Almost none of the products in this category charge a monthly subscription fee, which makes them unusual among the software reviewed on this site and easy to compare on the wrong number. The real cost is per-transaction, a percentage plus a fixed fee that varies by card type, currency and country, and it is that rate, not a headline plan name, that determines what a business actually pays to get paid. This ranking is aimed at a company choosing how to accept online or in-person card payments for the first time, or replacing a processor that has become expensive or unreliable at its current volume. We judged how much of a signup is instant versus a multi-week underwriting review, what the real all-in cost looks like once currency conversion, chargebacks and add-ons are counted, how easily transaction history and customer payment data come back out if a company switches providers, and which vendors are actually built for a small or growing business rather than a global enterprise with its own treasury team.
Visibility in this ranking can be paid for. Payment moves a vendor's position within the
shortlist; it never adds a vendor, and it never changes a word of the review. The largest vendors in payment processing software
cannot hold places 1 to 3. How it works: placement disclosure ·
editorial process.
How we ranked these
Setup: instant signup versus underwriting review
Getting approved to accept payments is where this category actually differs most, more than any feature grid suggests. Stripe, Mollie, PayPal Business and Square all offer instant or near-instant self-serve signup for a standard online business, with underwriting happening in the background rather than blocking a first test transaction. Adyen, Checkout.com and Worldpay assume a sales-assisted onboarding from the start, appropriate for a business already processing meaningful volume but slower and more document-heavy for a small merchant just getting started. Authorize.net sits in between: signup is self-serve, but it is a gateway that still needs a separate merchant account underneath it in many setups, an extra piece smaller businesses often do not expect. Razorpay follows the same self-serve model as Stripe but only for businesses actually operating in India.
The real price: the rate, the currency fee, and the monthly extras
The headline rate is rarely the full story. Stripe and Adyen both charge a percentage plus a fixed fee per transaction with no monthly account fee, but Adyen's rate is negotiated rather than published, so a small business cannot price it without a sales conversation. PayPal Business and Braintree charge noticeably more per transaction than Stripe or Adyen for standard card checkout, a real cost that trades off against PayPal's consumer trust at checkout. Authorize.net is the outlier with a genuine $25 monthly gateway fee on every plan, on top of per-transaction pricing, a cost structure worth flagging specifically since most of this category has moved away from flat monthly fees. GoCardless and Payoneer solve narrower jobs, recurring bank-debit collection and cross-border payouts respectively, and are usually bought alongside a card processor rather than instead of one.
Getting your data out: transaction history and the customer's card token
What a payment processor holds that is genuinely hard to walk away from is not the software, it is the stored, tokenized card details of returning customers and years of transaction and dispute history. Every processor here exports transaction and settlement history as CSV or through an API, but tokenized card data is the real lock-in: card networks generally do not let one processor's stored token be read or reused by another processor, so a switch usually means asking existing customers to re-enter their card details rather than migrating them silently. Stripe, Adyen and Checkout.com all publish clear API-based exports of transaction and dispute history for a technical buyer; Klarna and GoCardless, narrower products, are less commonly evaluated on this specific point since they are rarely a company's sole payment method.
Independence from the vendor: who owns the rail your money moves through
Ownership has shifted meaningfully across this category in the last two years. Global Payments completed its acquisition of Worldpay on January 12, 2026, simultaneously divesting its own Issuer Solutions business to FIS, which supersedes Worldpay's prior GTCR-majority ownership structure entirely. Klarna completed its IPO on the NYSE in September 2025, moving from a private fintech to a newly public company under real quarterly disclosure. Braintree, owned by PayPal since 2013, has been rebranded again as "PayPal Enterprise Payments," with its old standalone marketing site now redirecting entirely to paypal.com. Stripe and Adyen remain the two large independent operators in this list, Stripe still privately held with no public filings, Adyen publicly traded on Euronext Amsterdam since 2018.
