A nonprofit that takes in more money than it spends has not done anything wrong. Federal law lets 501(c)(3) organizations run a surplus, and the question of what happens when a nonprofit makes too much money has less to do with the size of the bank balance than with where the money ends up. Trouble starts when surplus funds flow to insiders, when unrelated commercial activity begins to crowd out the mission, when money goes to political campaigns, or when the funding mix shifts far enough that the IRS reclassifies the organization. Each of those scenarios has its own rules, and the penalties range from a routine tax bill to the loss of tax-exempt status altogether.
A Surplus Is Not the Problem
The word “nonprofit” misleads people. It does not mean the books have to balance to zero every December. It means no owner or shareholder can pocket what’s left over. A for-profit company distributes earnings. A nonprofit reinvests them. That is the whole distinction.
Running a consistent surplus is what responsible management looks like. An organization that spends every dollar the year it arrives is one bad quarter from closing. A cushion lets a nonprofit absorb a drop in donations, bridge a gap between grant cycles, or save for a project that will take years to pay off. The constraint is simple: every dollar must eventually serve the exempt purpose the organization described in its founding documents and in its application for tax-exempt status.1Internal Revenue Service. Inurement/Private Benefit – Charitable Organizations
Where the Extra Money Is Allowed to Go
Surplus funds have to trace back to the mission, but that leaves a wide range of legitimate uses.
The most straightforward is doing more of what the organization already does. A food bank hires another driver. A tutoring program opens a second site. An animal shelter extends clinic hours. This is exactly the kind of reinvestment the tax code anticipates.
A second common use is an operating reserve, a dedicated cushion that covers expenses during lean periods. A widely used benchmark is three to six months of operating expenses, calibrated to the organization’s revenue patterns and cash-flow risks. At a minimum, a reserve should cover one full payroll cycle. Reserves that climb past roughly two years of budget start to raise questions about whether the organization is still actively pursuing its mission or just stockpiling cash.
Larger organizations also save for capital projects: a new facility, a renovation, specialized equipment. A community clinic setting aside funds for imaging equipment is a classic example. Some go further and build endowments, investing a pool of money so the returns fund operations indefinitely.
When Side Revenue Gets Taxed
Not every dollar a nonprofit earns is tax-free. When an organization regularly runs a business that has nothing to do with its exempt purpose, the IRS taxes the profit from that activity under the unrelated business income tax, or UBIT. Three conditions have to be met: the revenue comes from a trade or business, the business is regularly carried on rather than a one-off fundraiser, and the activity is not substantially related to the organization’s mission.2Internal Revenue Service. Unrelated Business Income Tax Needing the money does not make the activity related.
A university that runs a commercial parking garage for the general public is the standard illustration. Education is the mission; running a parking business for commuters is not. The net income is taxable. Organizations with $1,000 or more in gross unrelated business income file Form 990-T and pay tax at the 21% corporate rate.3Internal Revenue Service. Instructions for Form 990-T (2025) A $1,000 specific deduction applies, so organizations only slightly over the line often owe little or nothing.4Office of the Law Revision Counsel. 26 U.S. Code 512 – Unrelated Business Taxable Income
When Commercial Activity Threatens the Exemption
Paying UBIT on a side business is routine and does not, by itself, endanger a nonprofit’s status. The risk arises when commercial activity starts to dominate. Under IRS regulations, a 501(c)(3) only qualifies as operating exclusively for exempt purposes if it engages primarily in activities that accomplish those purposes. If more than an insubstantial part of its activities serves a nonexempt purpose, the exemption can be revoked.5Internal Revenue Service. When Are Commercial Type Activities a Substantial Nonexempt Purpose for an IRC 501(c)(3) Organization
There is no bright-line percentage. The IRS looks at the whole picture: whether the organization competes directly with for-profit businesses, how it prices its services, whether it advertises commercially, and what share of its funding comes from donations versus commercial sales.6Internal Revenue Service. How to Lose Your 501(c)(3) Tax-Exempt Status (Without Really Trying) A growing nonprofit can earn UBIT without worry so long as the exempt mission remains the primary activity.
When Insiders Benefit, the Penalties Hit Hard
The fastest way for a nonprofit to end up in serious trouble is routing money to insiders. Federal law flatly prohibits any portion of a 501(c)(3) organization’s net earnings from benefiting any private shareholder or individual with a personal interest in the organization.1Internal Revenue Service. Inurement/Private Benefit – Charitable Organizations Board members, officers, key employees, and their families cannot receive compensation or other benefits beyond what is reasonable for the services they actually provide.
The definition of “insider” reaches further than most boards expect. The regulations treat as disqualified persons the spouse, siblings, children, grandchildren, great-grandchildren, ancestors, and the spouses of those relatives of anyone with substantial influence over the organization.7eCFR. 26 CFR 53.4958-3 – Definition of Disqualified Person A board member’s brother-in-law getting an above-market renovation contract triggers the same rules as the board member taking the money directly.
The Safe Harbor for Executive Pay
Organizations that pay executives well can protect themselves through a three-step process that creates a legal presumption the compensation is reasonable. An independent committee with no conflicts of interest must approve the pay package in advance; the committee must gather and rely on comparable salary data from similar organizations before deciding; and it must document the basis for its decision at the time it is made.8eCFR. 26 CFR 53.4958-6 – Rebuttable Presumption That a Transaction Is Not an Excess Benefit Transaction If the IRS later challenges the salary, the burden shifts to the government to prove it was excessive. Skip any one of the steps and the presumption disappears. Approving a raise without comparability data, or writing up the reasoning months later, leaves the organization exposed.
