Skip to main content

Industry tax guide

Nonprofit organizations tax and accounting

Filings and accounting that protect your exemption and your donors' trust.

Nonprofit Organizations business environment

Nonprofits are exempt from income tax, but not from reporting. Each year they file an information return that donors, grantmakers and regulators read, and income from activities outside their mission can be taxable.

Good compliance means filing the right version of Form 990, tracking restricted gifts, identifying unrelated business income and keeping state registrations current.

Compared with a general business

What makes taxes different for nonprofit organizations

Exempt from income tax, not from filing

Form 990, 990-EZ, 990-N or 990-PF is due every year.

Unrelated business income

Income outside the mission can be taxed on Form 990-T.

Public support tests

Public charities must show broad public support or risk becoming a private foundation.

State charitable registration

Organizations soliciting donations register in most states where they fundraise.

The rules in detail

Tax rules for nonprofit organizations

Which Form 990 to file

Small organizations with gross receipts normally of $50,000 or less file the 990-N e-postcard; others file Form 990-EZ or the full Form 990, depending on receipts and assets. Private foundations file Form 990-PF. Missing three years in a row revokes exemption automatically.

Unrelated business income

Income from a trade or business regularly carried on and not substantially related to the mission, such as advertising sales or some rentals, is taxed on Form 990-T if gross income from it is $1,000 or more.

Payroll and contractors

Exempt organizations still withhold and pay payroll taxes on employees, file Forms 1099-NEC for contractors, and must report compensation of officers and key employees on Form 990.

Planning moves

Ways to save tax in nonprofit organizations

  1. Structure sponsorships as qualified sponsorships

    Acknowledgments rather than advertising keep income tax-free.

  2. Separate unrelated activities

    A taxable subsidiary can protect the exemption.

  3. Deduct expenses against UBI correctly

    Directly connected expenses reduce taxable unrelated income.

  4. Use volunteer and in-kind records

    Donated goods and services are recorded properly for reporting and grants.

  5. Avoid penalties

    On-time Form 990 filings avoid daily penalties and loss of exemption.

  6. Apply for state sales and property tax exemptions

    Many states exempt charities' purchases and property, but only after an application.

Working with OICPA

How we help

Service

Review income for UBIT

Sponsorships, advertising and rentals reviewed, with Form 990-T filed when required.

Business Tax Returns
Service

Fund accounting that donors trust

Restricted and unrestricted funds tracked monthly, ready for your board and auditors.

Bookkeeping Services

Bookkeeping and reporting

The accounting behind the tax work

Tax-exempt describes income tax status, not a compliance-free existence. We help nonprofit leadership understand exactly which Form 990 tier applies, where unrelated business income tax exposure is hiding, and how to keep restricted funds and donor substantiation defensible.

Filing tier uncertainty

Which Form 990 version applies depends on gross receipts and total assets, not how large the organization feels. Assuming a small, informal nonprofit has no filing obligation is a common and expensive misunderstanding.

Unrelated business income going untracked

Revenue from an activity not substantially related to the exempt purpose, facility rental, an advertising-adjacent sponsorship, can trigger UBIT at standard corporate rates, even for an organization that owes nothing on its mission-related revenue.

Restricted funds mixed with general operating cash

Donor- or grant-restricted funds need their own tracking, separate from general operations, both to satisfy funder reporting and to avoid inadvertently spending restricted money on unrelated activity.

What you can expect

  • Form 990 filing tier confirmation and annual preparation
  • UBIT exposure review across all revenue streams
  • Restricted fund tracking and donor acknowledgment letter support

Frequently asked questions

Is sponsorship income taxable?

A qualified sponsorship, where the sponsor gets only an acknowledgment, is not. Advertising with comparative or promotional language generally is unrelated business income.

What happens if we miss our 990?

Late filing brings daily penalties, and failing to file for three consecutive years automatically revokes tax-exempt status.

Do we need an audit?

Federal law does not require one for most nonprofits, but many states, grantmakers and federal award thresholds do. We check what applies to you.

Related articles

References

  1. Annual exempt organization return: who must fileInternal Revenue Service
  2. Unrelated business income taxInternal Revenue Service
  3. About Form 990-T, Exempt Organization Business Income Tax ReturnInternal Revenue Service
  4. 26 U.S. Code § 512: Unrelated business taxable incomeLegal Information Institute, Cornell Law School

Rules reflect federal tax law as of November 2026.