Nonprofits with federal tax-exempt status under Section 501(c)(3) do not pay federal income taxes. However, this does not mean they are free from all tax obligations. Nonprofits still must pay payroll taxes for employees, state and local taxes that vary by location, and taxes on unrelated business income. Understanding which taxes apply and which ones don’t is critical for nonprofit leaders to maintain compliance and protect their tax-exempt status.
What Makes a Nonprofit Tax-Exempt?
Tax-exempt status begins with proper federal recognition. A nonprofit must file Form 1023 or 1023-EZ to apply for 501(c)(3) status with the IRS. Organizations must be organized and operated exclusively for charitable, religious, scientific, educational, or social purposes to qualify. The filing fee for Form 1023 is $600, and organizations must apply within 27 months of forming to receive tax benefits retroactively to their incorporation date.
Churches and some religious organizations receive automatic tax-exempt status upon incorporation without needing to file an application. Nonprofits with annual gross receipts under $5,000 also qualify for automatic exemption. For all other nonprofits, federal recognition comes only after IRS approval. Once approved, the nonprofit receives a determination letter, which opens doors to grant funding, donor tax deductions, and reduced mailing rates.
Types of Tax-Exempt Organizations and Their Obligations
Not all nonprofits are 501(c)(3) organizations. Different nonprofit categories have different tax rules and restrictions.
| Category | Tax Treatment |
|---|---|
| 501(c)(3) Charities | Exempt from federal income tax; donations tax-deductible; limited lobbying; must pay employment taxes and UBIT if applicable |
| 501(c)(4) Social Welfare | Exempt from federal income tax; donations not deductible; unlimited lobbying; must pay employment taxes and UBIT if applicable |
| 501(c)(6) Trade Groups | Exempt from federal income tax; donations not deductible; unlimited lobbying related to exempt purposes; must pay employment taxes and UBIT if applicable |
501(c)(4) social welfare organizations are exempt from federal income tax but cannot receive tax-deductible donations. They can engage in unlimited lobbying activities related to their mission. 501(c)(6) business leagues are also exempt from federal income tax but their members’ dues are not tax-deductible. These organizations must still follow employment tax rules and pay taxes on unrelated business income, just like 501(c)(3) organizations.
The Tax-Exempt Status Misconception: What Nonprofits Actually Pay
The biggest mistake nonprofit leaders make is assuming that tax-exempt status means paying no taxes at all. Federal income tax exemption is narrow in scope. A nonprofit with 501(c)(3) status does not pay federal corporate income tax on donations, grants, and mission-related revenue. However, this exemption creates a long list of remaining obligations.
Nonprofits must pay employment taxes on employee wages, including federal income tax withholding, Social Security and Medicare (FICA) taxes, and federal unemployment taxes (FUTA). The employer portion of FICA taxes is 7.65% of each employee’s wages, and the employee portion is another 7.65%. Nonprofits must withhold both amounts from paychecks and deposit them with the federal government. Organizations with employees must file Form 941 quarterly to report these taxes, and Form 940 annually for FUTA taxes.
State unemployment taxes follow a different path. 501(c)(3) organizations have two options for SUTA: they can choose to contribute to the state unemployment program or opt for a reimbursement method where they pay the state dollar-for-dollar for actual unemployment benefits paid out. Many states also require nonprofits to pay state income tax on unrelated business income and to collect and remit sales tax on certain purchases and sales.
Federal Income Tax Exemption: The Core Benefit
Federal income tax exemption means that donated funds and mission-related revenue are not subject to the corporate income tax that regular businesses pay. A nonprofit can receive millions in donations and grants without triggering federal income tax liability. Additionally, nonprofits generally are exempt from federal unemployment taxes (FUTA) in most cases, though they still must pay the employer portion of FICA taxes and withhold taxes from employee paychecks.
State and local governments offer their own tax breaks. Many states exempt nonprofits from state income tax and sales tax on charitable purchases. However, states vary widely in their generosity. Some states like Illinois require nonprofits to obtain exemption identification numbers to qualify for sales tax exemption despite federal 501(c)(3) status. California offers nonprofit property tax exemptions for properties used for charitable purposes, removing local property tax liability.