Intermediate Sanctions and Correction
When an insider receives more than fair value, the IRS does not always revoke the exemption. It often imposes intermediate sanctions aimed at the individuals rather than the organization. The disqualified person owes a tax of 25% of the amount by which the benefit exceeded fair value. An organization manager who knowingly approved the deal owes 10%, capped at $20,000 per transaction.9Office of the Law Revision Counsel. 26 USC 4958 – Taxes on Excess Benefit Transactions
The stakes escalate if the problem is not fixed within the taxable period: an additional tax of 200% of the excess benefit applies. To avoid that second tax, the disqualified person must repay the organization in cash or cash equivalents. A promissory note does not count. The repayment covers the excess benefit plus interest at no less than the applicable federal rate, compounded annually, from the date of the transaction.10eCFR. 26 CFR 53.4958-7 – Correction Returning property instead of cash is possible with the organization’s agreement, but the property is valued at the lower of its current fair market value or its value on the date of the original transaction, and any shortfall must be paid in cash.
When Saving Too Much Changes What Kind of Charity You Are
Most 501(c)(3) organizations are classified as public charities, which carries more favorable tax treatment and fewer restrictions than the alternative: private foundation. The classification depends on where the money comes from. An organization qualifies as publicly supported if it normally receives a substantial part of its funding from government sources or public contributions, or if it draws more than one-third of its support from gifts, grants, and program-related revenue while receiving no more than one-third from investment income. The IRS measures the ratio over a rolling five-year period.11Internal Revenue Service. EO Operational Requirements – Requirements for Publicly Supported Charities
A nonprofit that accumulates a large investment portfolio can inadvertently tip this balance. If investment income grows large relative to public support, the organization risks reclassification as a private foundation. That shift brings real consequences: a 1.39% excise tax on net investment income, restrictions on dealings between the foundation and its major contributors, mandatory annual distributions for charitable purposes, and limits on holdings in private businesses.12Internal Revenue Service. Tax on Net Investment Income13Internal Revenue Service. Private Foundations
What a Nonprofit Cannot Spend Money On
A nonprofit with surplus revenue might consider spending some of it on political influence. The rules here are strict, and for campaigns they are absolute.
A 501(c)(3) organization is completely prohibited from participating in any political campaign for or against a candidate for public office. The ban covers financial contributions, endorsements, and public statements of support or opposition made on the organization’s behalf. A violation can trigger revocation of tax-exempt status and excise taxes.14Internal Revenue Service. Restriction of Political Campaign Intervention by Section 501(c)(3) Tax-Exempt Organizations
Lobbying has more room. Nonprofits other than churches and private foundations can elect the expenditure test under Section 501(h), which sets concrete dollar limits on lobbying based on total exempt-purpose spending. An organization spending $500,000 or less on exempt activities can devote up to 20% of that amount to lobbying. The allowable percentage steps down as spending rises, and the total lobbying cap tops out at $1,000,000 regardless of the organization’s size.15Internal Revenue Service. Measuring Lobbying Activity – Expenditure Test Without the election, the standard is vaguer: lobbying cannot be more than an “insubstantial part” of overall activities, which leaves the IRS broad discretion to second-guess the spending.
Reporting Grows With Revenue
As a nonprofit’s revenue climbs, so do its reporting duties. The required form depends on gross receipts and total assets. Organizations with gross receipts normally at or below $50,000 file the short Form 990-N e-Postcard. Organizations with gross receipts under $200,000 and total assets under $500,000 file Form 990-EZ. Organizations with gross receipts of $200,000 or more, or total assets of $500,000 or more, file the full Form 990.16Internal Revenue Service. Form 990 Series – Which Forms Do Exempt Organizations File The full 990 is a detailed public document covering executive compensation, program expenses, governance practices, and more. Any donor, journalist, or regulator can read it. Growing nonprofits often underestimate how much scrutiny arrives with crossing these thresholds.
Failing to file is not a minor oversight. An organization that misses its Form 990 series return for three consecutive years automatically loses tax-exempt status. Reinstatement requires a new application, with no grace period.17Internal Revenue Service. Automatic Revocation – How to Have Your Tax-Exempt Status Reinstated Many states layer their own audit and reporting requirements on top of federal filings once revenue crosses state-specific thresholds.
What Revocation Actually Means
The most severe outcome is losing 501(c)(3) status. Revocation can follow from private inurement, excessive unrelated business activity, political campaign involvement, or repeated filing failures. Once the exemption is gone, the organization owes federal income tax on its earnings like any other entity, and donations are no longer deductible for contributors. For most nonprofits that combination is fatal: donors stop giving, grants dry up, and the organization cannot sustain itself.
The IRS treats revocation as a last resort for inurement and excess benefit cases, preferring intermediate sanctions when the problem is a specific transaction rather than a pattern. For political campaign activity, a single violation can be enough. For filing failures, revocation is automatic after three years with no discretion involved. The through-line is that as revenue grows, governance, documentation, and compliance matter more. More money is more capacity to do the work; it is also more ways to stumble into a violation that puts the whole organization at risk.