Often, there is confusion regarding how a trust or a subtrust may report income and the TIN which should be used. Treasury regulations spell this out quite clearly. Treasury Regulation 1.671-4 is the relevant section.
Section 1.671-4(b)(2) provides that if a trust is treated as owned by one grantor or one other person, the trustee must either A) Furnish the name and TIN of the grantor or other person treated as the owner of the trust and the address of the trust to all payors for the taxable year, or B) Furnish the TIN of the trust and address of the trust. Of course, the latter method would also be used if the trust is a nongrantor trust.
A grantor of a trust is spelled out in Sections 671 to 677. For example, the power to revoke is listed as a power making a trust owned by the grantor under section 676. Under Section 678 someone other than the grantor may be treated as the owner of the trust for income tax purposes. Under Section 678, someone other than the grantor would be treated as the owner of the trust if they had the power to vest the corpus or income of the trust in themselves (i.e. a general power of appointment), or if they previously had such a power and they retained other powers under sections 671 to 677. There is an exception if the original grantor still is considered the owner of the trust. (Of course, upon the grantor’s death, the grantor is no longer considered the owner of the trust.)
Let’s look at two quick examples.
Example 1: Mary has a revocable trust. The trustee of Mary’s trust (who might be her or might be someone else) wants to use Mary’s TIN (which is her social security number). This is appropriate because Mary has the power to revoke the trust and is the owner pursuant to section 676. If the trustee preferred, they could choose to use a separate TIN for the trust.
Example 2: Upon Mary’s death, her trust sets up a subtrust for John. Under the subtrust, John has a right to withdraw the assets and income from the trust. This type of trust is commonly referred to as an “Access Trust” or a “Divorce Protection Trust.” Since John has a right of withdrawal and Mary is dead, John is considered the owner pursuant to Section 678 of the Code. The trustee of John’s subtrust may use John’s TIN (which is his social security number) as the TIN for the trust. If the trustee preferred, they could use a separate TIN for the trust.
If the trustee chooses to use the substantial owner’s TIN, the income would go directly to the substantial owner’s tax return and there’d be no need for a separate tax return for the trust. If the substantial owner isn’t the trustee, the trustee would need to provide the substantial owner a statement showing all items of income and deduction and other information which might be necessary for the substantial owner to take into account in computing their taxable income.