Who it's for: general card acceptance versus a narrower specialist job
Most businesses shopping this category want general card acceptance for an online store or app, which is the job Stripe, Mollie, Adyen, PayPal Business, Square and Checkout.com all compete for directly, differing mainly in rate, geography and how self-serve the signup is. A subscription software company that wants to hand off sales-tax and VAT compliance along with payments fits Paddle's merchant-of-record model better than a standard gateway. A business collecting recurring invoices from other businesses, reducing card-decline churn on subscriptions, is better served by GoCardless's bank-debit collection alongside a card processor, not instead of one. A freelancer or marketplace seller receiving money from platforms like Upwork or Amazon internationally is Payoneer's actual audience, a payout and receivables tool rather than a checkout gateway at all.
The 15 tools, reviewed
#1 Mollie
Transparent European payments, no lock-in contract · Netherlands · mollie.com
No lock-in contract Strong EU payment-method coverage Regulated by DNB
Mollie built its reputation on doing the basics honestly: published per-method rates with no minimum monthly cost and no lock-in contract, at a time when several larger competitors on this list require a sales call before a small business can see a real number. Its coverage of European local payment methods, iDEAL, Bancontact and similar bank-linked options that convert better than cards in their home markets, is genuinely stronger than most global processors offer out of the box.
Where it falls short
It has less enterprise-grade depth and global reach than Stripe or Adyen, and a business selling primarily outside Europe will find its local-method advantage largely irrelevant. Support and account management are lighter-touch than what a large negotiated Adyen or Checkout.com contract includes.
Wrong for
A large enterprise needing negotiated volume-based rates and dedicated account management, or a business selling mainly outside Europe, will get more from Stripe or Adyen than from Mollie's European-first design.
Pricing: Pay-as-you-go per-method transaction fees, for example 1.80% + EUR0.25 for EEA Visa consumer cards; no minimum costs, no lock-in contract; in-person card payments EUR0/month pay-as-you-go or EUR20/month Pro tier with lower rates. (none)
Visit Mollie →
#2 Razorpay
Flat 2% domestic payments, built for India · India · razorpay.com
Flat 2% domestic rate India-first payment coverage Pre-IPO structure
Razorpay is the dominant payment gateway for Indian D2C brands, SaaS companies and startups, with deep coverage of India-specific payment methods, UPI, netbanking and local wallets, that global processors typically support only partially. Its 2% flat domestic rate is the simplest, most comparable published number in this entire category, with no setup fee, annual maintenance charge or refund-processing fee layered on top. The company redomiciled its holding structure from the US back to India in 2023 specifically to prepare for a planned India IPO.
Where it falls short
Its relevance drops sharply outside India and South Asia, where its payment-method coverage and local banking relationships do not apply, and international-card and enterprise pricing require a custom quote rather than a published rate. A business without meaningful India-based revenue gains little from choosing it over a more geographically neutral processor.
Wrong for
A business with no operations or customer base in India or South Asia should choose Stripe, Adyen or Mollie instead; Razorpay's core advantage is entirely India-specific.
Pricing: Flat 2% per successful domestic transaction across payment instruments, no setup fee, no annual maintenance charge, no refund-processing fee; international cards up to 3%; bank transfers roughly 1%; custom enterprise pricing above INR500,000/month volume. (none)
Visit Razorpay →
#3 Paddle
Merchant of record for SaaS and software sellers · United Kingdom · paddle.com
Merchant of record Handles global VAT/sales tax All-inclusive rate
Paddle takes on the legal role of merchant of record for the software sellers using it, meaning Paddle itself, not the seller, is responsible for collecting and remitting sales tax and VAT across every jurisdiction a customer might be in, along with owning fraud and chargeback liability. That is a genuinely different trade than a standard gateway offers: a materially higher per-transaction rate in exchange for a compliance burden most small software companies would otherwise need a specialist accountant to manage themselves.
Where it falls short
At 5% plus $0.50 per transaction, its rate runs well above Stripe's or Adyen's standard card-processing fees, a real cost that only makes sense once the value of offloaded tax compliance is counted. It is built specifically for software and digital-goods sellers, and the model fits poorly for a high-volume, low-margin physical-goods business.
Wrong for
A high-volume, low-margin physical-goods retailer, or any business not selling software or digital products across many tax jurisdictions, will find Paddle's rate hard to justify against a standard gateway.
