Last updated 2026-07-24
TL;DR
Schedule A is the form 501(c)(3) groups attach to Form 990 or 990-EZ to prove they're a public charity, not a private foundation. Booster clubs and PTOs filing the EZ generally must include it if they're a 501(c)(3). It asks for your public support percentage over five years. Miss it and the IRS can flag your return as incomplete.
What is Schedule A on Form 990-EZ?
Schedule A (Form 990) is the attachment where a 501(c)(3) organization proves it qualifies as a public charity instead of a private foundation. If your booster club or PTO files the 990 tax form in its EZ version, Schedule A rides along with it whenever your group is recognized as tax-exempt under section 501(c)(3). The IRS instructions are direct about who needs it: "Any organization described in section 501(c)(3) or 4947(a)(1) must complete Parts I and II" of Schedule A [1]. That's the core rule. If your group has a determination letter saying you're a 501(c)(3), Schedule A almost always comes with the territory. The form isn't optional paperwork you can skip because your budget is small. It's baked into the form 990 family of returns, and an EZ filing without a required Schedule A is treated as incomplete.
What is Form 990 (and how does the EZ version differ)?
Form 990 is the annual information return the IRS requires from most tax-exempt organizations, reporting revenue, expenses, program activities, and governance. Think of it as the nonprofit world's version of a tax return, except most 501(c)(3) groups owe no tax; the point is transparency and accountability, not a tax bill. There are three main flavors most booster clubs and PTOs will ever touch. The full [990](/articles/treasurer-basics/990) is for larger organizations. Form 990-EZ is the short form, available to organizations with gross receipts under $200,000 and total assets under $500,000 at year end [2]. Below that, tiny organizations with gross receipts normally $50,000 or less can file the electronic 990-N postcard instead [3]. Here's the part that surprises a lot of new treasurers: picking 990-EZ instead of 990-N isn't just about your revenue number. Some groups choose EZ voluntarily even when they'd qualify for the postcard, because a state charity regulator or a school district wants a real financial return, more than a postcard confirmation. Once you're filing the EZ as a 501(c)(3), Schedule A generally comes with it.
What does Schedule A actually ask for?
Schedule A has several parts, but most small booster clubs and PTOs live in Parts I and II. Part I asks you to check a box identifying why you're a public charity, not a private foundation, things like being a school-related organization, a church, a hospital, or (the common one for booster groups) an organization that normally gets a substantial part of its support from the public [1]. Part II is the public support test itself. It's a five-year running calculation showing what share of your total revenue came from broad public sources (memberships, individual donations, government grants) versus a narrow set of large donors. The instructions describe this as measuring whether an organization is "broadly, publicly supported" [1] rather than dependent on one or two big check-writers. There's a numeric bright line worth knowing. Under the section 509(a)(1)/170(b)(1)(A)(vi) test, an organization generally needs to show public support of at least 33 1/3% of total support over the relevant period to pass automatically; fall below that and there's a "facts and circumstances" fallback down to 10% if you can show other factors, per Treasury Regulation 1.170A-9 [4]. Most healthy booster clubs, with dues, concession sales, and community fundraisers spread across many families, clear 33 1/3% without much drama. A club that got 90% of its money from one corporate sponsor last year is the kind of case where this schedule actually matters.
Who has to file Schedule A with the 990-EZ?
If your organization is exempt under 501(c)(3), you almost always attach Schedule A to your 990 or 990-EZ. That includes the typical booster club, PTO, or youth sports association organized as a 501(c)(3) public charity. Organizations under other exemption categories, like some 501(c)(4) social welfare groups or 501(c)(7) social clubs, don't file Schedule A, because that schedule is specifically about proving public charity status under 501(c)(3) or 4947(a)(1) [1]. A quick self-check: pull your IRS determination letter. If it cites section 501(c)(3), Schedule A applies. If your group was never formally recognized as tax-exempt (a lot of informal booster clubs operate this way, which is a separate risk worth fixing), you don't have a determination letter to check, and you should sort out your exemption status before worrying about which schedule goes where. Groups filing 990-N don't file Schedule A at all; the postcard has no schedules. Schedule A only enters the picture once you're required or choose to file the 990 or 990-EZ.
