains certain powers. That is why the non-grantor structure is critical: the trustee holds discretionary powers, not the grantor. The grantor may be a beneficiary and may even be a trustee, but must not retain the ability to revoke, modify, or directly control distributions in a way that triggers state grantor-trust taxation.

In practice, a professional trustee (an independent financial advisor, bank, or trust company in South Dakota or Delaware) holds the non-grantor powers. The grantor funds the trust, designates beneficiaries, and may advise the trustee informally—but has no legal right to demand distributions, change terms, or direct investments. That structural separation from control is what decouples the trust’s income from the grantor’s state residence for income tax purposes.

Incomplete Gift and the Estate Tax Exemption

The incomplete gift piece is the federal tax strategy. When a gift is incomplete (because the grantor retains some legal contingency or the transfer is otherwise not final), the grantor does not use gift tax exemption in the year the transfer is made. The grantor can instead continue to own or control the assets in the eyes of the IRS, and no gift tax return is required.

The trade-off is that the incomplete gift remains in the grantor’s taxable estate if the grantor dies while the gift is still incomplete. However, if the grantor lives long enough for the gift to become complete (perhaps by the grantor’s release of a power, or by passage of a specified time), the assets are then removed from the estate at reduced value (because the gift was made at a lower value in prior years, if any).

Some ING structures use so-called “Crummey” powers (a beneficiary’s brief right to withdraw contributions) or other mechanisms to prevent the gift from being complete until a future date or condition. The grantor can thus defer the use of exemption, and if exemptions change or if the value of the assets decreases, the deferred gift may not trigger a taxable transfer at all.

The State Income Tax-Federal Gift Tax Interplay

The elegance of the ING trust lies in its dual nature. On the federal estate and gift tax front, the grantor is treated favorably: no immediate gift tax, and deferral of the use of exemption. On the state income tax front, the trust operates independently, so investment income and capital gains inside the trust escape the high-tax state’s income tax.

This is not tax evasion. The trust is fully transparent to the IRS. Form 1041 is filed, beneficiaries receive K-1s, and all income is properly reported. The advantage is that the ING structure legally separates the grantor’s federal gift and estate tax exposure from the trust’s state income tax exposure. A California resident, for example, can fund a South Dakota non-grantor trust, and the trust’s 6% investment gains are taxed in South Dakota (where there is no state income tax) or to the South Dakota trust under state law, not to the California grantor.

Common Pitfalls and Limitations

ING trusts are not automatic. Several traps exist:

• Grantor trust creep: If the grantor retains too much control or advisory power (especially over distributions), a high-tax state may recharacterize the trust as a grantor trust, subjecting all income to state tax.
• Multi-state administration: If the trustee or the physical assets move to a high-tax state, the trust may lose its state tax benefit.
• Incomplete gift reversion: If the grantor dies while the gift is still incomplete, the trust assets are included in the estate. The federal exemption is not “saved”; it merely was not spent earlier.
• Income tax complexity: Non-grantor trusts file Form 1041 and issue K-1s. That increases compliance and accounting costs.
• Creditor exposure: The incomplete gift means creditors of the grantor may have a claim on the trust until the gift is truly complete, depending on the state law and the trust’s design.

Who Uses ING Trusts and Why

ING trusts appeal to high-income earners (entrepreneurs, executives, professionals) who live in high-tax states and who want to transfer wealth without triggering immediate gift tax or state income tax. The structure is especially attractive when the grantor is young, in good health, and expects to live many years. If the grantor lives long enough, the gift can eventually become complete (automatically or by the grantor’s choice), and the assets are removed from the estate below their current value—a form of leveraged estate tax planning.

They are also used by grantors who want to shift income to lower-tax jurisdictions while managing the federal exemption flexibly. For example, a high-earning grantor in New York might fund an incomplete non-grantor trust in South Dakota, so that the trust’s substantial dividend and interest income is not taxed in New York, while the grantor preserves exemption in case federal exemptions decline in the future.

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