Pricing: 5% + $0.50 per checkout transaction, all-inclusive: covers payment processing, global sales-tax and VAT compliance and remittance, fraud protection, and support; no monthly fee. (none)
Visit Paddle →
#4 Stripe
Developer-first payments, instant self-serve signup · United States · stripe.com
Developer-first API Instant self-serve signup Broadest ecosystem and docs
Stripe built the developer experience this entire category is now judged against: clear published pricing, instant self-serve signup, and documentation extensive enough that a solo developer and a large enterprise integration team both find what they need. It privately holds no public financial filings, but its ecosystem, from Checkout to Billing to Connect for marketplaces, is the broadest of any single vendor in this ranking, and its reliability track record at scale is well established.
Where it falls short
In-person and point-of-sale hardware is considerably less mature than Square's, so a business needing both online and physical retail payments in one product may find the in-person side underdeveloped. Its standard rate, while published, is not the cheapest in this category for a price-sensitive small business willing to shop around.
Wrong for
A retail or restaurant business needing mature, integrated point-of-sale hardware alongside online payments will get a more complete experience from Square than from Stripe's online-first design.
Pricing: 1.5% + EUR0.25 for domestic EEA cards, higher for UK and international cards, per Stripe's published rate card; no monthly fee for core payments; optional add-ons like Sigma analytics and Tax carry separate subscriptions. (none)
Visit Stripe →
#5 Adyen
Enterprise-grade single platform, negotiated pricing · Netherlands · adyen.com
Publicly traded (Euronext) Negotiated enterprise rates Single global platform
Adyen runs payments on one platform end to end, acquiring, processing and settlement, rather than stitching together partners the way some competitors do, and that architecture is a real reason enterprise-scale clients like Uber, Spotify and eBay have standardized on it. Publicly traded on Euronext Amsterdam since its 2018 IPO, it offers a level of financial transparency several private competitors on this list do not.
Where it falls short
Onboarding is sales-assisted rather than self-serve, and exact pricing is negotiated rather than published, which makes it a poor fit for a small business wanting to see a number before talking to anyone. Its platform depth is genuinely built for high-volume, complex businesses, and a small merchant will not use most of what it offers.
Wrong for
A small business wanting instant self-serve signup and a published rate without a sales conversation should choose Stripe or Mollie instead of Adyen's enterprise-oriented onboarding.
Pricing: Interchange++ model, a $0.13 fixed processing fee plus a method-specific variable fee, per Adyen's published pricing page; no monthly, setup, integration or closure fees; exact rates are negotiated per merchant. (none)
Visit Adyen →
#6 PayPal Business
The most recognized checkout button for buyers · United States · paypal.com
Highest consumer brand trust Instant self-serve signup Owns Braintree and Venmo
PayPal remains the checkout option most consumers recognize and trust on sight, which measurably reduces cart abandonment for some businesses even when it is not the cheapest option available, and instant self-serve signup makes it one of the fastest ways for a very small business to start accepting payments today. Its buyer and seller protection programs are also more consumer-familiar than most competitors' equivalent policies.
Where it falls short
Its 3.49% + $0.49 standard rate runs noticeably higher than Stripe's or Adyen's per-transaction cost, a real premium that only pays for itself if the brand-trust effect on conversion is genuine for a given business. Account holds and reserve requirements on new or high-dispute merchants have a long-standing reputation for being applied without much warning.
Wrong for
A high-volume business highly sensitive to per-transaction cost, without a specific need for PayPal's consumer brand recognition at checkout, will pay less with Stripe, Adyen or Mollie.
Pricing: 3.49% + $0.49 standard PayPal Checkout rate in the US, per PayPal's published fee page; no monthly fee to start; optional Invoicing subscription at $14.99/month. (none)
Visit PayPal Business →
#7 PayPal Enterprise Payments (Braintree)
Braintree, rebranded and folded into PayPal · United States · paypal.com
Rebranded PayPal Enterprise Payments (2025) Flexible developer SDKs Owned by PayPal since 2013
This product built its reputation as Braintree, historically popular with marketplaces and subscription platforms for its flexible SDKs and card vaulting, before PayPal's own site began describing it as "PayPal Enterprise Payments" and redirecting the old braintreepayments.com domain entirely to paypal.com. The underlying technology and its 2.89% + $0.29 standard rate continue largely unchanged; what has changed is that it no longer operates as an independently marketed brand separate from its owner.
