A 100 dollar card sale keeps between 96.02 and 98 dollars depending on which processor takes it, and that spread is the whole decision in one number. This guide compares the top 10 payment processors on the figures that decide what a business actually keeps, starting with the rate on a 100 dollar sale, then the monthly cost at 10,000 dollars of volume, then payout speed and chargeback fees.
Stripe is the pick for an online-first business, because its 2.9 percent plus 30 cents online rate is published, its developer tools are the deepest in the field, and there is no monthly fee. Square is the pick for a business that sells in person, because its 2.6 percent plus 15 cents counter rate is the cheapest common in-person rate and the point-of-sale software is free. Helcim is the pick for a high-volume business, because interchange-plus pricing beats flat rates once monthly volume passes about 10,000 dollars.
Every rate below is the published United States card rate, and every cost comparison uses the same two measures, a 100 dollar sale and a 10,000 dollar month. Read the decision matrix first, then the processor that matches how your customers actually pay, because a processor that is cheap online can be the most expensive one you own at the counter, and the wrong channel choice costs more than any rate difference.
Why the Top 10 Payment Processors Decision Starts With the 100 Dollar Sale
The rate on a 100 dollar sale is the first number to check because it multiplies every transaction the business takes. Stripe online at 2.9 percent plus 30 cents costs 3.20 dollars on a 100 dollar sale. Square online at 3.3 percent plus 30 cents costs 3.60 dollars. PayPal Checkout at 3.49 percent plus 49 cents costs 3.98 dollars. The spread between the cheapest and dearest common option is almost 2 dollars per 100 dollars, which is about 200 dollars a month on 10,000 dollars of volume.
Monthly fees are the second number. Stripe, Square and PayPal charge no monthly fee, while Authorize.net charges 25 dollars a month and Stax charges 99 dollars a month. A monthly fee only pays when the rate saving beats it, and the cost section below shows the exact volume where that happens for each fee-based processor.
Payout speed and chargeback fees are the third number. Square charges nothing for chargebacks, while Stripe and PayPal charge on disputes, which changes the maths for a business with high dispute rates. Standard payouts arrive the next business day at most processors, while instant payouts cost extra everywhere.
- Price the processor on a 100 dollar sale in your most common channel first.
- Model the monthly fee against the rate saving at your real volume.
- Check chargeback fees before signing, because one dispute can cost more than a month of rate savings.
- Confirm payout timing, because a two-day delay is a cash-flow cost.
The 10 Tools at a Glance
The table below lines up the top 10 payment processors side by side, with the starting rate and the job each one fits best. Rates are United States card rates on the standard plan, and the detail sections give the in-person and online rates separately where they differ.
| Tool | Starting price | Best for | Standout strength |
|---|---|---|---|
| Stripe | 2.9% + 30¢ per online transaction | Online businesses and SaaS | Deepest developer tools |
| Square | 2.6% + 15¢ in person; 3.3% + 30¢ online | Retail and in-person sales | Free point-of-sale software |
| PayPal | 2.99% + 49¢ standard online | Checkout conversion | Most trusted checkout brand |
| Braintree | 2.59% + 49¢ per transaction | Larger stores wanting PayPal plus cards | PayPal, Venmo and cards together |
| Authorize.net | $25 a month + 2.9% + 30¢ | Established businesses | Classic gateway with wide support |
| Helcim | Interchange + 0.5% + 8¢ | High-volume sellers | Transparent interchange-plus pricing |
| Adyen | Interchange-plus; pricing on the vendor site | Global and enterprise sales | Worldwide acquiring in one platform |
| Checkout.com | Pricing on the vendor site | International online sales | Strong global payment methods |
| Worldpay | Pricing on the vendor site | Large and omnichannel businesses | Scale and hardware options |
| Stax | $99 a month + interchange | High-volume flat-fee saving | Subscription replaces the percentage markup |
How We Weighed Fees, Speed and Support
A payment processor earns its place on four measures, and the matrix below scores each tool from 1 to 5 on each one. The rate on a 100 dollar sale carries the most weight, because it applies to every transaction. Payout speed and chargeback terms come next, because cash flow and dispute costs decide the real bill. Ease of setup and global reach share the remaining weight.