The benefit extends beyond tax breaks. Organizations with 501(c)(3) status can apply for grants available only to tax-exempt entities, accept tax-deductible donations (which incentivize larger gifts), and qualify for nonprofit mailing rates that significantly reduce postage costs. These benefits collectively allow nonprofits to stretch donations further toward their missions.
Unrelated Business Income Tax (UBIT): When Nonprofits Must Pay Taxes
Congress created the Unrelated Business Income Tax in 1950 to prevent nonprofits from gaining unfair advantages over for-profit businesses. UBIT applies when a nonprofit regularly carries on a trade or business that is not substantially related to its charitable purpose. The tax is designed to level the playing field between nonprofits and commercial competitors.
Three factors determine if income is subject to UBIT: the activity must be a trade or business, it must be regularly carried on, and it must be not substantially related to the nonprofit’s exempt purpose. A nonprofit youth camp that rents its facilities to business conferences during the off-season generates UBIT because the rental income is unrelated to youth development. A homeless shelter selling donated goods at a thrift store does not generate UBIT because the resale of donated merchandise is substantially related to its mission of helping people in need.
| Activity Type | UBIT Status |
|---|---|
| Church runs arcade for entertainment profit | Taxable income (unrelated to religious mission) |
| College sells textbooks in campus bookstore | Not taxable (substantially related to education) |
| Nonprofit fitness center sells newsletter advertising | Taxable income (unrelated to fitness programming) |
| Food bank conducts cookbook sales using donated recipes | Not taxable (promotes food bank’s charitable mission) |
Important exceptions exist for volunteer-run activities and member conveniences. If a nonprofit runs a fundraiser substantially operated by volunteers (uncompensated workers), the income is not subject to UBIT. This is why many nonprofit holiday gift sales and bake sales escape taxation. Similarly, activities operated primarily for the convenience of members, officers, or employees—such as a school cafeteria—are exempt from UBIT regardless of revenue generated.
If a nonprofit earns $1,000 or more in gross income from an unrelated business, it must file Form 990-T to report the income and pay tax at corporate rates. The income is taxed at the same rates that apply to corporations, not at individual income tax rates. If estimated taxes will reach $500 or more, the nonprofit must make quarterly estimated payments using Form 990-W. Failure to properly report and pay UBIT can trigger penalties, interest, and in severe cases, revocation of tax-exempt status.
State and Local Tax Obligations Beyond Federal Exemption
Federal tax-exempt status does not automatically translate to state and local tax breaks. States must independently choose to honor federal exemptions, and most do—but with conditions and variations. Organizations must often apply separately for state tax exemptions and provide proof of their federal determination letter.
Sales and Use Tax remains one of the most complex areas. Many states exempt nonprofits from paying sales tax on purchases related to their exempt purposes, but the definition of “related” varies by state. A nonprofit can pay sales tax in one state on a supply that another state considers exempt. Some states grant blanket exemptions; others require nonprofit organizations to register and demonstrate that each purchase supports their charitable mission.
Property Tax Exemption is another area where state and local rules diverge widely. Most states offer property tax exemptions for nonprofits, but the criteria remain vague and municipalities enforce them inconsistently. Some communities have adopted voluntary Payment in Lieu of Taxes (PILOT) programs, which allow nonprofits to make voluntary payments to local governments to offset lost tax revenue. While these payments are technically voluntary, nonprofits often negotiate them to maintain good community relationships and avoid political pressure.
State Income Tax rules vary significantly. Some states automatically exempt nonprofits with federal 501(c)(3) status; others require separate application and documentation. A nonprofit receiving out-of-state revenue may face state income tax in multiple jurisdictions. Organizations operating in multiple states should verify each state’s specific requirements to ensure compliance.
Religious Organization Tax Rules: Unique Considerations
Religious nonprofits receive special treatment under federal tax law. Churches, synagogues, temples, and mosques automatically qualify for tax exemption without filing an IRS application, though many choose to apply for recognition anyway. This automatic status recognizes the constitutional separation of church and state and the role of religious institutions in communities.
However, automatic exemption does not eliminate all obligations. Religious nonprofits with employees still must pay FICA and FUTA taxes. But here’s where religious organizations differ: they can apply for a FICA exemption by filing Form 8274 before hiring any employees. If granted, the organization does not withhold or pay Social Security and Medicare taxes. However, employees become responsible for self-employment taxes on their own tax returns, which can create a significant burden for low-wage workers.