What happens if you skip or mess up Schedule A?
An incomplete return is a real problem, not a paperwork technicality. The IRS can treat a 990-EZ that's missing a required schedule as incomplete, and incomplete or late returns for three consecutive years trigger automatic revocation of tax-exempt status under Internal Revenue Code section 6033(j) [5]. That's the scenario that catches volunteer treasurers off guard most often: a club files fine for two years, has a rough third year where nobody gets around to it, and the exemption is gone. The IRS publishes an Auto-Revocation List, and reinstatement means filing Form 1023 or 1023-EZ again along with reasonable cause statements, sometimes with retroactive relief, sometimes not [6]. Getting Schedule A wrong (miscalculating the public support percentage, checking the wrong public charity box) is less catastrophic than skipping it entirely, but it can still draw a follow-up letter from the IRS asking for correction. If your club's public support percentage is genuinely borderline, that's a good moment to get an accountant's eyes on the numbers rather than guess.
What does a treasurer do (and why does this form land on their desk)?
A treasurer keeps the organization's money straight and keeps the organization square with the IRS and state regulators. Day to day, that means recording deposits and expenses, reconciling the bank account, and reporting to the board. Once a year, it means making sure the right tax return, EZ, full 990, or the N postcard, gets filed on time. So what does a treasurer do in a club specifically? In a booster club or PTO, the treasurer usually handles concession stand cash counts, vendor payments for uniforms or equipment, dues collection, fundraiser reconciliation, and the annual IRS filing. What does a club treasurer do that a corporate accountant doesn't? Mostly, they do it with volunteer hours and often without formal training, which is exactly why Schedule A trips people up: it requires pulling five years of revenue history by source, something a first-year volunteer treasurer may not have organized yet. What does a treasurer of a club do when the books are a mess from a predecessor? They rebuild what they can from bank statements and prior filings, flag any missing years to the board, and get current before trying to get perfect. Schedule A's five-year lookback makes this rebuilding work non-optional if your public support percentage matters to your public charity status.
How do you calculate the public support percentage?
| Membership dues | $40,000 | |
|---|---|---|
| Individual donations (under 2% cap each) | $60,000 | |
| One large corporate sponsor (over 2% cap) | $50,000 | |
| Concession and fundraiser revenue counted as public support | $30,000 | |
| Total support (all sources) | $220,000 | In this simplified example, only the portion of the corporate sponsor's gift up to the 2% threshold counts fully in the numerator; the excess is excluded from the public support numerator (though still counted in total support in the denominator). That's the mechanic that can push a club below the 33 1/3% line even though the total dollars raised look fine. If your club depends heavily on one sponsor or one family foundation, this is worth running by an accountant before filing season, not after. |
The public support percentage is a fraction: qualifying public support divided by total support, calculated cumulatively over the current year plus the four prior years. The numerator generally includes gifts, grants, membership fees, and government support, but contributions from any one donor are capped at 2% of total support for numerator purposes in most cases, which is the mechanism that actually forces broad-based support rather than concentration [4]. The denominator is broader: total support including gross investment income and certain other revenue categories, per the Schedule A instructions [1]. Here's a simplified illustration, not tax advice, just to show the shape of the math: | Support source (5-yr total) | Amount |
What is a 990 tax form used for besides Schedule A?
