Should You Add PayPal to Checkout? The Fee and Conversion Math
Before you add PayPal to checkout, run the math: PayPal's 3.49% + $0.49 rate, dispute fees, holds, and how many new orders it must win to pay off.
Photo: Pixabay
On this page 6 sections
Key takeaways
- PayPal makes money for you only on orders you would otherwise lose. A card buyer who switches to PayPal just pays a higher fee.
- In our illustrative example, a $60 average order needs about 5 truly new orders out of every 100 PayPal orders to break even. If PayPal takes 20% of your orders, that means total orders need to rise by about 1%.
- PayPal keeps its fees on refunds and charges $15 for a lost claim. That rises to $30 once your dispute rate reaches 1.5% and you had more than 100 sales in the previous three months.
- Pay Later costs 4.99% + $0.49. Use it for high-ticket carts, and keep your own merchant account so a PayPal limitation can't stop all your revenue.
Add PayPal to checkout when it wins you orders you would otherwise lose, and only then. PayPal's standard U.S. rate for its checkout button is 3.49% + $0.49 per sale, which is higher than what most stores pay on a card sale through their own merchant account. Every shopper who would have paid by card anyway and now clicks PayPal costs you money. The button earns its place only if enough new buyers come with it, and you can work out that number before you install anything.
What PayPal Charges per Order
PayPal publishes its rates on its U.S. merchant fees page. These are PayPal's own prices, not card network rules. PayPal changes them from time to time, so check the page on the day you decide.
| Payment Type (U.S. Domestic) | PayPal's Published Rate |
|---|---|
| PayPal Checkout and PayPal Guest Checkout | 3.49% + $0.49 |
| Pay with Venmo | 3.49% + $0.49 |
| Standard credit and debit card payments through PayPal | 2.99% + $0.49 |
| PayPal Pay Later | 4.99% + $0.49 |
| Buyer outside the U.S. | Add 1.50% to the domestic rate |
Three charges sit outside that table. Refunds come first: according to PayPal's fee schedule, the fees you paid to receive a payment are not returned when you refund a commercial transaction. A fully refunded $60 order still costs you $2.58. Disputes come second: a lost claim carries a $15 dispute fee. The fee rises to $30 once your dispute rate reaches 1.5% and you had more than 100 sales in the previous three months. Bank chargebacks are the third. PayPal's U.S. schedule also lists a separate $20 chargeback fee.
Your card costs are on your processing statement. Divide one month's total fees by that month's total card volume to get your effective rate. Compare that number with PayPal, not a quoted headline rate. If refunds are a big part of your business, read whether you get processing fees back when you issue a refund and check your own processor agreement.
When Adding PayPal to Checkout Pays for Itself
Once the button is live, PayPal orders fall into two groups. Shifted orders come from shoppers who would have paid by card. They bring no new revenue, and each one costs you the gap between PayPal's rate and your card rate. Incremental orders come from shoppers who would have left without PayPal. They bring the whole margin of the sale.
You can usually spot the buyers behind incremental orders. One is the first-time visitor from a social ad who doesn't trust your card form yet. Another is the phone shopper who won't type 16 digits on a small screen. Some buyers keep their card number with one company on purpose. Stores whose traffic is impulse-driven, mobile-heavy and new to the brand tend to get the most of these buyers. A repeat customer with a card already saved on your site is almost always a shifted order.
Worked Example: How Many New Orders PayPal Must Win
Illustrative. PayPal's rate is its published 3.49% + $0.49. The card rate of 2.6% + $0.20 is an assumption that stands in for your statement's effective rate. Gross margin is 30% of the order before payment costs. All buyers are domestic.
Take a $60 average order:
- PayPal fee: $60 × 3.49% + $0.49 = $2.58
- Card fee: $60 × 2.6% + $0.20 = $1.76
- Extra cost of each shifted order: $0.82
- Margin from each incremental order: $18.00 − $2.58 PayPal fee = $15.42
Call the number of incremental orders in every 100 PayPal orders X. PayPal breaks even when X × $15.42 equals (100 − X) × $0.82. That works out to about 5. If 3 of every 100 PayPal orders are truly new, you lose about $33 per 100. At 10 new orders, you come out about $80 ahead.