A recent Supreme Court ruling expanded exemptions for religious nonprofits. The Court ruled that religious charitable foundations can opt out of unemployment taxes, even if the foundation provides primarily secular services. The decision emphasized that the distinction between religious and secular services was too narrow to justify requiring unemployment taxes, and that forcing such taxes would discriminate among religions.
Employment Tax Details: What Nonprofits Must Withhold and Pay
Every nonprofit with employees faces employment tax obligations. Federal income tax withholding is calculated using the employee’s Form W-4 and IRS Publication 15. The nonprofit must deposit withheld taxes with the federal government, typically on a monthly or semi-weekly schedule depending on the organization’s size. Forms must be filed quarterly (Form 941) and annually (Form 940 for FUTA).
Social Security and Medicare taxes (FICA) are split evenly between employer and employee. The nonprofit withholds 7.65% from employee paychecks and contributes an additional 7.65% from its own funds. These taxes apply to nearly all nonprofit employees; church employees are the primary exception if the church applied for FICA exemption. The combination of withholding, matching, and depositing creates significant compliance work for nonprofit accounting staff.
Nonprofits must also obtain employer identification numbers (EINs) and keep detailed payroll records. Independent contractors must provide W-9 forms, and if a contractor is paid $600 or more in a calendar year, the nonprofit must issue a 1099-NEC form. Failing to gather contractor W-9 forms at hiring creates audit risk and complicates year-end reporting. This is an easy mistake to avoid but a common audit finding.
Excess Benefit Transactions: When Nonprofit Leaders Face Personal Taxes
An excess benefit transaction occurs when a nonprofit provides an economic benefit to an insider (a disqualified person such as an officer, director, or highly paid employee) that exceeds what the organization receives in return. Paying unreasonable compensation to executives is a common excess benefit form. For example, if a nonprofit director negotiates a $500,000 salary when the market rate for similar positions is $150,000, the difference constitutes an excess benefit.
The consequences are severe. The disqualified person must pay back the excess amount plus interest and penalties, and if uncorrected within a specified time, the interest penalty rises significantly. Any nonprofit manager knowingly participating in the transaction faces a 10% penalty tax on the excess benefit, capped at $20,000. The IRS can also revoke the organization’s tax-exempt status entirely if the violation reflects a pattern of misconduct or private inurement.
Organizations protect themselves by documenting that compensation decisions follow a rebuttable presumption of reasonableness. This means the organization conducted an independent market study, obtained comparable salary data, documented the decision-making process, and approved compensation by a quorum of board members without the beneficiary present. Even honest mistakes result in penalties if procedures were not followed properly.
Private Foundations and Excise Taxes: Special Rules for Restricted Organizations
Private foundations are nonprofits that did not meet the public charity requirements because they rely primarily on investment income or family gifts rather than broad public support. These organizations face additional tax obligations beyond those of public charities. Private foundations must file Form 990-PF annually regardless of assets or revenues.
Private foundations pay a 2% excise tax on net investment income each year, which can be reduced to 1% if the foundation donates more to charitable causes than legally required. This tax exists because Congress wanted to ensure that private foundations actually distribute funds to help people rather than accumulating wealth indefinitely. A foundation making no charitable grants pays tax on every dollar earned in interest, dividends, or capital gains.
Self-dealing rules impose even harsher penalties. If a private foundation engages in prohibited transactions with disqualified persons, excise taxes apply to both the disqualified person and foundation managers. A 10% excise tax initially applies to the disqualified person and 5% to foundation managers who approved it. If the transaction is not corrected within a specific time period, the tax increases to 200% for the disqualified person and 50% for managers, creating massive financial exposure.
Self-dealing includes common activities that might seem innocent. A foundation lending money to a board member’s business, purchasing property from a founder at fair market value, or hiring a substantial contributor as a consultant can all trigger self-dealing penalties. The rules apply even if the transaction occurs at fair market prices and benefits no one personally.
Annual Reporting Requirements: Form 990 and Compliance
Most tax-exempt nonprofits must file an annual information return with the IRS—either Form 990, Form 990-EZ, or Form 990-N (the e-postcard). The form due date is the 15th day of the 5th month after the organization’s fiscal year ends. If the fiscal year ends December 31, the deadline is May 15. This public document reveals the nonprofit’s financial information, governance structure, programs, and executive compensation.
