Asking Donors to Cover Processing Fees: Does It Work, and Is It Legal?

On this page 7 sections

1. Letting a Donor Cover Processing Fees vs. Charging a Surcharge
2. Card Network and State Rules That Apply to Donation Forms
3. Should the Donation Processing Fee Checkbox Be Pre-Checked?
4. Gross-Up Math: Calculating a Cover-the-Fee Amount That Nets the Full Gift
5. Is the Covered Fee Tax-Deductible? Receipting the Right Amount
6. Applying Fee Coverage to Monthly Recurring Gifts
7. Next Steps: Getting Your Fee-Coverage Setup Right

Key takeaways

• A voluntary cover-the-fee option is generally different from a card surcharge. Keep it optional, method-neutral and clearly worded so it stays that way.
• An unchecked box is the conservative default. Test any change against your own form data, not someone else's opt-in rate.
• Use a true gross-up formula, (gift + fixed fee) ÷ (1 − percentage rate), so the covered amount actually nets you the full gift.
• Receipt the total the donor paid, and carry their fee choice forward on recurring gifts. Confirm tax treatment with a qualified professional.

Every online gift arrives a little smaller than the donor intended, because card processing fees come out first. That's why many nonprofits add an option that lets a donor cover processing fees so the full gift reaches the mission. This guide explains whether that option counts as a surcharge, how to set the checkbox default, how to calculate the right amount and what goes on the tax receipt. It covers both one-time and recurring giving.

A typical version reads: "Add a little extra to cover processing fees so 100% of my gift goes to the mission." Donors often respond well to that ask. If you're wondering whether donors should pay credit card fees, the safer framing is that they can choose to, never that they must. The sections below explain why that distinction matters.

This article is general information, not legal, tax or accounting advice. Confirm your setup with your attorney, CPA and processor.

Letting a Donor Cover Processing Fees vs. Charging a Surcharge

The two can look similar on a form, but they are structurally different.

A surcharge is a fee you require a customer to pay for using a credit card. Card networks require specific disclosures and registration, cap the amount and restrict it in other ways. Some states limit or prohibit it. Our page on compliant credit card surcharging programs explains how merchants run surcharging where it's permitted.

A true cover-the-fee donation works differently. The donor can skip the option and still give. In substance, the donor is choosing to give a bit more.

The distinction blurs if your form does any of the following:

• Requires the fee to complete the gift
• Shows the option only when the donor picks a credit card
• Labels it a "credit card fee," "convenience fee" or "surcharge"
• Adds it automatically, with no clear way to remove it

If your setup looks like a mandatory card fee, treat it as one and get compliance advice. If your organization also sells things, such as thrift store items, gala tickets, merchandise or class registrations, those are sales transactions. Any fee you add to them falls under the normal surcharge rules. For raffles specifically, see our guide on whether nonprofits can accept credit cards for raffle tickets.

Card Network and State Rules That Apply to Donation Forms

There's no single "donation surcharge rule" to look up. Several sets of rules overlap:

• Card network rules. Visa, Mastercard and other networks publish rules on surcharges, convenience fees and disclosures. A voluntary donor contribution generally sits outside surcharge rules, but only if it is truly voluntary and method-neutral.
• Your processor and gateway agreement. Some processors have their own terms for fee-recovery features. Ask before you launch.
• State surcharge and consumer-protection laws. These vary by state and change over time. Several states and federal regulators have scrutinized pre-selected add-ons and "drip pricing," where a fee appears late in checkout.
• Charitable solicitation rules. States regulate how charities describe where donations go. If your form promises that "100% of your gift funds programs," make sure that's accurate once fee coverage is applied.

Before launching or changing a fee-coverage option, send your processor a screenshot of the form and ask: "Do you treat this as a voluntary contribution or a surcharge?" Get the answer in writing.

Should the Donation Processing Fee Checkbox Be Pre-Checked?

This is the most debated setting. Pre-checking the box will likely raise the share of donors who cover fees, because some donors won't notice it. That is exactly the problem with pre-checking.

Reasons to Leave It Unchecked

• It's the clearest form of donor consent and the hardest to call a hidden fee.
• It avoids "I didn't agree to that" emails and refund requests after year-end campaigns.
• It lines up with growing regulatory skepticism of pre-selected add-ons.
• Donors who notice a pre-checked add-on may trust you less on their next gift.

Reasons Some Organizations Pre-Check

• It recovers more fees on high-volume campaigns.
• Some donor bases tolerate it well, especially loyal, repeat givers.

If you consider pre-checking, get legal sign-off first. Then make the amount impossible to miss: show the dollar figure next to the box, keep the opt-out visible and include the fee line in the confirmation email.

Track Your Own Fee Coverage Opt-In Rate

Fee coverage rates vary widely by audience, wording, gift size and form design. The only opt-in rate worth budgeting on is your own. Run a split test and track:

1. Coverage rate: the share of completed gifts that include the fee
2. Average gift before fees: to confirm the ask isn't shrinking base gifts
3. Form completion rate: to confirm the extra line isn't causing donors to abandon the form
4. Recurring conversion rate: the share of donors choosing monthly
5. Refunds, complaints and donor service contacts tied to the fee line

Wording and Placement

Wording and placement matter as much as the default:

• Show the exact dollar amount ("Add $3.30 to cover fees") rather than only a percentage.
• Place the option after the donor selects an amount and before payment details.
• Explain the purpose in one sentence.

