Federal tax-exempt status doesn’t answer the question of whether nonprofits have to pay sales tax. That’s a state-level question, and in most states a 501(c)(3) still pays sales tax on its purchases unless it applies separately to the state revenue department for an exemption, and still has to collect sales tax on the goods it sells to the public. Five states have no statewide sales tax at all. Everywhere else, your IRS determination letter is the starting point, not the finish line.
When a Nonprofit Can Buy Things Tax-Free
Most states let qualifying nonprofits purchase goods and services without paying sales tax, but eligibility turns on two things: what kind of nonprofit you are, and what the purchase is for. Organizations recognized under Section 501(c)(3) of the Internal Revenue Code, covering charitable, religious, educational, and scientific groups, are the most commonly eligible.1Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc. Other federally exempt categories, like 501(c)(4) civic leagues or 501(c)(6) trade associations, are shut out of the sales tax exemption in many states.
Even if your organization qualifies, the exemption usually covers only items bought directly for the exempt purpose. A literacy charity can buy books for its reading program tax-free, but decorations for a staff party generally can’t. The purchase also has to be made with the organization’s own funds. If an employee pays out of pocket and gets reimbursed, most states won’t honor the exemption on that transaction.
Alaska, Delaware, Montana, New Hampshire, and Oregon impose no statewide sales tax, so nonprofits operating entirely within them don’t face this issue on the buying side.2Tax Foundation. State and Local Sales Tax Rates, 2026 Every other state sets its own rules, and the differences are large enough that assumptions travel poorly across state lines.
Getting the Exemption From Your State
The sales tax exemption is a separate application from your IRS determination, and one doesn’t produce the other. You apply to the state’s department of revenue or equivalent tax authority. Most states charge no application fee.
You’ll typically need to submit:
- Your IRS determination letter confirming federal tax-exempt status. If the original is lost, the IRS can issue an affirmation letter that works in its place.3Internal Revenue Service. EO Operational Requirements – Obtaining Copies of Exemption Determination Letter From IRS
- Your Employer Identification Number.
- Governing documents such as articles of incorporation or bylaws. Many states require language confirming that no part of the organization’s earnings benefits any private individual.
- A current financial statement, or for a new organization, a proposed budget.
Once approved, the state issues a certificate or exemption number. Renewal rules vary. Around a dozen states require periodic renewal, most commonly every five years. Alabama and a few others require annual renewal. Many states issue certificates with no expiration. Processing runs from a few weeks to a couple of months.
Using the Certificate and Keeping the Records
The certificate only helps if the vendor sees it before ringing you up. Vendors aren’t required to guess your status, and most will charge full sales tax without documentation in hand. Keep copies at every location where staff make purchases, and send certificates to recurring vendors so the exemption sits on file before invoices go out.
When you do get charged tax you shouldn’t have paid, recovering it means filing a refund claim with the state, which tends to be slow. Prevention is cheaper than reimbursement.
On record retention, most states require you to keep exemption certificates and related transaction records for three to four years. Some require six or seven. If you operate across state lines, seven years is the safer floor. And if a required sales tax return was never filed, the statute of limitations may never run in some states, which makes indefinite retention the only safe rule for those records.
Use Tax on Out-of-State and Online Purchases
Use tax is the mirror of sales tax. It kicks in when you buy a taxable item and the seller doesn’t collect sales tax, which is common with out-of-state and online purchases. Some states extend the sales tax exemption to cover use tax as well; others treat them separately, meaning your nonprofit can owe use tax on an item it could have bought locally tax-free.
Construction and renovation projects are a frequent trap. In many states, contractors and subcontractors working on a nonprofit’s building are treated as the end consumers of the materials they install. The nonprofit’s exemption doesn’t reach the contractor, who owes use tax on those materials and passes the cost through in the bill. Ask how your state handles contractor use tax before you sign a construction contract.
Sales Tax on What Your Nonprofit Sells
Being exempt from paying sales tax on your own purchases does not exempt you from collecting sales tax when you sell. Selling tangible goods puts a nonprofit in the position of a retailer, subject to the same collection rules as any for-profit business.
Before making retail sales, register with the state tax authority and obtain a seller’s permit or certificate of registration. Then collect the applicable rate on every taxable sale and remit on the required schedule, typically monthly or quarterly depending on volume. This covers gift shops, bookstores, thrift stores, and any other regular, ongoing sales operation open to the public. Tax applies to the full selling price, not the profit margin above cost.
Fundraisers, Galas, Auctions, and Raffles
Many states carve out narrow exceptions for occasional fundraising sales, but the rules vary sharply. Some states allow a small number of tax-free fundraising events each year, often one to five days of sales activity. Others provide no fundraising exception at all.
Where an exception exists, it typically requires that all proceeds benefit the mission, that the sales not recur regularly, and that the event be genuinely temporary. A weekend bake sale or an annual holiday bazaar may qualify. A monthly pop-up shop selling branded merchandise generally will not. State auditors draw the line between occasional fundraiser and regular retail more tightly than most nonprofits expect.
Fundraising dinners and galas add a wrinkle. If a ticket includes a meal, the portion representing the fair market value of the food and drink is often subject to sales tax, even if the rest of the ticket is treated as a charitable contribution. Some states exempt admission charges entirely when all proceeds go to the organization, but that’s not universal.
Charity auctions follow the retail rule. The sale of an item at auction is generally taxable, and the nonprofit collects sales tax from the winning bidder based on the hammer price, even when the item was donated. Raffles are usually treated differently, because participants are buying a chance rather than a product, and most states don’t treat raffle proceeds as taxable sales. Separate state gambling and lottery laws can still apply.
Online Sales Across State Lines
Nonprofits that sell merchandise, tickets, or other goods through a website carry the same interstate obligations as any online retailer. The 2018 Supreme Court decision in South Dakota v. Wayfair ended the rule that a seller needed a physical presence in a state before that state could require sales tax collection.4Supreme Court of the United States. South Dakota v. Wayfair, Inc. (06/21/2018) States can now require collection from any seller that crosses an economic nexus threshold, wherever the seller sits.
The most common threshold is $100,000 in annual sales into a state or 200 separate transactions, though many states have dropped the transaction-count test and rely on the dollar figure alone.5Congressional Research Service. State Sales and Use Tax Nexus After South Dakota v. Wayfair A few states set higher thresholds. Nonprofit status brings no special break here. Cross the threshold in a state, and you register, collect, and file there like anyone else.
For tangible products shipped to buyers, the taxing state is the delivery state, not your home state. Organizations that ship nationwide can build nexus in several states without noticing. Track revenue by destination state throughout the year rather than reconstructing it at year-end.
What Happens if You Get It Wrong
The consequences fall into two categories: money and status. Financially, a nonprofit that fails to collect or remit sales tax faces the same treatment as any business. States impose late-filing penalties as a percentage of the unpaid tax plus interest from the original due date. An audit can reach back across the entire period of non-compliance, which can be years depending on the state’s statute of limitations.
The status risk is quieter and often larger. State-level tax-exempt status typically depends on federal recognition. If the IRS revokes federal tax-exempt status, the state sales tax exemption usually falls with it.6National Council of Nonprofits. What to Do if Your Nonprofit’s Tax Exemption Status Is Revoked The traffic runs both ways: state agencies share information with the IRS, so unfiled state returns or payroll problems can bring federal attention.
An audit itself is disruptive for a small organization even before the assessment lands. Staff time shifts from mission work to document production, and legal and accounting fees strain the budget. Nonprofits that register, collect, and file from the start avoid the problem. The ones that assume tax-exempt status covers everything are the ones who find out otherwise.