Nonprofit Form 990 Filing Guide: Which Version, What It Discloses, and What Triggers an Audit

Every organization exempt under section 501(a) files an annual return under IRC 6033, and the version depends on size: the Form 990-N e-Postcard when gross receipts are normally $50,000 or less, Form 990-EZ under $200,000 of receipts and $500,000 of assets, and the full Form 990 above that. Churches and their integrated auxiliaries don’t file. The return is due the 15th day of the fifth month after year end, a six-month extension is automatic, and an organization that fails to file for three consecutive years has its exemption “considered revoked” by statute, with no warning beyond the notices the IRS is required to send.

Which version of Form 990 does my nonprofit file?

The one your numbers put you in. IRC 6033(a)(1) requires “every organization exempt from taxation under section 501(a)” to file an annual return. The Form 990 instructions require the full form at “gross receipts greater than or equal to $200,000, or … total assets greater than or equal to $500,000,” allow the 990-EZ below both lines, and send receipts “normally $50,000 or less” to the 990-N notice. Gross receipts means everything received “without subtracting any costs or expenses.”

Version	Who files it	What it asks	Authority
Form 990-N (e-Postcard)	Gross receipts normally not more than $50,000	Name, EIN, address, principal officer, website, confirmation of the receipts level	6033(i), Rev. Proc. 2011-15
Form 990-EZ	Gross receipts under $200,000 and total assets under $500,000 at year end	Summary revenue, expenses, balance sheet, officers and compensation, governance questions	Form 990 instructions
Form 990	Gross receipts of $200,000 or more, or total assets of $500,000 or more	Full revenue statement, functional expenses, balance sheet, Part VI governance, Part VII compensation, schedules	Form 990 instructions
No return	Churches, their integrated auxiliaries, conventions or associations of churches; exclusively religious activities of a religious order	Nothing under 6033(a)(1)	6033(a)(3)(A)

• “Normally” is a multi-year look, which the instructions cover in their Appendix B, so one strong year doesn’t by itself push a small organization out of the 990-N.
• The $50,000 line comes from Rev. Proc. 2011-15, which relieved from Form 990 filing organizations “whose annual gross receipts are normally not more than $50,000,” up “from the previous filing threshold of … $25,000.” Those organizations still owe the electronic notice under 6033(i), which the same procedure says “is satisfied by submitting a Form 990-N e-Postcard.”
• A 509(a)(3) supporting organization files Form 990 or 990-EZ “even if its gross receipts are normally $50,000 or less,” per the instructions. Private foundations file Form 990-PF whatever their size.
• You can always file a fuller version than required. Grantmakers and state regulators often want to see a 990-EZ or 990 from an organization that could have sent the postcard.

When is Form 990 due, and how do I extend it?

The 15th day of the fifth month after the close of the tax year, so May 15 for a calendar-year organization and November 15 for a June 30 year end. That’s IRC 6072(e): the return “shall be filed on or before the 15th day of the 5th month following the close of the taxable year.” Form 8868 gives “an automatic 6-month extension of time to file,” with no reason required, which moves a calendar-year filer to November 15.

• File the extension before the original due date. The penalty clock runs from the due date “determined with regard to any extension of time for filing,” so a timely Form 8868 stops it; a late one doesn’t.
• The extension covers the information return. Any unrelated business income tax owed with a Form 990-T is a separate return with its own payment, and an extension of time to file is never an extension of time to pay.
• The version you file is judged on the year being reported, so an organization that crossed $200,000 in receipts during the year files the full 990 for that year even though it filed a 990-EZ the year before.

What does it cost to file late, and what happens after three missed years?

A daily penalty first, then the loss of exemption. IRC 6652(c)(1)(A) sets the base at “$20 for each day during which such failure continues,” capped at “the lesser of $10,000 or 5 percent of the gross receipts of the organization for the year,” and $100 a day up to $50,000 above $1,000,000 of receipts. Indexed for returns due in 2027, Rev. Proc. 2025-32 makes that $25 a day up to the lesser of $13,000 or 5%, and $130 a day up to $66,500 above $1,339,500 of receipts.

• For 2025 the indexed figures per Rev. Proc. 2024-40 were $25 a day, the same $13,000 cap, and $130 a day up to $65,000 for receipts above $1,309,500.
• The person responsible can be penalized too. After a written IRS demand naming a date, 6652(c)(1)(B) charges “the person failing to so comply $10 for each day” past that date, up to $5,000 per return under the statute ($6,500 indexed).
• The penalty applies to the 990 and 990-EZ. Rev. Proc. 2014-11 notes that 6652(c)(1)(E) exempts the 990-N notice from it, which is why the only real sanction for a small organization that never files is the one below.
• Three consecutive years. IRC 6033(j)(1)(B): an organization that “fails to file an annual return or notice required under either subsection for 3 consecutive years” has its exempt status “considered revoked on and after the date set by the Secretary for the filing of the third annual return or notice,” and the IRS publishes the list. After two missed years the IRS must send a notice under 6033(j)(1)(A); the third miss is automatic.
• Getting back. Reinstatement requires a new application under 6033(j)(2), with a user fee of $600 for Form 1023 or $275 for Form 1023-EZ per the IRS fee page. Rev. Proc. 2014-11 offers what it calls “streamlined retroactive reinstatement” to an organization that was eligible for the 990-EZ or 990-N in each of the three years and “applies not later than 15 months after the later of the date of the Revocation Letter or the date on which the IRS posted the organization’s name on the Revocation List.” Larger organizations inside 15 months use the reasonable-cause route; past 15 months the standard is stricter.
• Gifts received while the status was revoked were gifts to a taxable entity. The donors find out when the acknowledgment they relied on turns out to have come from an organization that wasn’t on the list.