Beyond proving public charity status, the 990 family exists so the IRS, state charity regulators, and the public can see how a tax-exempt organization spends its money. Form 990 and 990-EZ ask about program service accomplishments, officer compensation, governance policies, and (on the EZ) a summarized balance sheet and income statement. Most state charity registration offices, the ones that require annual charitable solicitation registration, also want a copy of your federal return, sometimes the 990-EZ itself, sometimes a state-specific financial report modeled on it. Confirm with your state charity office (usually housed in the attorney general's office or secretary of state) what's required in your state, since this varies and changes. Donors and grant-making foundations also pull 990s, often through free databases, to check financial health and program spending ratios before writing a check. A clean, complete 990-EZ with an accurate Schedule A is part of your organization's public reputation, whether you think of it that way or not.
How does the public support test differ for schools vs. general nonprofits?
Some booster clubs qualify as public charities automatically because they're closely tied to a school, which can simplify Part I of Schedule A. Organizations described in section 170(b)(1)(A)(ii), schools with a regular faculty, curriculum, and enrolled student body, check a different box than the general public support category and may not need to run the same five-year percentage test [1]. Most independent booster clubs and PTOs, though, aren't the school itself; they're a separate legal entity that supports the school, so they typically fall under the general public support test in section 509(a)(1)/170(b)(1)(A)(vi), the one with the 33 1/3% threshold discussed above [4]. If you're not sure which category your club falls into, check the box selected on your original IRS determination letter or your most recent prior-year Schedule A. Changing categories mid-stream is possible but it's a bigger deal than most volunteer treasurers expect, and it's worth a conversation with an accountant rather than a guess.
What records does a treasurer need to fill out Schedule A accurately?
You need five years of revenue broken down by source: dues, individual gifts, corporate or foundation grants, government grants, and gross receipts from admissions, sales, or services related to your exempt purpose. If your predecessor kept clean books, this is a few hours of pulling numbers. If not, budget real time. A practical list: bank statements for the current and four prior fiscal years, prior 990-EZ or 990-N filings (pull them from the IRS's Tax Exempt Organization Search if you don't have copies), a donor list with amounts by year, and any grant award letters. Cross-check the totals against your bank deposits; discrepancies usually mean something got miscategorized, not that money is missing, but you want to know which before you file. This is exactly the kind of recurring, structured task that benefits from having the right forms and a filing calendar set up once, rather than reinvented every year by whoever happens to be treasurer. That's the gap our $99 one-time State-Personalized Treasurer Kit is built to close: state-specific IRS and raffle-filing checklists so a new volunteer isn't starting from a blank page every fall.
What is a treasurer's role in avoiding IRS auto-revocation?
The treasurer is usually the one person watching the filing deadline, so avoiding auto-revocation comes down to them tracking the due date and confirming the right form gets filed every single year, no exceptions for a busy season. The 990-series return is due by the 15th day of the 5th month after your fiscal year ends; for a calendar-year organization, that's May 15 . Miss three years in a row (not three total, three consecutive) and revocation is automatic under section 6033(j)(1), with no appeal process for the automatic part itself [5]. The fix, Form 1023 or 1023-EZ reapplication plus a reasonable cause statement for streamlined retroactive reinstatement, is available but it's real work and sometimes real fees [6]. The cheapest insurance against this is a simple recurring calendar reminder and a habit of confirming your prior year's return was actually accepted, more than submitted. Check your organization's status anytime on the IRS's Tax Exempt Organization Search tool.
Frequently asked questions
What is Form 990?
Form 990 is the annual information return most tax-exempt organizations file with the IRS, reporting revenue, expenses, and program activities. It comes in a full version, a short EZ version for smaller organizations, and a postcard version (990-N) for the smallest. It's not a tax bill for most 501(c)(3)s; it's a transparency filing.
What is a 990 tax form for a booster club?
For a booster club recognized as a 501(c)(3), the 990 tax form is the annual filing that reports income, spending, and (if filing 990 or 990-EZ) public charity status via Schedule A. Which version applies depends on gross receipts: under roughly $50,000 usually means 990-N; under $200,000 in receipts and $500,000 in assets usually allows 990-EZ [2][3].