Don't confuse fee coverage with platform tips. Some free donation platforms ask donors to tip the platform. That money doesn't go to your organization, and donors often mix up the two. If your platform does both, make sure donors can tell which is which.

Gross-Up Math: Calculating a Cover-the-Fee Amount That Nets the Full Gift

The common mistake is adding your rate to the gift amount. Processing fees are charged on the total transaction, including the extra you added, so a simple add-on leaves you slightly short.

To net the full gift, use a gross-up formula:

Total to charge = (Gift + fixed per-transaction fee) ÷ (1 − percentage rate)

Round up to the next cent. The table below uses an illustrative rate of 2.9% + $0.30 per transaction. It is not a quote, and your rate will differ.

Illustrative figures only.

The gap on any one gift is small. Across a large year-end campaign, it adds up to a line item your finance team will ask about.

Use Your Real Blended Cost

Your actual cost per gift varies. Rewards cards, corporate cards and some card brands cost more than others, and ACH and card gifts are priced differently. Most organizations use a blended estimate based on their own statements. For more on bank transfer giving, see our guide to cutting fees on monthly gifts with ACH donations.

Before setting that number, confirm your processing costs are as low as they should be. Our guide to nonprofit credit card processing rates and charity discounts explains how charity-specific pricing can work.

Decide on Rounding and Bank Transfers

• Rounding. Some forms round the fee up to the next dollar. That's fine if the donor sees the exact amount before submitting.
• Bank transfers. Recalculate for ACH or turn the option off. Don't apply a card-based percentage to a cheaper payment method.

Is the Covered Fee Tax-Deductible? Receipting the Right Amount

Generally, when a donor voluntarily pays more to your organization and receives nothing extra in return, the full amount they paid is treated as their contribution. The covered fee is simply part of the gift. Your organization still pays the processor, but the donor's gift is the total charged.

In practice:

• Receipt the total amount the donor paid, not the pre-fee amount. Splitting it into "donation" and "fee" on the receipt can confuse donors about what's deductible.
• Quid pro quo gifts follow their own rules. Gala tickets and auction items are examples. Disclosure and deductibility depend on the value received, and adding fee coverage doesn't change that analysis.
• Employer matching programs may differ. Some match the full amount charged, others only the base gift. Check each program's rules before telling donors their whole payment will be matched.
• Keep your books clean. Many organizations record the gross contribution as revenue and processing fees as an expense, rather than netting them. This keeps donor records, receipts and bank deposits reconcilable.

Confirm receipting language and accounting treatment with your CPA, especially if you issue year-end summary receipts. For a step-by-step walkthrough, see our guide to recording donation processing fees at gross in your books.

Applying Fee Coverage to Monthly Recurring Gifts

Monthly donors are often your most valuable supporters, so handle fee coverage carefully here:

• Store the choice with the recurring profile. If a donor opts in at signup, apply the covered amount every month. Show it in the first confirmation and in any donor portal.
• Recalculate when the gift changes. If a donor raises their monthly amount, update the fee as well.
• Let donors turn it off easily. One click, or one email to your team, with no need to cancel the whole gift.
• Be transparent about rate changes. If your processing costs change and you adjust the covered amount, tell donors before the next charge.
• Watch failed payments. Expired cards stop the base gift and the fee coverage together. Card updater services and retry logic help; see our guide to using a card account updater to keep recurring billing running.

Some states' automatic renewal laws are written for consumer subscriptions. Whether they reach recurring donations varies, so confirm with counsel and keep your disclosures clear either way. Our state-by-state map of automatic renewal laws is a useful starting point for that conversation.

Next Steps: Getting Your Fee-Coverage Setup Right

Most fee-coverage problems are configuration problems: the wrong formula, a card-only trigger or a confusing label. Before your next campaign, review:

• The donation form's wording, default and placement
• How your gateway calculates and records the covered amount
• Receipts and confirmation emails

If you're evaluating platforms, confirm that your donation software and gateway together support custom amount logic, recurring billing and a connection to your donor database. Ask each provider to demonstrate those features rather than assuming they're included. For churches, our guide comparing Pushpay, Tithe.ly and Subsplash church giving fees walks through how those platforms stack up. If you also accept gifts in person, see our guide to tap-to-donate kiosk costs, placement and giving results. If you're considering mobile giving, our guide to how text-to-give works for nonprofits and what it costs compares the options.

For card acceptance, you can review MannyPay's payment gateway options. MannyPay supports online payment acceptance through gateways such as Authorize.net and NMI.

To review your current processing setup, request a free quote and a MannyPay specialist can walk you through your options.

ME

About the author

MannyPay Editorial Team

Beyond the Swipe's editorial desk researches the publication's guides and news and cites its sources in every article. Articles reviewed by a named MannyPay editor carry that editor's byline.

This article is for general educational purposes and is not legal, tax or financial advice. Card network rules and state laws change; confirm current requirements for your business.