Exempt Organization Business Income Tax Return

Filed when an exempt organisation has unrelated business taxable income - and it is a tax return, not an information return.

FIRE closes 19 November 2026

The IRS is retiring FIRE. It accepts information returns until 3 p.m. ET on 19 November 2026, and from 1 January 2027 IRIS is the only electronic channel - including for prior-year returns and corrections. New Transmitter Control Codes are no longer issued through FIRE, so a TCC application now has to go through IRIS.

IRS notice

What is Form 990-T?

Form 990-T reports unrelated business taxable income. It is the one form in this series that produces an actual tax liability: an exempt organisation is exempt on its mission-related income, not on income from a trade or business unrelated to that mission. Advertising revenue, some rental arrangements and certain investment income can all fall inside it. 990-T is filed IN ADDITION to the organisation's regular 990, 990-EZ or 990-PF, not instead of it, which is a distinction organisations discovering unrelated income for the first time frequently get wrong.

Who Must File 990-T?

  • 1Exempt organisations with gross income of $1,000 or more from an unrelated trade or business
  • 2Certain retirement and other trusts with unrelated business income
  • 3Filed in addition to the organisation's 990, 990-EZ or 990-PF

Filing threshold: $1,000 or more of gross income from an unrelated trade or business

990-T Filing Deadlines

Paper Filing

15th day of the 5th month after the tax year ends for most organisations

Electronic Filing

15th day of the 5th month after the tax year ends for most organisations

Recipient Copy

Not applicable - no recipient copy

Penalties for Late or Incorrect Filing

Failure-to-file and failure-to-pay penalties apply, as this is a tax return with a liability

2024 penalty tiers: $60/form (โ‰ค30 days late) โ†’ $130/form (31 days-Aug 1) โ†’ $310/form (after Aug 1) โ†’ $630/form (intentional disregard). Small business caps may apply.

990-T Box-by-Box Guide

BoxDescription
Part ITotal unrelated business taxable income
Part IITax computation
Part IIITax and payments
Schedule AOne per unrelated trade or business - they are computed separately

How TaxBlitz Simplifies 990-T Filing

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Direct IRS eFiling

File electronically through IRIS, or through FIRE until it closes on 19 November 2026. No paper, no postage, instant confirmation.

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TIN Verification

Verify taxpayer IDs before filing to avoid CP2100 notices and B-Notice requirements.

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Print & Mail

Automatically print and mail recipient copies via USPS with delivery tracking (Lob API).

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eDelivery Portal

Recipients access forms instantly through a secure, token-authenticated online portal.

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Corrections & Void

File corrections or void forms electronically - no manual IRS correspondence needed.

990-T Frequently Asked Questions

Does filing 990-T replace our Form 990?

No. 990-T is filed in addition to the regular annual return, never instead of it.

Are separate unrelated businesses combined?

No. Each unrelated trade or business is computed separately on its own Schedule A, so a loss in one cannot offset income in another.

Does having unrelated income threaten our exempt status?

Not by itself. The income is taxed rather than disqualifying, though scale and prominence relative to the exempt purpose can raise separate questions.

Related Forms

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