What does Schedule A require for public charity status?

Proof that you’re publicly supported rather than a private foundation. For status under 170(b)(1)(A)(vi), Treas. Reg. 1.170A-9(f) sets a “33 1/3 percent support test” over a five-year period, with a fallback “facts and circumstances test” where public support “equals at least 10 percent of the total support.” Each donor counts as public support only up to “two percent of the organization’s total support for such period,” the mechanism that catches organizations living on one or two funders.

• The 2% cap in 1.170A-9(f)(6)(i): a large gift “will be included in full in the denominator of the fraction … but will be includible in the numerator of such fraction only to the extent that such amount does not exceed two percent of the denominator.” The cap “shall not apply to support received from governmental units” or from other publicly supported charities, and related donors are treated as one person.
• The facts-and-circumstances route needs more than 10%. The regulation also asks whether the organization is “so organized and operated as to attract new and additional public or governmental support on a continuous basis,” through “a continuous and bona fide program for solicitation of funds from the general public.”
• The alternative test in IRC 509(a)(2) is for organizations that earn their support: more than one-third from gifts, grants, membership fees and receipts from exempt-function activities, counting receipts from any one person only “to the extent such receipts exceed the greater of $5,000 or 1 percent of the organization’s support,” and “not more than one-third” from gross investment income and unrelated business taxable income after tax.
• Fail both and the organization becomes a private foundation, with the excise taxes, minimum distributions and self-dealing rules that come with it.

What compensation gets disclosed, and what’s the excess benefit exposure?

Part VII lists the “officers, directors, trustees, key employees, and five highest compensated employees,” per the Form 990 instructions, with their pay. It’s public, and it’s where an excess benefit inquiry starts. Under IRC 4958 a disqualified person who receives more than fair value owes “a tax equal to 25 percent of the excess benefit,” rising to “200 percent of the excess benefit” if it isn’t corrected in time, and a manager who knowingly approved it owes 10%, capped at $20,000 per transaction.

• The defense is the rebuttable presumption in Treas. Reg. 53.4958-6. Compensation “is presumed to be reasonable” if it was “approved in advance by an authorized body … composed entirely of individuals who do not have a conflict of interest,” that body “obtained and relied upon appropriate data as to comparability prior to making its determination,” and it “adequately documented the basis for its determination concurrently with making that determination.”
• Meet all three and the IRS can rebut the presumption “only if it develops sufficient contrary evidence.” Miss one and the burden sits with the organization. The executive compensation guide walks through the comparability file.
• The governance questions in Part VI (conflict-of-interest policy, whistleblower policy, how compensation is set) are read alongside Part VII by anyone deciding whether to fund you.

How does public inspection work, and what stays private?

The annual return and the exemption application are open to anyone. IRC 6104(d)(1)(A) requires that a copy of “the annual return filed under section 6033” be “made available by such organization for inspection during regular business hours by any individual at the principal office,” and copies must go out on request. Donor names stay out: for an organization other than a private foundation, 6104(d)(3)(A) does “not require the disclosure of the name or address of any contributor.”

• Written requests have a clock. Under Treas. Reg. 301.6104(d)-1 an organization “receiving a written request for a copy shall mail the copy … within 30 days from the date it receives the request.”
• Posting the return online satisfies the copy requests. 6104(d)(4) lifts the copy duty where “the organization has made the requested documents widely available,” and every 990 ends up on the aggregator sites within months anyway.
• The public version of Schedule B carries amounts without names. Keep the full schedule off your website.
• Unrelated business income has its own return. The Form 990-T instructions require it from any 501(a) organization “if it has gross income of $1,000 or more from a regularly conducted unrelated trade or business,” measured on gross income after cost of goods sold, so an activity that lost money can still trigger the filing. The UBIT guide covers what counts.
• Failing to provide the return on request carries its own penalty under 6652(c)(1)(C), $25 a day up to $13,000 at the 2026 indexed figures.

What should I do next?

Check this year’s gross receipts and year-end assets against the thresholds before choosing the form. Put the fifth-month due date and the Form 8868 date on the calendar. If Schedule A applies, compute the five-year support fraction now, with the 2% cap applied donor by donor. If a year was missed, count how many, because the third one is the one that matters. And if executive pay hasn’t been through the three-step presumption, do that before the next compensation decision rather than after.

• Nonprofit UBIT and Form 990-T, the tax return that rides alongside the information return
• Governance and conflict of interest, the Part VI questions and the policies behind them
• Executive compensation and excess benefit, the Part VII and Schedule J disclosures and the rebuttable presumption
• Starting a 501(c)(3), the application you file to get exemption back after a revocation
• Donor acknowledgment letters, the other document donors will hold you to
• Church bookkeeping and fund accounting, for the organizations that don’t file at all
• Writing a penalty abatement letter, if a late 990 has already drawn a 6652 penalty
• How much does a nonprofit audit cost?, audit vs. review vs. compilation fees and what drives the price

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.