Order size changes the answer, because the $0.49 fixed fee weighs more on a small sale. PayPal's fee is about 5.5% of a $25 order but 3.8% of a $150 order.
| Average Order | Margin (30%) | PayPal Fee | Card Fee (Illustrative) | Extra Cost per Shifted Order | Incremental Orders Needed per 100 PayPal Orders |
|---|---|---|---|---|---|
| $25 | $7.50 | $1.36 | $0.85 | $0.51 | About 8 |
| $60 | $18.00 | $2.58 | $1.76 | $0.82 | About 5 |
| $150 | $45.00 | $5.73 | $4.10 | $1.63 | About 4 |
Turn the Break-Even Into a Conversion Target
You can't see which PayPal buyers are new, but you can see whether total orders move. Measure checkout conversion for a few weeks before the button goes live and for the same length of time after. If your platform allows it, split-test instead.
The break-even figure is per 100 PayPal orders, so translate it before you compare. Suppose PayPal takes 20% of orders and your break-even is 5 new orders per 100 PayPal orders. Total orders then need to rise by about 1% (0.20 × 5%). A smaller lift means the button is costing you. Don't hold your overall conversion rate to the 5% figure itself. That test would tell you to remove a button that is actually paying for itself. Our guide to checkout conversion rate benchmarks explains how to set a clean baseline.
International buyers change the math again. PayPal adds 1.50% for a buyer outside the U.S., so the $60 order above costs $3.48. Cross-border card sales carry their own extra fees, so compare like with like.
PayPal Disputes Follow PayPal's Rules
A card chargeback starts when the cardholder calls their issuing bank. It runs under Visa, Mastercard, American Express or Discover rules and reason codes, and the issuer decides. A PayPal dispute starts in PayPal's Resolution Center and runs under PayPal's user agreement. If you and the buyer don't settle it, it escalates to a claim, and PayPal decides.
The deadlines are short for you and long for the buyer. A buyer has 180 days from payment to open an "item not received" case. You get 10 days to respond to a claim. Sellers in the high-volume dispute tier get 3 days, and they can lose Seller Protection eligibility until their rate drops back under 1.5%. If you resolve the case with the buyer before it becomes a claim, you don't pay the dispute fee.
A PayPal payment funded by a credit card can also turn into a real chargeback if the buyer goes to their card issuer instead. Then the card network's rules apply, and PayPal's Seller Protection may not cover it. Seller Protection has its own eligibility conditions around shipping and documentation. Read PayPal's current terms instead of assuming a sale is covered.
Long delivery windows are where sellers get hurt, especially dropshippers. Upload tracking as soon as you have it. State realistic delivery times on product pages and in confirmation emails, and answer buyer messages within a day. Those habits help you win cases in both systems. Card networks watch dispute ratios on your merchant account separately, so track both channels. See chargeback ratio limits that put your account at risk.
Keep PayPal Beside Your Merchant Account, Not Instead of It
Like any company that carries your payment risk, PayPal can hold payments, set aside a reserve or limit an account until it is satisfied. The usual triggers are a new account, a sudden jump in volume, rising claims, preorders and slow fulfillment. Card processors react to the same things. What differs is how much of your revenue is exposed. If PayPal is your only way to get paid, a limitation stops all your revenue at once. With your own merchant account running cards, it stops one payment method.
If a big launch or holiday push is coming, warn every provider ahead of time. Our article on how to warn your processor before a sales spike covers what to send.
Venmo and Pay Later Need Their Own Math
Venmo checkout runs through the same PayPal integration at the same 3.49% + $0.49. It mainly reaches U.S. mobile shoppers who already use Venmo. Whether you can offer it depends on your account, the buyer's device and your platform, so confirm it before you advertise it.
Pay Later costs more. PayPal charges 4.99% + $0.49, and you receive the full payment up front. On a $400 cart, that is $20.45, compared with $14.45 for a standard PayPal Checkout sale. Each Pay Later order that would have closed anyway costs you an extra $6.00. It pays off on high-ticket carts where shoppers stall on price, and rarely on a $20 impulse buy. Use PayPal's own on-site messaging rather than writing your own "0% interest" banners, because advertising credit terms can bring disclosure requirements under federal and state law. Check with a lawyer if you plan custom promotions.