Where it falls short
Its standalone marketing identity has effectively disappeared into PayPal's own branding, which makes it harder to evaluate as a distinct product from PayPal Business itself without digging into PayPal's enterprise sales materials directly. Its per-transaction rate is also higher than Stripe's or Adyen's for standard card processing.
Wrong for
A business wanting to evaluate a genuinely independent processor, separate from PayPal's brand and roadmap, should compare Stripe, Adyen or Checkout.com instead.
Pricing: 2.89% + $0.29 per transaction standard; +1% surcharge for non-USD currency; +1% for non-US-issued cards; $15 flat chargeback fee; a reduced 2.19% + $0.29 rate is available for verified 501(c)(3) nonprofits. (none)
Visit PayPal Enterprise Payments (Braintree) →
#8 Square
Integrated in-person and online payments · United States · squareup.com
Free POS software tier Best-in-class in-person hardware Owns Afterpay
Square is best known for integrated point-of-sale hardware and software that a retail store or restaurant can set up in an afternoon, and it is one of the few vendors in this category with a genuinely free software tier, not just no monthly fee to start, covering basic POS, an online site builder and invoicing at no cost beyond per-transaction processing. Owning Afterpay since 2022 also gives it a built-in buy-now-pay-later option most pure online gateways lack natively.
Where it falls short
Its online-only checkout and developer API are less mature than Stripe's for a business that is primarily an online store or SaaS product without a physical retail component. Processing rates on the free tier run higher than the discounted rates available on the paid Plus plan, a trade-off worth calculating against actual transaction volume.
Wrong for
A purely online business or SaaS company with no physical retail component gets more from Stripe's or Adyen's deeper online and developer tooling than from Square's in-person-first design.
Pricing: Per-transaction processing fee on the free Free plan, which includes basic POS, online site builder, item library and invoicing at no monthly cost; a paid Plus tier lowers processing rates and adds features, with a free trial. (free plan)
Visit Square →
#9 Worldpay
Legacy global acquirer, now part of Global Payments · United States · worldpay.com
Now owned by Global Payments (Jan 2026) Legacy global acquirer Omnichannel enterprise retail
Worldpay is one of the largest and longest-established global payment acquirers, historically strong with omnichannel enterprise retailers running both in-store and online payments through one relationship. Its ownership changed again on January 12, 2026, when Global Payments completed its acquisition and simultaneously divested its own Issuer Solutions business to FIS, superseding the GTCR-majority ownership structure Worldpay operated under since being spun out from FIS in February 2024.
Where it falls short
Pricing is entirely quote-only with a sales-led, document-heavy onboarding process, a poor fit for a small business wanting to see a number and start processing the same day. Two ownership changes in under two years, the 2024 FIS spinout and the 2026 Global Payments acquisition, mean its roadmap and account-management structure have been in flux.
Wrong for
A small or newly formed business wanting fast self-serve signup and published pricing should choose Stripe, Mollie or PayPal Business instead of Worldpay's enterprise-oriented, quote-only process.
Pricing: Quote-only enterprise acquiring model; no published self-serve rate card. (none)
Visit Worldpay →
#10 Checkout.com
Enterprise-grade processing on owned infrastructure · United Kingdom · checkout.com
Enterprise clients (Netflix, Uber Eats) Owns its own processing infrastructure Valuation cut from $40B to ~$12B
Checkout.com built and owns its processing infrastructure rather than reselling a third party's rails, which large clients like Netflix, eBay, Uber Eats and Pinterest have valued for the control and reliability that ownership gives over the full payment flow. The company reported reaching profitability by the end of 2024 after a steep valuation markdown, from a $40 billion peak in January 2022 to roughly $12 billion as of a September 2025 employee share buyback, worth knowing when evaluating its financial trajectory.