Stripe scores highest on setup and developer tools, Square scores highest on in-person value, and Helcim scores highest on the rate at volume. No tool leads on all four measures, which is why the best pick depends on the sales channel rather than the brand name.
| Tool | Rate on $100 sale | Payout and disputes | Ease of setup | Global reach |
|---|---|---|---|---|
| Stripe | 4 | 3 | 5 | 5 |
| Square | 4 | 5 | 5 | 3 |
| PayPal | 3 | 3 | 5 | 5 |
| Braintree | 4 | 3 | 4 | 4 |
| Authorize.net | 3 | 3 | 3 | 3 |
| Helcim | 5 | 4 | 4 | 3 |
| Adyen | 5 | 4 | 2 | 5 |
| Checkout.com | 4 | 4 | 3 | 5 |
| Worldpay | 4 | 3 | 3 | 4 |
| Stax | 5 | 4 | 3 | 3 |
The scores are relative, not absolute, and they reflect published rates and documented terms rather than a single test transaction. The point of scoring the top 10 payment processors this way is that the headline rate is never the whole cost, and the matrix keeps monthly fees, chargebacks and payout speed visible next to it. Use the scores to narrow the field to two or three candidates, then run the numbers on your own monthly volume before signing.
Work out your average sale before you compare rates, because the fixed fee bites hardest on small tickets. On a ten-dollar sale, a thirty-cent fee alone adds three percent, which is why the cheapest processor for a coffee shop is rarely the cheapest for a furniture store.
Best Pick by Job
| Job | Pick | Why it wins | Cost on a $100 sale |
|---|---|---|---|
| Online-first business | Stripe | Published rate, best developer tools | $3.20 online |
| In-person retail | Square | Cheapest counter rate, free POS | $2.75 in person |
| Checkout conversion | PayPal | Buyers trust the button | $3.98 via Checkout |
| High volume over $10,000 a month | Helcim | Interchange-plus beats flat rates | About $2.30 |
| Global sales | Adyen | One platform for many countries | Interchange-plus |
| No monthly fee | Stripe | No monthly fee, pay per transaction | $3.20 online |
| Chargeback-prone sales | Square | No chargeback fees | $2.75 in person |
What a 10,000 Dollar Month Really Costs
The rate on one sale answers the wrong question. The right question is what the processor costs on 10,000 dollars of monthly volume, because that is the month the fee-based processors either earn their monthly fee or waste it. The table below prices that month for each tool, assuming 100 sales of 100 dollars each in the processor’s best channel.
Stripe online at 2.9 percent plus 30 cents costs about 1,600 dollars on a 10,000 dollar month, counting the per-transaction fee on 100 sales. Square in person at 2.6 percent plus 15 cents costs about 1,275 dollars on the same volume, which is why a business that mostly swipes should price its channel mix first. PayPal Checkout at 3.49 percent plus 49 cents costs about 1,745 dollars, the dearest common option here.
Helcim at interchange-plus costs about 1,100 dollars on the same month, which is why high-volume sellers switch. Stax at 99 dollars a month plus interchange costs about 1,200 dollars, which beats Stripe once volume passes roughly 8,000 dollars a month. Authorize.net at 25 dollars a month plus 2.9 percent plus 30 cents costs about 1,625 dollars, which only pays when the gateway features are needed.
| Tool | Rate used | Cost on $10,000 | Monthly fee |
|---|---|---|---|
| Stripe | 2.9% + 30¢ online | About $1,600 | $0 |
| Square | 2.6% + 15¢ in person | About $1,275 | $0 |
| PayPal | 3.49% + 49¢ Checkout | About $1,745 | $0 |
| Braintree | 2.59% + 49¢ | About $1,640 | $0 |
| Authorize.net | 2.9% + 30¢ | About $1,625 | $25 |
| Helcim | Interchange-plus | About $1,100 | $0 |
| Stax | Interchange + $99 | About $1,200 | $99 |
Read the table as a decision rule rather than a ranking. A business under 5,000 dollars a month should buy on simplicity and no monthly fee, and Stripe or Square wins. A business over 10,000 dollars a month should price interchange-plus, and Helcim or Stax wins. A business that sells mostly in person should buy on the counter rate, and Square wins by a wide margin. The table covers the standard month, and the next section covers the fees that do not appear in it, because the top 10 payment processors comparison is incomplete until the hidden fees are priced too.
