Part V. Supplemental Information — 2025 Inst 990-T (PDF)

Use Part V to provide the IRS with narrative information required for responses to specific questions on Form 990-T, and to explain the organization’s operations or responses to various questions.

Signature

Corporations. The return must be signed and dated by the president, vice president, treasurer, assistant treasurer, or chief accounting officer, or by any other corporate officer (such as a tax officer) authorized to sign. Receivers, trustees, or assignees must also sign and date any return filed on behalf of the organization.

Trusts. The return must be signed and dated by the individual fiduciary, or by the authorized officer of the trust receiving or having custody or control and management of the income of the trust. If two or more individuals act jointly as fiduciaries, any one of them may sign.

Special rule for IRA trusts. A trustee of IRA trusts may use a facsimile signature if all of the following conditions are met.

Each group of returns sent to the IRS must be accompanied by a letter signed by the person authorized to sign the returns declaring, under penalties of perjury, that the facsimile signature appearing on the returns is the signature adopted by that person to sign the returns filed and that the signature was affixed to the returns by that person or at that person’s direction.
The letter must also list each return by the name and EIN of the IRA trust.
After the facsimile signature is affixed, no entries on the return may be altered other than to correct discernible arithmetic errors.
A manually signed copy (of the letter submitted to the IRS with the returns and a record of any arithmetic errors corrected) must be retained on behalf of the IRA trusts listed in the letter and it must be available for inspection by the IRS.

Paid Preparer Anyone who is paid to prepare the return must sign the return, list the preparer tax identification number (PTIN), and fill in the other blanks in the Paid Preparer Use Only area unless that person is paid for preparation as part of their duties as your employee.

The paid preparer must:

Sign the return in the space provided for the preparer’s signature;
Include their PTIN; and
Give a copy of the return to the organization.

Note: A paid preparer may sign original returns, amended returns, or requests for filing extensions by rubber stamp, mechanical device, or computer software program. Also, facsimile signatures are authorized.

Paid preparer authorization. If the organization wants to allow the IRS to discuss this tax return with the paid preparer who signed it, check the “Yes” box in the signature area of the return. This authorization applies only to the individual whose signature appears in the Paid

Instructions for Form 990-T (2025) 17

Preparer Use Only section of its return. It doesn’t apply to the firm, if any, shown in that section.

If the “Yes” box is checked, the organization is authorizing the IRS to call the paid preparer to:

Give the IRS any information that is missing from its return;
Call the IRS for information about the processing of its return or the status of its refund or payment(s); and
Respond to certain IRS notices that the organization has shared with the preparer about a math error, offsets, and return preparation. The notices won’t be sent to the preparer.

trade or business, less a specific deduction under section 512(b)(12); and

For purposes of section 512(a)(6)(B), UBTI with respect to any such trade or business shall not be less than zero.

Thus, under section 512(a)(6), an exempt organization may not aggregate income and deductions from all unrelated trades or businesses when calculating UBTI.

An organization determines whether it regularly carries on one or more unrelated trades or businesses by applying sections 511 through 514. Identify each separate trade or business using the first two digits of the NAICS two-digit code that most accurately describes the unrelated trade or business based on the more specific NAICS code, such as at the six-digit level. Identify activities in the nature of investments, which aren’t described in NAICS, using the appropriate business activity code described under Non-NAICS Business Activity Codes , later.

An organization will use each NAICS two-digit code only once. For example, a hospital organization that operates several hospital facilities that include pharmacies that sell goods to the general public would include all the pharmacies under the NAICS two-digit code for retail trade, regardless of whether the hospital organization keeps separate books and records for each pharmacy.

Once a two-digit NAICS code or business activity code is used for an unrelated trade or business, you should continue to use that same code in subsequent tax years. If it is necessary to change the two-digit NAICS code or business activity code previously used for an unrelated trade or business, you must report the change in a statement attached to the Schedule A (Form 990-T) on which the activities are reported. The statement should include the following.

The two-digit NAICS code or business activity code used in the previous tax year.
The two-digit NAICS code or business activity code used this year.
If filing more than one Schedule A (Form 990-T), the sequence numbers from item D of the applicable Schedule A (Form 990-T).
A narrative explanation describing the reason for the change.

Caution: See Regulations section 1.512(a)-6(h)(4) regarding the potential effects on NOL carryforwards upon a change of the two-digit NAICS code for an unrelated trade or business.

Caution: Regulations section 1.512(a)-6(c)(9) describes a transition rule for certain partnership interests. The transition period ended on the first day of the first tax year beginning after December 2, 2020.

Dual-Use Property

Section 512(a)(1) permits an exempt organization with an unrelated trade or business to reduce the income from that trade or business by the deductions allowed by

The organization isn’t authorizing the paid preparer to receive any refund check, bind the organization to anything (including any additional tax liability), or otherwise represent the organization before the IRS. If the organization wants to expand the paid preparer’s authorization, see Pub. 947, Practice Before the IRS and Power of Attorney.

The authorization can’t be revoked. However, the authorization will automatically end no later than the due date (excluding extensions) for filing next year’s Form 990-T.

Caution: Enter the paid preparer’s PTIN, not their SSN, in the “PTIN” box in the paid preparer’s block. Because Form 990-T is publicly disclosable when filed by a 501(c)(3) organization, any information entered in this block will be publicly disclosed. For more information about PTINs, go to IRS.gov/Taxpros .