Foreign trust distributions: DNI and UNI

For a U.S. citizen, a foreign trust distribution can include current distributable net income or accumulated undistributed net income. Grantor status, trust portions, beneficiary statements and reporting rules affect its U.S. tax treatment.

How DNI and UNI arise

Distributable net income, or DNI, measures income that may be carried out to beneficiaries under trust distribution rules. For a foreign trust, DNI includes realized capital gains. DNI is taxable income with specified modifications, so it is not simply a trust's gross receipts or cash available for distribution.^[1]^[4]

When DNI is not fully distributed, the trust's undistributed share, after taxes properly allocable to that income, may become UNI. The amount of UNI therefore depends on DNI, distributions and allocable trust taxes. It is not necessarily equal to the undistributed gross amount of current income.^[1]

A distribution from a foreign nongrantor trust carries out DNI when the trust has income, even if a trustee describes the payment as corpus or capital gain. Current-year income distributed to a U.S. beneficiary generally retains its character, including realized capital gains as capital gains. Accumulated income distributed in a later year can instead be treated under UNI and throwback rules.^[6]

When a distribution is an accumulation distribution

There are exceptions to describing accumulation distributions simply as distributions exceeding DNI. For a domestic trust, there is no accumulation distribution for a year in which amounts paid or required to be distributed do not exceed trust accounting income, but under section 665(b) that exception does not apply to foreign trusts. Thus, the calculation depends on the applicable definition and conditions, not a universal one-line formula.^[10]

A U.S. beneficiary receiving an accumulation distribution of UNI from a foreign nongrantor trust calculates throwback tax on Form 4970, attached to Form 3520. The calculation allocates amounts to prior UNI years and includes an interest computation.^[1]

Beneficiary statements and calculation methods

A Foreign Nongrantor Trust Beneficiary Statement can provide information used for an actual calculation method described in proposed regulations. Under the proposed rules, a U.S. grantor or beneficiary may not use that method unless the person has received the statement from the foreign trust.

The proposed rules also include a default calculation method. Under these proposed rules, a person who previously used the default method generally continues using it for later distributions from the same trust, with an exception for the year the trust terminates. Conditions apply to use of the method.^[7]

For Form 3520 reporting, a distribution information alternative covering three years is available when the beneficiary cannot obtain the statement. The applicable methods and conditions are specific to this reporting context.^[1]

Grantor status and the trust portion matter

The throwback rule applies to distributions from foreign nongrantor trusts, not distributions from a grantor-owned portion treated as owned by the grantor. A trust can be treated as a grantor trust in whole or in part, so the tax characterization depends on the relevant portion and who is treated as its owner.^[5]

A foreign grantor trust may become a foreign nongrantor trust after the settlor's passing. Income accumulated after that change and later distributed to U.S. beneficiaries may be treated as UNI. The change in status makes the grantor or nongrantor classification and the relevant trust portion material to the distribution's characterization.^[12]

U.S. reporting context

Form 3520 is the reporting form for a U.S. person receiving a foreign trust distribution. For a U.S. beneficiary who receives a foreign nongrantor trust accumulation distribution consisting of UNI, Form 4970 is attached to Form 3520 for the throwback tax calculation.^[1]

Questions and answers

What does DNI mean for a foreign trust distribution?

DNI is the trust income measure used in the distribution rules. For foreign trusts, DNI includes realized capital gains, and current-year distributed income generally retains its character in the beneficiary's hands.^[1]^[6]

When can undistributed income become UNI?

A trust may have UNI when DNI exceeds distributions and taxes properly allocable to the undistributed portion.^[1]

Does a trustee's label determine whether a payment carries DNI?

A discretionary nongrantor trust distribution carries out DNI to the extent the trust has income. The result does not turn on whether the trustee labels the payment as corpus or capital gains.^[6]

How are prior-year gains treated when UNI is distributed?

Capital gains from prior years included in DNI can lose their character as capital gains under throwback treatment and be treated as ordinary income. The distribution also involves an interest computation.^[4]

What does a Foreign Nongrantor Trust Beneficiary Statement do?

Under the proposed actual calculation method, a U.S. grantor or beneficiary must have received the statement to use that method. The proposed rules also include a default method and conditions on its continued use.^[7]

Does grantor status affect throwback treatment?

Yes. The throwback rule does not apply to distributions from a grantor trust portion treated as owned by the grantor. A trust may also have a nongrantor portion, so the relevant portion's status matters.^[5]

Related glossary terms

U.S. beneficiary of a foreign trust: A U.S. beneficiary of a foreign trust is a U.S. person who can receive a distribution from the trust. This status drives Form 3520 reporting of distributions.
U.S. owner of a foreign trust: The Form 3520 instructions define a U.S. owner as a person treated as owning trust assets under grantor trust rules. Ownership can apply to part of a trust.
Foreign grantor trust beneficiary statement: A foreign grantor trust beneficiary statement appears on page 5 of Form 3520-A. It reports distributions to U.S. beneficiaries and identifies the trust's owner.