501(c)(3) organizations are exempt from federal income tax, but they still pay some taxes

A 501(c)(3) is a nonprofit organization recognized by the IRS as tax-exempt. This means the organization itself does not pay federal income tax on money it receives or earns. However, tax-exempt status does not mean zero taxes. A 501(c)(3) still pays property taxes, payroll taxes, and sales taxes in most situations — the same way any other entity does.

The core exemption covers only federal income tax on the organization's net income. State and local governments often grant their own exemptions for property and sales taxes, but this varies by location and is not automatic. An organization that is exempt federally may still owe state income tax or local property tax depending on where it operates.

Key Takeaways

  • 501(c)(3) organizations do not pay federal income tax, but they must still file Form 990 with the IRS each year if they have gross receipts over $50,000.
  • Payroll taxes (Social Security and Medicare) are owed on employee wages, and the organization must withhold and pay these just like any employer.
  • Property tax exemptions are granted by individual states and counties, not the federal government, so a 501(c)(3) may owe property tax in some locations.
  • Sales tax rules vary by state; some states exempt 501(c)(3) purchases, while others do not.
  • Unrelated business income — money earned from activities outside the organization's stated mission — is taxed at corporate rates.

Federal income tax exemption and Form 990 filing

A 501(c)(3) does not pay federal income tax on donations, grants, membership fees, or other revenue that supports its charitable mission. This is the main benefit of the status. However, the organization must still report its finances to the IRS every year on Form 990 or Form 990-N (e-postcard), depending on size.

Organizations with gross receipts under $50,000 per year can file Form 990-N electronically and do not need to submit detailed financial statements. Organizations with receipts between $50,000 and $200,000 file Form 990-N or the shorter Form 990-EZ. Organizations with receipts over $200,000 must file the full Form 990. These forms are public records; anyone can view them on the IRS website or through nonprofit databases.

Filing Form 990 is required to maintain tax-exempt status. An organization that fails to file for three consecutive years loses its 501(c)(3) status automatically, and the IRS will assess back taxes and penalties.

Payroll taxes on employee wages

A 501(c)(3) must pay payroll taxes on every employee's wages. This includes the employer's share of Social Security and Medicare taxes (currently 7.65 percent combined), plus federal and state unemployment insurance. The organization also withholds the employee's share (7.65 percent) from paychecks and remits both amounts to the IRS.

These taxes are not optional and do not change because the organization is nonprofit. A 501(c)(3) with ten employees owes the same payroll taxes as a for-profit business with ten employees. The tax-exempt status applies only to income tax on the organization's net revenue, not to employment taxes.

Organizations must file quarterly payroll tax returns (Form 941) and annual W-2 forms for each employee. Failure to pay payroll taxes can result in personal liability for officers and board members, even if the organization itself is tax-exempt.

Property tax and state income tax variations

Property tax exemptions for 501(c)(3) organizations are granted by individual states and counties, not by the federal government. Some states automatically exempt nonprofit property from local property tax; others require the organization to explore for an exemption. A few states do not grant property tax exemptions to nonprofits at all.

For example, New York State grants property tax exemptions to 501(c)(3) organizations that serve a public benefit, but the organization must explore through the local assessor's office and meet specific criteria. California requires a separate process to the county assessor. Texas exempts certain nonprofits but not others, depending on the type of work they do.

State income tax also varies. Most states do not tax 501(c)(3) organizations on income related to their charitable mission. However, some states impose a corporate franchise tax or annual report fee on all corporations, including nonprofits, regardless of tax-exempt status. A few states tax unrelated business income at the state level even when it is exempt federally.

Sales tax on purchases and fundraising

Sales tax exemptions for 501(c)(3) purchases depend on state law. Some states exempt nonprofits from sales tax on all purchases; others exempt only purchases directly related to the organization's mission. A few states do not grant sales tax exemptions to nonprofits at all.

For example, a food bank in a state that exempts nonprofits from sales tax would not pay tax on food purchases. However, the same food bank would pay sales tax on office supplies in a state that only exempts mission-related purchases. A nonprofit that sells merchandise for fundraising may owe sales tax on those sales in any state, because the revenue is not a donation.

To claim a sales tax exemption, a 501(c)(3) typically must register with the state tax authority and provide a resale certificate or nonprofit exemption certificate at the time of purchase. Without the certificate, the vendor will charge sales tax.

Unrelated business income tax (UBIT)

A 501(c)(3) that earns money from activities unrelated to its charitable mission must pay federal income tax on that income. This is called unrelated business income tax, or UBIT. The income is taxed at corporate rates, currently 21 percent.

For example, a nonprofit museum that operates a gift shop pays tax on gift shop profits because retail sales are not part of the museum's educational mission. A nonprofit that rents out office space to a for-profit business pays tax on the rental income. However, a nonprofit that sells items made by people it serves (such as a job training program selling crafts) may not owe UBIT if the activity is substantially related to the mission.

Organizations with unrelated business income over $1,000 must file Form 990-T with the IRS and pay tax on the net income. The threshold is low, so even small amounts of unrelated income trigger a filing requirement.

Excise taxes and other federal obligations

Some 501(c)(3) organizations must pay federal excise taxes depending on their activities. Private foundations pay a 1 or 2 percent excise tax on net investment income. Organizations that operate a hospital, school, or other facility may owe taxes related to those operations.

Additionally, a 501(c)(3) that fails to meet its charitable mission or engages in prohibited activities (such as substantial lobbying or political campaign activity) may lose its tax-exempt status. Once status is lost, the organization owes back taxes and penalties on all years it was not in compliance.

Organizations must also comply with state charitable solicitation laws, which often require registration and annual reporting. These are not taxes but regulatory fees that some states charge to nonprofits that fundraise within their borders.

Frequently Asked Questions

Does a 501(c)(3) have to pay property tax?

It depends on the state and county. Federal tax-exempt status does not automatically grant property tax exemptions. Each state and locality sets its own rules. A 501(c)(3) may need to explore separately for a property tax exemption and meet local criteria. Contact your county assessor's office to learn whether your organization qualifies in your area.

What happens if a 501(c)(3) does not file Form 990?

The IRS will send notices requesting the filing. If the organization does not file for three consecutive years, it automatically loses 501(c)(3) status. Once status is revoked, the organization becomes taxable and owes back taxes on all years it was not in compliance, plus penalties and interest.

Do 501(c)(3) employees pay income tax on their wages?

Yes. Employees of a 501(c)(3) pay federal, state, and local income tax on their wages just like employees of any other employer. The organization's tax-exempt status does not affect employee income taxes. The organization withholds taxes from paychecks and remits them to the IRS.

Can a 501(c)(3) sell merchandise without paying sales tax?

Not usually. Sales tax exemptions explore to donations and purchases the organization makes, not to merchandise it sells. If a 501(c)(3) sells items for fundraising, it must collect and pay sales tax in most states. Some states exempt sales of items made by people the organization serves, but this varies by location.

What is unrelated business income, and how is it taxed?

Unrelated business income is money earned from activities outside the organization's stated charitable mission. It is taxed at the corporate rate (currently 21 percent). For example, a nonprofit museum's gift shop profits are unrelated income. Organizations with unrelated income over $1,000 must file Form 990-T and pay tax on the net amount.