The Hidden Fees That Change the Ranking
The headline rate is never the whole cost, and the fees below decide the real bill for many businesses. International cards add 1.5 percent at Stripe and PayPal, which turns a 100 dollar international sale into a 4.70 dollar fee at Stripe. Currency conversion adds another 1 percent at Stripe, so a business that sells into Europe and converts to dollars pays twice for the same sale.
Chargeback fees are the second hidden cost. Stripe charges 15 dollars per dispute, PayPal charges a dispute fee that varies by case, and Square charges nothing. A business with a 1 percent dispute rate on 500 monthly sales faces 5 disputes a month, which costs 75 dollars at Stripe and nothing at Square, and that gap alone can outweigh a rate difference.
Instant payouts are the third hidden cost. Standard payouts are free and arrive the next business day, but instant payouts cost a percentage of the payout at most processors, usually around 1.5 percent. A business that takes instant payouts daily on 10,000 dollars of monthly volume pays about 150 dollars a month for speed it may not need, and the fix is usually a weekly payout schedule rather than a different processor.
Hardware is the fourth hidden cost. Square sells card readers and terminals separately, and a counter setup with a terminal and a stand can cost several hundred dollars before the first sale. Stripe Terminal hardware costs a similar amount. The hardware pays for itself quickly at a busy counter, but a business that sells online only should not buy any of it.
PCI compliance is the fifth hidden cost. Most processors include basic compliance in the account, but a business that stores card data or runs its own checkout needs a compliance assessment that can cost hundreds of dollars a year. The hosted checkout pages from Stripe and Square avoid most of that cost, because the card data never touches the seller’s server.
Add the hidden fees to the table before deciding. A business with mostly international sales should add 1.5 percent to every rate in the table. A business with high dispute rates should add the chargeback fee to the monthly cost.
A business that needs instant payouts should add 1.5 percent to the payout total. The processor that wins on the headline rate does not always win once those numbers are added, and the honest comparison prices all five fees together.
The 10 Tools in Detail
Each tool below is scored on the same four numbers, so read the ones that match your sales channel before comparing rates. The top 10 payment processors differ more on channel rates and dispute terms than on the headline percentage, and the detail sections show where each one wins and where it costs more than it first appears.
1. Stripe
Stripe is the default for online businesses, and its strength is the combination of a published rate and the deepest developer tools in the field. The online card rate is 2.9 percent plus 30 cents with no monthly fee, international cards add 1.5 percent, and the APIs, documentation and testing tools are the best a developer will find. Subscriptions, invoicing and marketplaces all run on the same platform, and the top 10 payment processors field has no rival that matches Stripe on developer experience.
Stripe Terminal charges 2.7 percent plus 5 cents for in-person payments, which matches Square on a 100 dollar sale at 2.75 dollars. Skip it for a business that sells mostly at a counter, because Square’s point-of-sale software and hardware ecosystem are stronger, and Stripe’s chargeback fees add up for a business with high dispute rates.
2. Square
Square is the pick for sellers who work both sides of the counter, and its strength is that one account covers point-of-sale hardware, an online store, invoices and inventory. In-person card payments cost 2.6 percent plus 15 cents, online payments 3.3 percent plus 30 cents on the free plan, and manually keyed cards 3.5 percent plus 15 cents. Square charges nothing for chargebacks, which saves real money compared with rivals.
The point-of-sale app is free, standard transfers arrive the next business day at no cost, and the Plus plan at 49 dollars a month per location drops the online rate to 2.9 percent plus 30 cents. The free chargeback policy is the detail most buyers miss, because a single dispute at Stripe costs 15 dollars while Square charges nothing, and a business with regular disputes saves more on that policy than on the rate itself. Skip it for a purely online business, because the online rate is higher than Stripe and the developer tools are thinner, and the savings sit at the counter rather than the checkout page.
3. PayPal
PayPal is the most trusted checkout brand in this field, and its strength is conversion. Buyers who already have a PayPal account complete checkout faster, and that recognition lifts completion rates for small stores. Sending money to friends from a bank balance is free in the United States, while commercial card payments run 2.99 percent plus 49 cents and PayPal Checkout button payments run 3.49 percent plus 49 cents.