Which form applies depends on financial activity:
| Financial Size | Form Required |
|---|---|
| Smallest nonprofits: $50,000 or less annual receipts | Form 990-N (e-postcard) |
| Small to mid-size: $50,000 to $200,000 annual receipts and under $500,000 assets | Form 990-EZ |
| Mid to large: $200,000+ annual receipts and $500,000+ total assets | Form 990 (full form) |
Organizations with unrelated business income of $1,000 or more must file Form 990-T in addition to their regular 990 form. This requirement applies regardless of the organization’s size or which 990 form it files.
The most devastating consequence of noncompliance is automatic revocation: failure to file for three consecutive years automatically revokes tax-exempt status. Reinstatement requires applying to the IRS, and unless the organization requests retroactive reinstatement, all activities during the revocation period become taxable. Donors cannot claim deductions for contributions made while the organization lacked tax-exempt status, creating significant funding disruptions.
Common Nonprofit Tax Mistakes: Pitfalls to Avoid
Mixing restricted and unrestricted funds. Donors often earmark contributions for specific programs. Using restricted grant money to cover general operating expenses creates legal and financial problems. If audited, the nonprofit might lose the donor’s trust, face grant repayment demands, and trigger funder investigations into governance and spending practices.
Misreporting unrelated business income. The Tax Cuts and Jobs Act changed how nonprofits report UBIT from multiple sources. Organizations can no longer aggregate income from different unrelated businesses or use losses from one activity to offset gains from another. Each unrelated business must be reported separately in “siloed” income calculations. Errors in these calculations draw IRS attention and can result in penalties and interest.
Failing to gather contractor W-9 forms. Nonprofits must obtain W-9 forms from all independent contractors at the start of the working relationship. Without these forms, the nonprofit cannot issue required 1099-NEC forms at year-end, creating incomplete tax reporting and IRS audit triggers. This is an easy mistake to avoid but a common audit finding.
Participating in prohibited political activities. 501(c)(3) organizations are absolutely prohibited from participating in political campaigns or intervening on behalf of candidates. This applies from presidential races down to local school board elections. A single violation—donating organizational funds to a campaign, encouraging staff to volunteer on company time, or allowing facilities to be used for campaign events—puts tax-exempt status at immediate risk.
Misallocating administrative and program expenses. Under pressure to show that most funds go to programs (rather than overhead), nonprofits sometimes misclassify administrative costs as program expenses. This inflates program spending percentages that donors and foundations scrutinize. If discovered, it damages donor trust, triggers foundation investigations, and creates IRS audit risk.
Ignoring online sales and incidental income. Nonprofits often generate taxable unrelated business income through online activities without realizing it. Selling t-shirts with the organization’s logo, renting donor mailing lists, accepting website advertising, or operating an online gift shop creates UBIT. The organization must identify these activities, track the income, and file Form 990-T if reaching the $1,000 threshold.
Incomplete or inaccurate Form 990 filings. If Form 990 contains missing information, the IRS will not consider it filed until corrected. When the IRS notices an incomplete return, organizations have 10 days to correct errors and provide a reasonable cause explanation. Missing that deadline results in penalties of $20 per day for each day late, up to a maximum of $10,500 or 5% of gross receipts.
Real-World Examples: How Tax Issues Impact Nonprofits
The American Red Cross monetary management crisis. Following the September 11th terrorist attacks, the American Red Cross received unprecedented donations for the Liberty Fund earmarked to help victims and their families. However, leadership diverted a substantial portion of these restricted funds to other organizational needs, sparking public outrage. The resulting scandal forced the organization’s president to resign, damaged donor trust for years, and led to congressional hearings. While the Red Cross eventually directed all Liberty Fund money to victims, the organization paid over $21 million in federal fines between 2003 and 2008 for unrelated compliance failures in blood screening and collection. This real-world case demonstrates how mishandling restricted funds and poor financial governance create cascading consequences.
A children’s nonprofit loses tax-exempt status due to noncompliance. A nonprofit serving foster children failed to file Form 990 for three consecutive years. Leadership assumed the organization was too small to require federal filings and did not understand IRS rules. When donors suddenly could no longer claim tax deductions for their gifts, contributions plummeted. The nonprofit’s tax-exempt status was automatically revoked, and reinstatement required lengthy IRS processes during which the organization operated as a taxable entity. Eventually, the organization ceased operations entirely, leaving a major gap in services for vulnerable children in the community.
