Contributed income is the money and property a nonprofit receives when the donor gets nothing of significant material value in return. It is a one-sided transaction: the donor gives, the organization acknowledges the gift, and no product, admission, or fee-based service changes hands. That distinction from earned income drives how the organization records the revenue, what it must tell the donor, what it reports to the IRS, and whether it keeps its status as a public charity.
Where Contributed Income Comes From
Individual donors account for a large share of most nonprofits’ contributed income. Gifts arrive as one-time checks, recurring monthly donations, online campaigns, and bequests. Amounts range from a few dollars through a crowdfunding platform to seven-figure gifts from high-net-worth individuals. What unites them is that the donor expects nothing back.
Foundations award grants through competitive applications. A private family foundation might fund cancer research; a community foundation might target local housing. As long as the foundation is not purchasing a specific deliverable, the grant is contributed income to the recipient.
Corporate philanthropy shows up as direct cash grants, matching gift programs that double employee donations, and donations of inventory or equipment. Government agencies also provide contributed income through grants that support broad public goals like education, healthcare, or disaster relief. The key line is whether the government is buying a product or transferring public funds to advance a mission. Only the second is contributed income.
Restricted and Unrestricted Contributions
Accounting standards require nonprofits to sort contributions into two buckets: those with donor restrictions and those without.1Financial Accounting Standards Board. Statement of Financial Accounting Standards No. 116 Accounting for Contributions Received and Contributions Made Unrestricted funds give the board flexibility to spend money wherever the organization needs it most, from salaries to rent to a new program.
Restricted contributions come with instructions. A donor might require that a gift fund only scholarships, or that it be spent within a specific time frame. Permanently restricted gifts, like endowments, keep the principal invested forever and allow only the investment returns to be spent. The organization has a legal obligation to honor these restrictions; ignoring them can trigger lawsuits, force the return of funds, or damage future fundraising. Fund accounting tracks the two categories separately, and financial statements must present both.
Non-Cash Gifts, Services, Crypto, and Vehicles
Contributed income is not always cash. Gifts-in-kind include office equipment, medical supplies, land, or artwork donated to further the organization’s mission. The organization records these at fair market value on the date of transfer.2Internal Revenue Service. IRS Publication 561 – Determining the Value of Donated Property For office furniture, fair market value is easy to estimate. Real estate or fine art typically needs a formal appraisal.
When a non-cash donation exceeds $5,000 in claimed value (other than publicly traded securities), the donor must obtain a qualified appraisal and file Form 8283 with their tax return.3Internal Revenue Service. Charitable Organizations – Substantiating Noncash Contributions The organization doesn’t perform the appraisal, but it does sign the donor’s Form 8283 to acknowledge receipt.
Donated professional time counts as contributed income only under specific conditions. The service must require specialized skills, be provided by someone who actually possesses those skills, and be something the organization would otherwise pay for. An attorney providing free legal counsel or an electrician rewiring a facility qualifies. A volunteer stuffing envelopes does not, because the work does not require specialized training.
Cryptocurrency is treated as property for federal tax purposes, not cash.4Internal Revenue Service. Frequently Asked Questions on Virtual Currency Transactions A Bitcoin or Ethereum donation is handled like any other non-cash gift, and deductions above $5,000 require a qualified appraisal and Form 8283.5Internal Revenue Service. Instructions for Form 8283 (Rev. December 2025)
Vehicles are their own case. When a charity receives a donated car, boat, or airplane and then sells it rather than using it in operations, the donor’s deduction is generally limited to the actual sale price, not the vehicle’s blue book value. The charity must provide the donor with Form 1098-C as a written acknowledgment.6Internal Revenue Service. IRS Guidance Explains Rules for Vehicle Donations
What the Organization Must Give the Donor in Writing
Two acknowledgment rules trip up nonprofits most often. Both protect the donor’s deduction and the organization’s compliance record.
Written Acknowledgment at $250
A donor cannot claim a tax deduction for any single contribution of $250 or more without a written acknowledgment from the organization.7Internal Revenue Service. Charitable Contributions – Written Acknowledgments The acknowledgment must include the organization’s name, the amount of any cash contribution or a description of non-cash property (without assigning a value), and a statement about whether the organization provided any goods or services in return. If it did, the acknowledgment needs a good-faith estimate of that value. The donor must receive the document by the time they file their return for the year of the gift.