Card-present sales through Zettle cost 2.29 percent plus 9 cents, which is competitive at a market stall or a pop-up. Skip it as the only processor, because the Checkout rate is the dearest common option here and the cost on a 10,000 dollar month runs about 145 dollars more than Stripe, and the dispute process favours buyers more often than sellers expect.
4. Braintree
Braintree, owned by PayPal, is the pick for a larger store that wants PayPal, Venmo and cards together in one integration. The card rate is 2.59 percent plus 49 cents, which undercuts PayPal’s own Checkout rate, and the platform handles subscriptions, vaulting and mobile SDKs without a monthly fee. Stores that already take PayPal usually add Braintree for the card side.
The trade-off is complexity, because Braintree is built for developers and the setup takes longer than Stripe or Square. Skip it for a small shop, because the integration effort only pays when volume justifies it, and a small store gets the same PayPal button through a simpler PayPal account.
5. Authorize.net
Authorize.net is the classic gateway, and its strength is wide support. Almost every shopping cart, point-of-sale system and accounting tool connects to it, and established businesses that already run it rarely have a reason to leave. The all-in-one plan costs 25 dollars a month plus 2.9 percent plus 30 cents per transaction, and the gateway-only plan suits businesses that already have a merchant account.
The trade-off is that the rate is no better than Stripe while the monthly fee adds 300 dollars a year, and the interface is older than the field leaders. Skip it for a new business, because Stripe or Square gives the same rate with no monthly fee and a faster setup, and Authorize.net only pays when an existing system demands it.
6. Helcim
Helcim is the transparent pick, and its strength is interchange-plus pricing with no monthly fee. The rate is interchange plus 0.5 percent plus 8 cents, which beats every flat rate in this field once monthly volume passes about 10,000 dollars. The pricing page shows the real cost instead of hiding it, and the hardware and invoicing tools cover a small business without add-ons.
The trade-off is that interchange-plus is harder to predict month to month, because the rate moves with the card mix. A month with more premium rewards cards costs more than a month with more debit cards, and the statement shows that difference clearly. Skip it for a business under 5,000 dollars a month, because the saving is small at low volume and the flat-rate simplicity of Stripe or Square is worth more than a few dollars.
7. Adyen
Adyen is the global pick, and its strength is worldwide acquiring in one platform. The processor handles cards, local payment methods and currencies across many countries, which suits a business that sells internationally and wants one settlement and one integration. Enterprise retailers use it to replace a patchwork of local processors.
Pricing is interchange-plus and quoted per business, so confirm the rate before budgeting. Skip it for a domestic small business, because the sales-led setup and the enterprise focus add friction a local seller does not need, and Stripe covers most international card sales for far less effort.
8. Checkout.com
Checkout.com is the international online pick, and its strength is global payment methods. The platform supports cards, wallets and local methods across many markets, with strong fraud tools and fast settlement. Online businesses that sell into Europe and Asia get the most from it, because local methods lift conversion where cards alone do not.
Pricing is quoted per business, so confirm the rate before budgeting. Skip it for a domestic-only store, because the global strength adds nothing when every customer pays with a United States card, and Stripe gives the same domestic rate with a simpler setup.
9. Worldpay
Worldpay is the scale pick, and its strength is omnichannel size. The processor handles online, in-person and phone payments for large businesses, with hardware options and a wide acquiring network. A business with many locations and high volume gets the most from it, because the platform is built for scale rather than simplicity.
Pricing is quoted per business, so confirm the rate before budgeting. Skip it for a small business, because the sales-led process and the enterprise focus add weeks to a setup that Stripe or Square finishes in a day, and the rate advantage only appears at volumes most small businesses never reach.
10. Stax
Stax is the flat-fee pick, and its strength is replacing the percentage markup with a subscription. The plan costs 99 dollars a month plus interchange, which beats Stripe once monthly volume passes roughly 8,000 dollars. A business processing 20,000 dollars a month saves several hundred dollars against a flat rate, and the saving grows with volume.
The trade-off is the monthly fee itself, because a slow month still costs 99 dollars. A seasonal business should check the quiet months before committing, because three slow months at 99 dollars each can erase the saving from nine busy ones. Skip it for a business under 8,000 dollars a month, because the fee eats the saving, and a business with seasonal volume should check the quiet months before committing to a subscription.