A religious nonprofit misunderstands employment tax rules. A faith-based community service organization assumed that religious designation exempted it from paying employment taxes. For three years, the organization did not withhold FICA taxes from employee paychecks or file required payroll forms. When the IRS discovered the violations during a routine audit, the organization faced massive back taxes, penalties, and interest. The organization was forced to reinstate employees’ withheld taxes retroactively, and leaders faced personal liability for willful violations of federal law.
Do’s and Don’ts for Nonprofit Tax Compliance
DO file Form 990 on time every year. Set calendar reminders for the deadline (May 15 for December 31 year-end organizations). Missing the deadline by even one day triggers penalties. Missing it for three years results in automatic revocation of tax-exempt status. Late filing causes donors to lose tax deduction eligibility and makes reinstatement complicated.
DON’T assume your nonprofit is too small to file Form 990. Even organizations with minimal revenue must file either Form 990-N (the e-postcard) or Form 990-EZ. The IRS takes this obligation seriously and has published lists of organizations losing their status for noncompliance. The IRS first used this enforcement power in 2011 by revoking approximately 275,000 organizations in a single action.
DO document the reasonableness of executive compensation. Before approving any officer or executive compensation, obtain market salary data for comparable positions. Document the board’s decision-making process, including who attended the meeting and how the decision was made. Ensure the beneficiary did not participate in voting. This creates a rebuttable presumption of reasonableness that protects against excess benefit transaction penalties.
DON’T engage in political campaign activity. Any use of nonprofit resources—money, staff time, facilities, or donor mailing lists—for campaign purposes violates the prohibition on political intervention. This applies to all levels of elections and includes both direct support for candidates and indirect intervention through issue advocacy tied to electoral outcomes.
DO maintain separate accounting for restricted and unrestricted funds. Establish clear policies about when and how restricted funds can be used. Restricted grants must be used only for their intended purpose. If a grant runs a budget surplus, ask the funder before using it for other needs. Violating donor intent can trigger repayment demands, loss of future funding, and auditor findings.
DON’T assume state and local tax-exempt status flows automatically from federal status. Apply separately for state income tax, sales tax, and property tax exemptions. Provide your federal determination letter and follow each state’s specific procedures. Failure to do so can result in unexpected tax bills and penalties on purchases or property.
DO track unrelated business income separately and file Form 990-T if threshold is met. Keep careful records of all revenue-generating activities unrelated to your mission. If the total reaches $1,000 or more, you must file Form 990-T and pay taxes. Do not combine UBIT from multiple sources into a single calculation—each unrelated business must be siloed and reported separately.
DON’T misclassify administrative expenses as program expenses. While donors prefer seeing high percentages of funds go to programs, artificially inflating program expenses damages credibility when discovered. Be honest about administrative needs; most donors accept reasonable overhead if the organization’s work creates impact.
Pros and Cons: Tax-Exempt Status Benefits Versus Obligations
| Advantage | Disadvantage |
|---|---|
| Federal income tax exemption on donations and mission revenue | Employment taxes still required on all employee wages and benefits |
| Tax-deductible donations incentivize larger donor gifts | Annual Form 990 filings create public scrutiny and compliance burden |
| Reduced nonprofit postal rates significantly lower mailing costs | Political activity restrictions eliminate important advocacy tools for 501(c)(3) groups |
| State and local tax breaks including property and sales exemptions | UBIT taxes apply on unrelated income despite tax-exempt status |
| Access to grants reserved for tax-exempt organizations only | Penalty taxes and revocation risk if compliance requirements are missed |
| Donor trust created by IRS recognition and public Form 990 filings | Excess benefit transaction rules restrict insider compensation and transactions |
FAQs
Do nonprofits pay federal income tax?
No. Tax-exempt nonprofits with 501(c)(3) status do not pay federal income tax on donations or mission-related revenue. However, they do pay employment taxes on employee wages and taxes on unrelated business income above $1,000.
Do nonprofits have to pay employment taxes?