Where it falls short
There is no self-serve signup or published rate card; every quote requires a sales conversation and a business profile and risk-category assessment first, which is slow for a smaller merchant. The steep 2022-to-2025 valuation decline, even alongside reported profitability, is worth asking about directly as part of any long-term vendor-risk assessment.
Wrong for
A small business wanting instant self-serve signup and a published rate should choose Stripe or Mollie; Checkout.com's enterprise-first onboarding is a poor match for that buyer.
Pricing: Offers either a flat-rate or an Interchange++ option depending on business profile and risk category, explicitly quote-only; free processing available for registered charities. (none)
Visit Checkout.com →
#11 GoCardless
Bank-to-bank Direct Debit for recurring payments · United Kingdom · gocardless.com
Bank Direct Debit, not cards Reduces recurring-payment churn FCA-authorized
GoCardless solves a specific, narrower problem than the card processors in this ranking: collecting recurring payments by pulling directly from a customer's bank account rather than charging a card, which measurably reduces the involuntary churn that comes from expired or declined cards on a subscription. Its fee caps, GBP4 to GBP5.60 depending on tier, mean the percentage-based cost tops out on larger transactions in a way pure percentage pricing does not.
Where it falls short
It is not a general card-acceptance gateway and cannot process one-off card payments the way Stripe or Adyen can, so it is almost never a business's only payment method. Bank-debit collection also settles more slowly than a card charge and carries a real, if lower, failure rate of its own from insufficient funds or mandate cancellations.
Wrong for
A business needing to accept one-off card payments from new customers, rather than collecting recurring invoices or subscriptions from known customers, needs a card processor like Stripe or Mollie instead.
Pricing: Tiered percentage plus fixed fee per transaction: Standard 1% + 20p capped at GBP4, Advanced 1.25% + 20p capped at GBP5, Pro 1.4% + 20p capped at GBP5.60; international rates 2-2.4% + 20p; Custom enterprise plan for GBP1m+ annual revenue. (none)
Visit GoCardless →
#12 Authorize.net
Long-established gateway, owned by Visa · United States · authorize.net
Owned by Visa (via CyberSource) Standing $25/month gateway fee Est. 1996
Authorize.net dates to 1996, making it one of the oldest payment gateways still in active use, and Visa has owned it since its 2010 acquisition of parent company CyberSource for $2 billion, keeping it and CyberSource as separate branded services rather than merging them. It remains commonly used purely as a gateway layered on top of a separately obtained merchant account, a structure many newer all-in-one processors have moved away from.
Where it falls short
The standing $25 monthly gateway fee, charged regardless of transaction volume, is a genuine and unusual cost in a category most competitors have moved away from charging at all; a very low-volume business pays that fee every month whether or not it processes a single sale. Its interface and account structure also carry more legacy complexity than a newer, unified product like Stripe or Square.
Wrong for
A very low-volume or seasonal business will find the standing $25 monthly fee a real drag on cost-per-transaction compared with Stripe's, Mollie's or Square's no-monthly-fee structures.
Pricing: $25/month gateway fee on all plans, plus per-transaction fees: All-in-one 2.9% + 30 cents; Gateway-only 10 cents + a 10-cent daily batch fee; Gateway+eCheck adds 0.75% for eCheck; no setup fee, no early termination fee. (none)
Visit Authorize.net →
#13 Payoneer
Cross-border payouts for freelancers and sellers · United States · payoneer.com
Cross-border payouts, not card acceptance Publicly traded (NASDAQ: PAYO) Popular with Amazon/Upwork sellers
Payoneer solves a different problem than the rest of this ranking: receiving cross-border payouts, from marketplaces like Amazon and Upwork, from B2B clients, or from other platforms, into local currency accounts a freelancer or seller can withdraw from cheaply, rather than accepting card payments from customers at checkout. It has been publicly traded on Nasdaq since a 2021 SPAC merger, and receiving directly from a marketplace carries no fee at all.
Where it falls short
It does not process card payments from a company's own customers, so it is not a substitute for a checkout gateway like Stripe or Mollie for a business that sells directly to consumers. The $29.95 annual low-activity fee, while waived under some conditions, is a real cost for an account that receives under $6,000 in a year.
