Sooner or later a customer emails your support inbox with a version of this question: “I rounded up 40 cents for charity at checkout. Is that tax-deductible? And do you get the write-off instead of me?”
It is a fair question, and the internet is full of confidently wrong answers to it. So are a lot of merchant help pages. Getting checkout donations and tax deductions right matters more in 2026 than it did in any prior year, because a rule change just made small donations deductible for a group of people who previously got nothing for giving.
The Rule Everyone Gets Backwards
There is a persistent belief that retailers collect checkout donations so they can claim a big charitable write-off at the end of the year. It shows up in viral posts every holiday season. It is not how US tax law works.
When a shopper rounds up at checkout, the money never becomes the merchant’s income. It passes through the business to the nonprofit. Accountants treat it the way they treat sales tax: a liability on the balance sheet, not revenue on the income statement. You cannot deduct money that was never yours in the first place. Claiming a customer’s gift as your own contribution would be double-counting the same dollar, and it is not permitted.
The flip side is the part worth telling your customers: the deduction belongs to them. Their receipt showing the donation amount and the recipient charity is what supports it.
Customer-Funded vs Merchant-Funded
This is the distinction that resolves almost every checkout donation tax question, and it is the one most articles skip.
| Model | Who pays | Who can deduct | How it books |
|---|---|---|---|
| Round-up at checkout | Customer | Customer | Pass-through liability, not revenue |
| Customer adds a fixed donation | Customer | Customer | Pass-through liability, not revenue |
| % of sales to charity | Merchant | Merchant (subject to limits) | Merchant expense or contribution |
| Donation matching | Both | Each side deducts its own part | Split: liability + merchant cost |
| Tree planted per order | Merchant | Not a charitable deduction | Business or marketing expense |
Notice the last row. It surprises people, so it is worth being blunt about it.
Tree Planting Is Not a Donation, and You Should Not Call It One
GoodAPI plants trees at $0.43/tree through Veritree, a verified reforestation organization whose projects are GPS-tracked and monitored through the trees’ critical early years. That is a service the merchant buys. It is not a gift to a 501(c)(3), and it does not produce a charitable contribution deduction for either the merchant or the shopper.
Merchants generally treat that cost the way they treat any other cost of doing business, often as a marketing expense, since it is attached to the order and used in customer-facing messaging. Your accountant will have a view on the exact classification.
Why does this matter beyond bookkeeping? Because if your storefront tells customers “your purchase includes a tax-deductible donation” when what actually happened is that you bought reforestation services, you have made a claim you cannot support. That is the kind of sloppy language that regulators and consumers are increasingly unforgiving about, and it is entirely avoidable. Say what is true: the store funds verified tree planting on every order. That is a stronger claim anyway, because you can prove it with planting records.
What Changed for Donors in 2026
Here is the genuinely new part, and it is the reason to revisit your checkout donation copy this year.
For decades, the practical answer to “is my checkout donation deductible?” was “technically yes, realistically no,” because more than nine out of ten taxpayers take the standard deduction and never itemize. A 40-cent round-up was deductible on paper and worthless in practice.
That changed with the tax law that took effect for the 2026 tax year. Filers who take the standard deduction can now claim an above-the-line deduction for cash gifts to qualified 501(c)(3) charities, capped at $1,000 for single filers and $2,000 for joint filers. Above-the-line means it reduces adjusted gross income before the standard deduction is even applied. Gifts to donor-advised funds are excluded, and the caps are not indexed to inflation.
The practical consequence for merchants: the customer asking “is this deductible?” now has a real reason to care, and a real reason to keep the receipt. A checkout donation program that produces a clean, itemizable record is worth more to your shopper in 2026 than it was in 2025.
This is general information, not tax advice. Point customers to their own tax professional for their situation, and do the same for your business.
What a Usable Donation Record Actually Contains
If the customer is the one claiming the deduction, the record you hand them is the whole game. A donation line that says “Charity: $0.40” and nothing else is technically substantiation for a small gift, but it is a weak artifact. It does not tell the customer or their accountant which organization received the money, or whether that organization was actually a qualified charity on the day of the gift.
A record worth keeping shows:
- The amount and the date
- The legal name of the receiving nonprofit, not a campaign nickname
- The organization’s EIN, so it can be looked up
- Confirmation the nonprofit was an active 501(c)(3) at the time of the donation
That fourth item is the one most checkout donation setups quietly skip. Charities lapse. Names get reused. A receipt that points at a nonprofit whose status was revoked two years ago is not a record, it is a liability.
How GoodAPI Handles the Record
GoodAPI routes checkout donations through a network of 1.3M verified 501(c)(3) nonprofits, with EIN-level verification and active-status checks on the receiving organization. The point of that verification is not a marketing bullet. It is what makes the customer’s record mean something, and what keeps you from routing a shopper’s money to an organization that cannot legally receive it.
The same infrastructure handles the merchant-side legal question. Commercial Co-Venture rules govern how a business can advertise that a purchase benefits a charity, and they vary by state. GoodAPI handles CCV compliance across all US states, which is the part merchants most often discover too late. We wrote about that separately in our guide to CCV compliance for Shopify donations, and about picking the right cause in how to choose a charity for your Shopify checkout.
What to Tell Customers, in Plain Language
You do not need a legal page for this. You need three honest sentences in your FAQ:
- On round-ups: “Your round-up goes directly to [nonprofit name, EIN]. We pass it through in full and take no fee on it. The donation is yours, and your order confirmation shows the amount for your records.”
- On store-funded impact: “We fund tree planting and donations ourselves on every order, at no cost to you. That is our contribution, not a charge to you, and it is not a deduction you can claim.”
- On tax questions generally: “We can tell you what happened to the money. We cannot tell you how it affects your return. Ask your tax professional.”
That third sentence protects you and respects the customer. It is also, in our experience, the one merchants are most reluctant to write, because it feels like admitting a limit. It is not. It is the only credible thing to say.
Merchants who want their checkout donation copy to survive a customer asking a hard question about it
The Trust Argument
Checkout charity has an image problem, and the tax myth is a big part of why. Every time a customer believes the store is pocketing a write-off on their 40 cents, the entire category gets a little less trusted, including the merchants doing it properly.
The fix is not more marketing. It is a verifiable record and copy that says exactly what happened. Tell the customer the money is theirs, show them where it went, name the organization, and let the receipt do the rest. Merchants who do this consistently find that the donation stops being a checkout gimmick and starts being a reason people come back.
GoodAPI runs donations and verified reforestation through one Shopify app, with donations routed to EIN-verified 501(c)(3) nonprofits, CCV compliance handled across US states, and every tree GPS-tracked through Veritree. You can see how donations work or install the GoodAPI app and have a compliant, verifiable giving program live at checkout the same day.
This article is general information for merchants and is not tax or legal advice. Tax treatment depends on your specific circumstances. Consult a qualified tax professional.