Yes. Nonprofits with employees must withhold federal income tax, FICA (Social Security and Medicare), and in most cases FUTA (federal unemployment tax) from employee paychecks. These taxes apply regardless of a nonprofit’s tax-exempt status. Religious organizations can opt out of FICA taxes by filing Form 8274 before hiring.
What is unrelated business income tax (UBIT)?
UBIT is a federal tax that applies when a nonprofit regularly generates income from a trade or business unrelated to its charitable purpose. Income from selling merchandise, renting facilities for non-mission purposes, or advertising typically triggers UBIT. If unrelated income reaches $1,000 or more, the nonprofit must file Form 990-T.
What happens if a nonprofit doesn’t file Form 990?
Automatic revocation of tax-exempt status occurs if a nonprofit fails to file Form 990 (or Form 990-N or 990-EZ) for three consecutive years. Revocation means the organization becomes taxable, donors cannot claim deductions, and reinstatement requires extensive IRS processes.
Are nonprofits exempt from state and local taxes?
Mostly, but not automatically. Federal 501(c)(3) status does not automatically grant state income tax, sales tax, or property tax exemptions. Organizations must apply separately for state exemptions in each state where they operate. Some states grant automatic exemptions; others require detailed applications.
Can a nonprofit leader face personal tax penalties?
Yes. If a nonprofit engages in an excess benefit transaction—paying unreasonable compensation to an insider—the disqualified person faces a 25% penalty tax on the excess amount, plus interest. Nonprofit managers knowingly approving such transactions face a 10% penalty tax, capped at $20,000.
What is an excess benefit transaction?
An excess benefit transaction occurs when a nonprofit provides an economic benefit to an insider (officer, director, highly paid employee) that exceeds what the organization receives in return. Unreasonable executive compensation is the most common example. Penalties include returning the excess benefit, paying interest, and potential revocation.
Do private foundations face different tax rules than public charities?
Yes. Private foundations must pay a 2% excise tax on investment income annually. They face strict self-dealing prohibitions that trigger harsh penalty taxes (10% initial, 200% if uncorrected). Private foundations are subject to greater restrictions and reporting requirements than public charities.
Can a nonprofit lose its tax-exempt status for other reasons?
Yes. Nonprofits lose tax-exempt status for participating in political campaigns, engaging in substantial lobbying (for 501(c)(3) groups), allowing private inurement (insiders benefiting from organization), or failing to comply with IRS filing requirements. Once revoked, tax-exempt status is difficult to restore.
Do churches pay the same employment taxes as other nonprofits?
Generally yes, but churches can apply for exceptions. Churches can request an exemption from FICA taxes by filing IRS Form 8274 before hiring employees. Churches are also exempt from filing Form 990 (though many file voluntarily). Recent Supreme Court rulings have expanded unemployment tax exemptions for religious organizations.
What should a nonprofit do if it discovers a tax compliance error?
Act immediately. Contact a nonprofit tax professional to assess the violation’s severity. Some errors can be corrected with amended filings; others require IRS forms and penalties. Filing correction amendments promptly demonstrates reasonable cause and often results in reduced penalties. Delaying correction worsens the situation significantly.
How does a nonprofit file Form 990-T for unrelated business income?
File by the organization’s tax return deadline (usually May 15 for December 31 year-end organizations). Form 990-T reports all unrelated business income separately for each business activity. If estimated tax liability reaches $500 or more, quarterly estimated payments using Form 990-W must be made.
Can a nonprofit operate multiple unrelated businesses without paying UBIT?
No. Each unrelated business activity generating income must be reported separately under siloed income calculations. The nonprofit cannot aggregate income from different activities or use losses from one business to offset gains from another. If total unrelated income reaches $1,000, Form 990-T must be filed.
Related reading
- Can a Nonprofit Operate Without a 501(c)(3)? (w/Examples) + FAQs
- Do Churches Qualify for Microsoft Nonprofit? (w/Examples) + FAQs
- How Much Would It Cost to Start a Nonprofit? (w/Examples) + FAQs
- Do All Nonprofits Have to File a 990? (w/Examples) + FAQs
- How Does a Business Qualify as a Nonprofit? (w/Examples) + FAQs
- How to Fill Out IRS Form 990-EZ (w/Examples) + FAQs
- Can an Unincorporated Association Be a 501c3? + FAQs