Wrong for
A business needing to accept card payments directly from its own customers at checkout needs a processor like Stripe or Mollie; Payoneer solves cross-border receiving, not customer-facing checkout.
Pricing: No monthly subscription for a standard account; fee-per-action: marketplace receiving is free, credit-card receiving up to 3.99% + $0.49, bank/ACH receiving roughly 1%; a $29.95 annual fee applies only if the account receives under $6,000 in any 12-month period. (none)
Visit Payoneer →
#14 Klarna
Buy-now-pay-later checkout, newly public · Sweden · klarna.com
Newly public (NYSE: KLAR, Sept 2025) Buy-now-pay-later specialist Swedish banking entity
Klarna is primarily a buy-now-pay-later and checkout-financing provider, letting a customer split a purchase into installments rather than pay the full card amount upfront, a feature that measurably lifts conversion for many e-commerce merchants when offered as one option among several at checkout. It completed its IPO on the NYSE in September 2025, pricing 34.3 million shares at $40, moving from a private Swedish fintech to a newly public company under real quarterly disclosure.
Where it falls short
Merchant pricing is entirely quote-only with no published rate card, making an early cost comparison difficult. It is not a general card-acceptance replacement and is almost always added as one checkout option alongside an existing processor rather than used as a business's sole payment method.
Wrong for
A business wanting a single, general-purpose card processor rather than an added installment-financing option should choose Stripe, Adyen or Mollie instead of evaluating Klarna as a standalone processor.
Pricing: Merchant pricing is quote-only, negotiated per merchant through a sign-up portal or sales contact; typically a percentage plus fixed fee per transaction for BNPL and checkout options. (none)
Visit Klarna →
#15 BlueSnap
All-in-one global payments, now under Payroc · United States · bluesnap.com
Now under Payroc Multi-currency PSP + acquiring SaaS and subscription focus
BlueSnap positions itself as an all-in-one global payment platform for SaaS and subscription merchants, combining a payment service provider and regional acquiring into one contract rather than requiring a business to stitch a gateway and a separate acquirer together itself. Its own site now brands as "BlueSnap, Powered by Payroc," reflecting a recent integration into the Payroc payments group worth confirming the specifics of before signing a contract.
Where it falls short
Pricing is entirely region-specific and contract-based, with no published flat rate to compare against competitors upfront, and the recent Payroc integration makes its current ownership and support structure less settled than a longer-established independent competitor's. It has a smaller public profile and fewer large-brand case studies than Stripe or Adyen.
Wrong for
A small business wanting instant self-serve signup and a published rate should choose Stripe or Mollie instead of BlueSnap's region-by-region, contract-based onboarding.
Pricing: No public flat-rate pricing page; region-specific Merchant Application Pricing Agreements (US, UK, EU, Canada, Australia, Israel) are contract-based per region. (none)
Visit BlueSnap →
Questions and answers
What is the best payment processing software in 2026?
Mollie ranks #1 here for most small and mid-sized online businesses: pricing is transparent and published with no lock-in contract or monthly minimum, and its European payment-method coverage is unusually strong. Razorpay is the better pick for a business operating in India specifically, with a simple flat 2% domestic rate. Paddle is the better pick for a software company wanting to hand off sales-tax and VAT compliance along with payment processing. Stripe and Adyen remain the strongest general-purpose choices once a business has outgrown a simpler starting point.
Why don't most payment processors have a free plan?
Because the business model itself is usage-based rather than subscription-based: most processors in this category, Stripe, Adyen, PayPal Business, Mollie and Razorpay among them, charge no monthly software fee at all and instead take a percentage plus a fixed fee only when a transaction actually happens, which functions like a free plan in that there is no cost to sign up and no charge until money moves. Authorize.net is the exception worth knowing about, since it charges a standing $25 monthly gateway fee regardless of transaction volume, on top of per-transaction pricing.
What happened to Worldpay's ownership?