Quid Pro Quo Over $75
When a donor pays more than $75 and receives something in return, the contribution is only partially deductible. The deductible portion is the amount exceeding the fair market value of what the donor received. At a $200 fundraising dinner where the meal is worth $60, only $140 qualifies. The organization must provide a written disclosure explaining that limit and estimating the value of the goods or services provided.8Office of the Law Revision Counsel. 26 U.S. Code 6115 – Disclosure Related to Quid Pro Quo Contributions Penalties apply when organizations skip this disclosure.
Annual Reporting to the IRS
Tax-exempt organizations file annual information returns that disclose how much contributed income came in and how it was spent. The form depends on size.
Organizations with gross receipts of $50,000 or less can file Form 990-N, the electronic e-Postcard.9Internal Revenue Service. Annual Electronic Notice (Form 990-N) for Small Organizations FAQs – Who Must File Larger organizations file Form 990 or Form 990-EZ, with detailed breakdowns of revenue, expenses, and program accomplishments.10Internal Revenue Service. Exempt Organization Annual Filing Requirements Overview Form 990 is due on the 15th day of the fifth month after the fiscal year ends. For calendar-year filers, that’s May 15.11Internal Revenue Service. Exempt Organization Filing Requirements – Form 990 Due Date
Organizations that receive $5,000 or more from any single contributor during the year must report those contributions on Schedule B of Form 990.12Internal Revenue Service. Instructions for Schedule B (Form 990) (12/2024) For 501(c)(3) organizations and 527 political organizations, donor names and addresses must be included on Schedule B and submitted to the IRS. Those donor identities are not released to the public; Schedule B contributor names are redacted from 501(c)(3) returns made available for public inspection. Most other tax-exempt organizations are no longer required to report donor names on Schedule B at all, but they must still keep that information in their own records.
Filing matters. An organization that fails to file its required return for three consecutive years automatically loses its tax-exempt status.13Office of the Law Revision Counsel. 26 USC 6033 – Returns by Exempt Organizations The revocation is automatic under the statute. Once revoked, the organization can no longer receive tax-deductible donations, and its income becomes subject to regular corporate tax rates. Small organizations that only owe the e-Postcard are subject to the same rule.
Why the Mix of Contributed Income Matters: The Public Support Test
Not every 501(c)(3) is automatically a public charity. The IRS presumes all 501(c)(3) organizations are private foundations unless they demonstrate broad public support, and contributed income is the core of that calculation.
The most common version of the test, for organizations classified under Sections 509(a)(1) and 170(b)(1)(A)(vi), requires that at least one-third of total support come from public sources: individual donors, government grants, and contributions from other public charities. The test is measured over a rolling five-year period.14Internal Revenue Service. Form 990, Schedules A and B – Public Charity Support Test Organizations that fall below one-third may still qualify under a facts-and-circumstances test if public support is at least 10 percent and the organization actively solicits broad public donations.
Failing the test triggers reclassification as a private foundation, with real consequences: excise taxes on investment income, stricter payout requirements, and limits on self-dealing with insiders. Donors face lower deduction ceilings for gifts to private foundations, which can discourage major gifts. An organization reclassified as a private foundation generally cannot convert back to public charity status for at least five years.
The Single Audit Threshold for Federal Grants
Nonprofits that receive significant government grants face an additional layer of accountability. Under the federal Uniform Guidance, an organization that spends $1,000,000 or more in federal awards during its fiscal year must undergo a Single Audit.15eCFR. 2 CFR 200.501 – Audit Requirements The $1,000,000 level applies to fiscal years beginning on or after October 1, 2024, up from the previous $750,000 threshold.
A Single Audit examines whether the organization spent federal funds in compliance with grant terms and federal regulations. Results are submitted to the Federal Audit Clearinghouse and become publicly accessible. The audit itself can run tens of thousands of dollars depending on organization size and program complexity, so crossing the spending threshold has budget implications beyond the grants themselves.
State Registration Before You Ask the Public for Money
Before actively soliciting contributed income, most nonprofits must register with state charity regulators. The majority of states require a charitable solicitation registration, often filed annually, before an organization can legally ask the public for donations. Fees and requirements vary; some states charge nothing, others impose sliding-scale fees based on revenue. Fundraising across state lines, common with online campaigns, can trigger registration requirements in every state where donors are located. Skipping this step risks fines, cease-and-desist orders, or forced return of donations collected in violation of state law.