Donor-covered fees can send 100% of a gift to your cause. See the mechanics, opt-in vs default, what share of donors cover, and the ethics.
How donor-covered fees actually work
When a supporter gives $100, your nonprofit does not keep $100. Card networks, your processor, and your fundraising platform each take a cut before the money lands. Donor-covered fees flip that math: a small checkbox at the point of giving lets the supporter add the fee amount on top, so the full $100 reaches your programs. The donor pays $105, you receive $100, and the gift you steward matches the gift they intended.
The mechanic lives inside the giving form, which is why the design of your smart checkout matters so much. A well-built form calculates the fee in real time, shows the donor exactly what covering it means, and keeps the experience to one tap. With Whitelabel the all-in cost is 3.5% platform plus 1.5% processing, and donors cover it by default, so 100% of a gift can reach the cause. If you want the full breakdown of where the money goes, our guide to nonprofit payment processing fees walks through every line.
Opt-in, default-on, and what the data shows
There are two ways to present the choice. Opt-in means the box starts unchecked and the donor decides to add the fee. Default-on (sometimes called opt-out) pre-checks the box and lets the donor uncheck it. The difference is not cosmetic: behavioral studies on default settings consistently show that pre-selected options see far higher uptake, because most people accept the path of least resistance. The same psychology that powers organ-donor registration and retirement enrollment applies to fee coverage.
Industry reporting from fundraising platforms suggests that when fee coverage is presented as the default, a large majority of donors leave it on, often well above half and frequently much higher, though you should verify against your own donor data. The lift is real money: on a $10,000 month of gifts, covered fees can mean hundreds of extra dollars reaching programs rather than processing. The trick is to let your donation flows test both presentations and report the actual cover rate, not a vendor's marketing claim.
The ethics: transparency beats dark patterns
Default-on fee coverage is only ethical when it is honest. A pre-checked box is fine; a hidden, hard-to-find, or deceptively worded one is a dark pattern that erodes trust the moment a donor notices it on their statement. The standard is simple: the donor should always see the exact amount they are adding, understand it is optional in plain language, and be able to uncheck it in one obvious action. Transparency is not a compliance checkbox, it is donor retention insurance.
There is also a values question worth naming. Some organizations prefer to absorb fees themselves rather than ask donors to pay more, treating it as a cost of doing business. Others feel that letting committed supporters cover a few dollars so their full gift reaches the mission is the more transparent choice. Both are defensible. What is not defensible is pretending fees do not exist. For more on stacking this with other strategies, see our guide to matching gifts left unclaimed and pair it with clear receipting.
Stacking fee coverage with other 100% strategies
Fee coverage is one lever, not the whole machine. The same gift that reaches you in full can also be doubled if the donor's employer offers a match, yet industry estimates suggest several billion dollars in matching gifts go unclaimed every year because supporters never get prompted. Connecting matching gifts detection to your giving form, powered by our partner Double the Donation, surfaces an employer match in the same moment a donor is covering fees, compounding both effects on a single transaction.
Layering matters because Whitelabel sits on top of your existing stack rather than replacing it, with two-way CRM sync to Salesforce, HubSpot, and Klaviyo so covered-fee and matched-gift data flow straight into donor records. There is no monthly fee and no contract, a free Pro plan, and PCI DSS Level 1, SOC 2, and HIPAA compliance through a Vanta-powered trust center. The result is more dollars per gift without replatforming, a predictable rate you can model before any campaign launches.
Frequently asked questions
What percentage of donors actually cover the processing fee?
It depends heavily on how you present the option. When fee coverage is the default (pre-checked but clearly optional), industry reporting suggests a large majority of donors leave it on, often well above half. When it is opt-in and starts unchecked, uptake is meaningfully lower. The only reliable number is the cover rate from your own donors, so test both and watch the data.
Is it legal and ethical to pre-check the fee-coverage box?
Yes, default-on fee coverage is legal and widely used, provided it is transparent. The donor must clearly see the exact added amount, understand it is optional in plain language, and be able to uncheck it in one obvious action. The line you must not cross is hiding the charge or making it hard to decline, which damages trust and can trigger chargebacks.
Does covering fees really mean 100% of my gift reaches the cause?
Yes. When the donor adds the platform and processing fees on top of their gift, the nonprofit receives the full intended amount and the fees are paid separately by the donor. With Whitelabel the all-in cost is 3.5% platform plus 1.5% processing, covered by donors by default, so 100% of a gift can reach your programs.