What does a treasurer do in a nonprofit club?
A club treasurer tracks all money in and out, reconciles bank accounts, reports finances to the board, safeguards cash from fundraisers, and files the required annual IRS return. In a booster club or PTO, this also usually means handling concession cash, vendor payments, and dues collection.
What is Schedule A on Form 990-EZ?
Schedule A is the attachment 501(c)(3) organizations file with Form 990 or 990-EZ to prove they qualify as a public charity rather than a private foundation. It includes a public support percentage test covering the current year and four prior years, per IRS Schedule A instructions [1].
Do all booster clubs need to file Schedule A?
Only if they're recognized as 501(c)(3) organizations filing Form 990 or 990-EZ. Groups filing the 990-N postcard don't attach any schedules. Groups under other exemption categories, or without formal 501(c)(3) recognition, don't file Schedule A either. Check your IRS determination letter to confirm.
What public support percentage does Schedule A require?
Under the common section 509(a)(1)/170(b)(1)(A)(vi) test, organizations generally need public support of at least 33 1/3% of total support over five years to qualify automatically, with a facts-and-circumstances fallback down to 10% in some cases, per Treasury Regulation 1.170A-9 [4]. Most dues- and community-fundraiser-based booster clubs clear this easily.
What happens if a booster club misses Schedule A?
An EZ return missing a required Schedule A can be treated as incomplete by the IRS. Repeated incomplete or missing filings for three consecutive years trigger automatic revocation of tax-exempt status under Internal Revenue Code section 6033(j) [5]. Reinstatement requires reapplying for exemption.
What is the difference between 990-N and 990-EZ for a PTO?
990-N is a simple electronic postcard for organizations with gross receipts normally $50,000 or less; it asks a handful of yes/no and identification questions and has no schedules [3]. 990-EZ is a fuller short-form return for organizations under $200,000 in gross receipts and $500,000 in total assets, and it requires Schedule A for 501(c)(3) filers [2].
What does a treasurer of a club do when taking over mid-year?
They request all bank statements, prior tax filings, and the IRS determination letter from the outgoing treasurer or board, reconcile the current bank balance against the books, and confirm the organization's IRS exempt status hasn't lapsed. Rebuilding five years of Schedule A history is part of this if the club files 990-EZ.
How many years of data does Schedule A's public support test cover?
It's a cumulative five-year calculation: the current tax year plus the four immediately preceding years, per the Schedule A instructions [1]. This is why keeping consistent, well-labeled financial records year over year matters more than any single year's numbers.
Can a small booster club file 990-EZ voluntarily instead of 990-N?
Yes. An organization under the 990-N threshold can generally choose to file the full 990-EZ instead if a school district, state regulator, or grantor wants a real financial return rather than a postcard confirmation, though this means Schedule A comes along with it for 501(c)(3) filers.
Where can a treasurer check if the IRS auto-revoked their organization?
Use the IRS's Tax Exempt Organization Search tool at irs.gov/charities-non-profits, which lists organizations on the Auto-Revocation List along with their exemption and filing history. It's free and doesn't require an account.
Sources
- IRS, Instructions for Schedule A (Form 990): Who must complete Schedule A, what Parts I and II require, and the public support test description
- IRS, Form 990-EZ and its instructions: Gross receipts under $200,000 and total assets under $500,000 threshold for 990-EZ eligibility
- IRS, Annual Electronic Filing Requirement for Small Exempt Organizations (990-N): Gross receipts normally $50,000 or less threshold for filing 990-N
- Cornell Legal Information Institute, 26 CFR 1.170A-9: 33 1/3% public support threshold and 10% facts-and-circumstances fallback, and the 2% per-donor cap concept
- IRS, Automatic Revocation of Exemption: Three consecutive years of failing to file triggers automatic revocation under IRC 6033(j)
- IRS, Form 990 Series filing due dates: 990-series returns due the 15th day of the 5th month after fiscal year end