Global Payments completed its acquisition of Worldpay on January 12, 2026, simultaneously divesting its own Issuer Solutions business to FIS as part of the same transaction. This replaces the prior ownership structure, in which GTCR held a majority stake and FIS held a minority stake following Worldpay's spinout from FIS in February 2024. A buyer researching Worldpay's ownership from an older source should treat the Global Payments acquisition as the current, authoritative status.
What is the difference between Stripe and Adyen?
Both charge a percentage plus a fixed fee per transaction with no monthly account fee, but they target different buyers. Stripe publishes a clear rate card and offers instant self-serve signup, built for developers and businesses of any size to start accepting payments the same day. Adyen negotiates rates individually and onboards through a sales-assisted process, built for larger, higher-volume businesses, Uber and Spotify-scale clients are typical Adyen customers, willing to trade self-serve speed for negotiated, volume-based pricing.
Is Braintree still a separate product from PayPal?
Not in its marketing or branding. PayPal has rebranded Braintree as "PayPal Enterprise Payments," and Braintree's old standalone website, braintreepayments.com, now redirects entirely to paypal.com. PayPal has owned Braintree since 2013 and has run it as a separate brand for most of that time, aimed at marketplaces and subscription platforms wanting more flexible SDKs than standard PayPal Checkout; the 2025-era rebrand folds that positioning more directly under the PayPal name itself, though the underlying product and its 2.89% + $0.29 standard rate continue.
What is the difference between a card processor and GoCardless?
A card processor like Stripe or Adyen moves money by charging a customer's debit or credit card at the moment of a sale. GoCardless instead collects payment by pulling funds directly from a customer's bank account through Direct Debit or a similar bank-to-bank rail, which is slower to settle but has a lower decline rate for recurring charges like subscriptions and invoices, since a bank-debit mandate does not expire the way a card does. Most businesses using GoCardless run it alongside a card processor rather than replacing one with it.
What does 'merchant of record' mean, and why does Paddle charge more?
A merchant of record is the legal entity that actually sells a product to the end customer and is responsible for collecting and remitting sales tax and VAT across every jurisdiction a customer might be in, rather than leaving that compliance burden to the seller. Paddle operates this way for software and SaaS sellers, which is why its 5% plus $0.50 per-transaction rate runs noticeably higher than Stripe's or Adyen's: the higher rate includes tax compliance, fraud protection and chargeback liability that a standard gateway leaves entirely to the merchant.
Is Klarna a payment processor or something else?
Klarna is primarily a buy-now-pay-later and checkout-financing provider, letting a customer split a purchase into installments rather than paying the full card amount upfront, and it also runs a broader checkout suite around that core product. It completed its IPO on the NYSE in September 2025, moving from a private Swedish fintech to a publicly traded company. Most merchants add Klarna as one checkout option alongside an existing card processor rather than replacing card acceptance with it entirely.
Why is Authorize.net's pricing different from the rest of this list?
It is one of the oldest payment gateways still operating, dating to 1996, and it retains a genuine standing monthly gateway fee, $25 a month across all its plans, on top of per-transaction pricing, a structure most competitors in this category dropped years ago in favor of pure per-transaction pricing. Owned by Visa since its 2010 acquisition of parent company CyberSource, it is still commonly used as a gateway layered on top of a separately obtained merchant account rather than as a single all-in-one processor the way Stripe or Square are typically used.
Can a very small or new business actually get approved by these providers?
Stripe, Mollie, PayPal Business, Square and Razorpay (for India-based businesses) all offer instant or near-instant self-serve approval for a standard small business, with underwriting happening in the background rather than blocking a first transaction. Adyen, Checkout.com, Worldpay and BlueSnap all assume a sales-assisted onboarding process from the start and are built for a business already processing meaningful volume, which makes them a slower, less appropriate first choice for a brand-new or very small merchant.
How often is this payment processing ranking updated?
Whenever a fact underneath it changes: an ownership change like Global Payments completing its acquisition of Worldpay, a status change like Klarna's 2025 IPO, or a rebrand like Braintree becoming PayPal Enterprise Payments. The published and last-reviewed dates at the top of this guide reflect an actual check of each vendor's current pricing and ownership, not a date moved forward without a re-check, which matters in a category where two of the largest names here changed ownership structure within the last year.