Add one button at a time and measure each one. Our comparison of express checkout buttons covers the trade-offs against Apple Pay, Google Pay and Shop Pay.
How to Add PayPal to Checkout Next to Your Card Processor
- Run cards through your own merchant account. Process Visa, Mastercard, American Express and Discover through a dedicated account and an online payment gateway such as Authorize.net or NMI. You get your own underwriting relationship, your own statements and pricing you can negotiate.
- Add PayPal as a second option on your platform. Shopify lets PayPal sit alongside your card processor; see when to use a Shopify third-party payment gateway. WooCommerce stores add PayPal through a plugin next to their card gateway. MannyPay handles the card side through its Shopify integration and WooCommerce payment integration.
- Place the button where hesitant buyers are. Express buttons at the top of cart and checkout serve mobile shoppers, with a clear card form below. Test product-page buttons separately. They are the most likely to shift card buyers rather than add new ones.
- Keep card fee programs on the cards they're allowed on. Surcharges apply only to credit card transactions, never debit or prepaid, under card network rules and state law. Visa's U.S. merchant surcharge Q&A says a debit card can't be surcharged even when the cardholder chooses "credit" at checkout, and some states ban surcharging outright. Fees on PayPal payments fall under PayPal's user agreement. If you use surcharging where permitted or cash discount pricing, check PayPal's terms before you add any fee to PayPal orders. This is general information, so confirm your setup with your processor and a qualified advisor.
- Reconcile the two deposit streams separately. PayPal pays out on its own schedule with its own fee reporting. Our guide to credit card reconciliation shows how to match both to orders.
- Review four numbers monthly: overall conversion, PayPal's share of orders, effective cost per order on each channel, and dispute rate on each channel.
If PayPal's share keeps climbing but total orders don't rise by your break-even target, take the button off product pages or move it lower on the checkout page. Then measure again.
If PayPal restricts your category, or card networks treat it as higher risk, set up card acceptance first. MannyPay offers merchant accounts for online businesses, including high-risk processing, with 3-D Secure authentication for card-not-present sales.
Start with the break-even number. Pull your last statement and work out your effective card rate and your margin. Then run the worked example with your own average order and turn the result into a conversion target. If you want a second set of eyes on the card side, request a free processing quote and a MannyPay specialist will respond within one business day.
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I made the three requested fixes:
- Arithmetic: The loss at 3 new orders per 100 now reads "about $33." I also rechecked every other figure, including the table, the refund cost, the $3.48 international fee and the $6.00 Pay Later gap. They all hold.
- Conversion logic: I finished the 20% example under a new H3 heading, "Turn the Break-Even Into a Conversion Target." It explains that the break-even counts per 100 PayPal orders, so total orders only need to rise about 1%. It also warns against holding overall conversion to the 5% figure. The takeaways and the callout box now say the same thing.
- Surcharging: Step 4 now says surcharges apply only to credit cards, never debit or prepaid, under network rules and state law. I sourced this to Visa's own surcharge Q&A, which says a debit card can't be surcharged even when run as credit. The step doesn't mention the Durbin Amendment. That law limits debit interchange fees, and I couldn't find a source showing it's what bans debit surcharges, so I left it out. I added the Visa Q&A and a state-law summary from LawPay to the sources.
Sources
- PayPal: Fees (U.S. merchant fees page)
- PayPal: U.S. Merchant Fees schedule (October 29, 2025, PDF)
- PayPal: Installment Payments With PayPal Pay Later
- Visa: U.S. Merchant Surcharge Q&A (PDF)
- LawPay: Credit Card Surcharge Laws by State for 2026
- Payline Data: How to Refund on PayPal
- Digistore24: PayPal Chargeback: How the Dispute Process Actually Works for Sellers
- Chargeflow: PayPal Dispute Time Limits
- Chargeback.io: PayPal Statistics 2026 (dispute filing windows)
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.