Switching Processors Without Losing Sales
Switching processors is the moment most businesses lose money, because a gap in payouts or a broken checkout costs more than a month of rate savings. Run the move in order and check the numbers at each step, and keep the old processor live until the new one has taken real payments.
- Open the new account and complete verification before touching the live checkout.
- Run a test transaction for every payment method your customers use.
- Switch a small share of traffic first, and watch authorisation rates for a week.
- Move subscriptions and saved cards with the card updater, not by asking customers to re-enter details.
- Close the old account only after the last payout clears and the dispute window passes.
A switch that saves 100 dollars a month is worthless if it costs a day of sales, so treat the move as a revenue project first and a rate project second. The safest switches run the new processor beside the old one for a full billing cycle, so subscriptions, refunds and disputes all clear before the old account closes.
Frequently Asked Questions
How much do the top 10 payment processors charge per transaction?
The common United States online rates run from 2.59 percent plus 49 cents at Braintree to 3.49 percent plus 49 cents at PayPal Checkout, with Stripe at 2.9 percent plus 30 cents in the middle. In person, Square charges 2.6 percent plus 15 cents and Stripe Terminal 2.7 percent plus 5 cents. Interchange-plus processors like Helcim cost less at volume, at about 1,100 dollars on a 10,000 dollar month against about 1,600 dollars for Stripe. International cards add 1.5 percent at most processors, so a business with overseas customers should add that to every rate before comparing.
Which payment processor is cheapest for a small business?
Square is cheapest for a business that sells mostly in person, at 2.6 percent plus 15 cents with no monthly fee and no chargeback fees. Stripe is cheapest for a purely online business with no monthly fee, at 2.9 percent plus 30 cents. A business over 10,000 dollars a month should price Helcim or Stax, because interchange-plus beats both flat rates at that volume.
Do payment processors charge a monthly fee?
Stripe, Square, PayPal and Braintree charge no monthly fee, while Authorize.net charges 25 dollars a month and Stax charges 99 dollars a month. Adyen, Checkout.com and Worldpay quote per business. A monthly fee only pays when the rate saving beats it, which for Stax happens at roughly 8,000 dollars of monthly volume, and for Authorize.net the fee buys gateway compatibility rather than a lower rate.
How fast do payment processors pay out?
Standard payouts arrive the next business day at most processors in this field, including Stripe and Square, at no cost. Instant payouts are available at most processors for an extra fee, usually a percentage of the payout. A two-day payout delay is a cash-flow cost, so confirm the standard timing before signing, especially for a business that pays suppliers weekly.
What happens if a customer disputes a payment?
The processor opens a dispute, holds the funds while it reviews the evidence, and charges a dispute fee if the seller loses. Square charges nothing for chargebacks, while Stripe and PayPal charge on disputes. Keep delivery proof, tracking numbers and customer messages, because a dispute is won on evidence rather than on argument, and a processor that sees good evidence decides faster.
Can I use more than one payment processor?
Yes, and many businesses do. A store can take cards through Stripe online and Square in person, or offer PayPal beside a card processor to lift conversion. Running two processors costs nothing extra when neither charges a monthly fee, and it protects the business if one processor holds funds or goes down. Keep the accounting clean by settling each processor to its own ledger, and check the authorisation rate on each one monthly, because a processor that quietly declines more cards costs more than its rate suggests.
Our Pick for Payment Processors, Stated Plainly
Stripe is the pick for an online-first business, because the published 2.9 percent plus 30 cents rate, the developer tools and the absence of a monthly fee make it the safest default. Square is the pick for a business that sells in person, because the 2.6 percent plus 15 cents counter rate and free point-of-sale software win every day at the till.
Helcim is the pick for a business over 10,000 dollars a month, because interchange-plus pricing beats both flat rates once volume passes that line. That is the short version of the whole comparison, and it holds because the top 10 payment processors win on different numbers, so the right buy is the one whose strength matches the sales channel.
Buy the processor that matches how your customers pay. An online store needs Stripe, a shop needs Square, and a high-volume business needs interchange-plus. Match the channel first and the rate second, and the processor will still fit when volume is ten times bigger.