Best payment processors in 2026: 10 options compared

Last updated November 6, 2026. Rates are each provider’s published US price for domestic online card payments, checked in November 2026. Negotiated quotes, premium cards and international cards will differ.

There is no single best payment processor in 2026. There is a best processor for your platform, your monthly volume and your risk category, and choosing on headline rate alone is how most merchants end up overpaying or, worse, frozen. This guide compares ten options against the same criteria and says plainly who each one is built for.

The short answer: the best payment processor by business type

• Low-risk Shopify store: Shopify Payments, because it is the only option that avoids Shopify’s third-party transaction fee.
• SaaS or developer-led business: Stripe.
• Enterprise selling in many countries: Adyen or Checkout.com.
• Selling across Europe with local payment methods: SysPay.
• Extra conversion from a trusted wallet: Apple Pay and Google Pay, added as a second payment method.
• Selling both in person and online: Square.
• Growing SMB that wants interchange-plus without a monthly fee: Helcim.
• You already have a merchant account and need a gateway: NMI.
• High-risk category (nutra, supplements, CBD and similar): a provider that underwrites dedicated merchant accounts, like Resub for high-risk Shopify stores that want MIDs and a CRM under one rate.

How we evaluated each payment processor

Every provider was judged on the same six criteria:

• Published pricing and pricing model. Flat-rate pricing (one percentage plus a fixed fee) is easy to forecast. Interchange-plus passes through the card networks’ actual cost and adds a visible markup, which usually gets cheaper as volume grows.
• Account model. Aggregators, also called payment facilitators, onboard you instantly under their own master merchant relationship. A dedicated merchant account, or MID, is underwritten in your business’s name. The difference matters most when something goes wrong.
• Business fit. Platform, volume and the countries you sell into.
• Risk tolerance and stability. Whether your category is accepted, restricted or prohibited, and how the provider reacts to a dispute spike.
• Cash flow. Payout timing and reserve policy.
• Tools. Subscriptions, fraud screening, dispute handling and reporting.

Payment processors compared: 2026 published rates

Provider	Best for	Pricing model	Published US online card rate	Monthly fee
Stripe	Developers, SaaS, custom checkouts	Flat-rate (custom at volume)	2.9% + 30¢	$0
Shopify Payments	Low-risk Shopify stores	Flat-rate by Shopify plan	2.9% / 2.7% / 2.5% + 30¢ (Basic / Grow / Advanced)	Part of your Shopify plan
Adyen	Enterprise, multi-country	Interchange++	$0.13 + interchange++ + 0.60% (Visa, Mastercard)	None published
Checkout.com	Global enterprise	Custom (flat-rate or interchange++)	Quote only	Quote only
SysPay	Selling across Europe	Custom, several acquirers under one contract	Quote only	Quote only
Apple Pay / Google Pay	One-tap checkout on top of your processor	Digital wallet (no processing of its own)	No wallet fee: your processor’s normal card rate applies	$0
Square	In-person plus online	Flat-rate by plan	3.3% + 30¢ (Free); 2.9% + 30¢ (Plus, Premium)	$0 / $49 / $149 per location
Helcim	Growing SMBs (US, Canada)	Interchange-plus	Interchange + 0.50% + 25¢ at entry volume, lower as volume grows	$0
NMI	Gateway for one or more existing merchant accounts	Gateway, sold through resellers	Set by your reseller (gateway fees on top of processing)	Set by your reseller
Resub	High-risk Shopify stores	One rate on monthly volume	2.75% down to 1.25% of monthly volume	$0

One cost the table can’t show: Shopify adds a third-party transaction fee of 2% (Basic), 1% (Grow), 0.6% (Advanced) or 0.2% (Plus) to every order processed through a provider other than Shopify Payments. Factor it in before comparing any provider for a Shopify store.

The best payment processors in 2026, reviewed

1. Stripe: best for SaaS and developer-led businesses

Best for: SaaS companies, marketplaces and developer-led businesses with engineers on the team.

Stripe remains the default for businesses that build their own payment flows. Its APIs, documentation and add-ons (Billing for subscriptions, Radar for fraud screening, Connect for marketplaces) are the benchmark the rest of the industry is measured against.

Pricing: 2.9% + 30¢ per successful domestic online card payment, with no setup or monthly fee. International cards add 1.5%, currency conversion adds 1%, and each dispute costs $15. Custom pricing is available at higher volume.

Watch out for: Stripe works as an aggregator. Onboarding is instant because your business sits under Stripe’s own merchant relationships rather than an account underwritten in your name. Its published Prohibited and Restricted Businesses list prohibits pseudo-pharmaceuticals and nutraceuticals that are unsafe or make harmful claims, and treats CBD as restricted. If you sell in or near those categories, read what triggers a Stripe account review before you integrate.

2. Shopify Payments: best for low-risk Shopify stores

Best for: Shopify merchants in mainstream product categories.

If your store runs on Shopify and your products are low-risk, Shopify Payments is hard to beat on total cost, because it is the only option that avoids Shopify’s third-party transaction fee. Setup takes minutes, and payouts, disputes and reporting live inside the Shopify admin.

Pricing: 2.9% + 30¢ on Basic, 2.7% + 30¢ on Grow and 2.5% + 30¢ on Advanced for standard US online cards, with lower rates on Shopify Plus. Premium and international cards cost more.

Watch out for: Shopify Payments is also an aggregator model with its own eligibility rules. If your store is moved off it, you pay Shopify’s third-party fee on top of whatever your next provider charges: on Basic with a 2.9% + 30¢ processor, that’s an effective 4.9% + 30¢. Merchants in regulated categories should plan their Shopify Payments alternative before they need one.

3. Adyen: best for enterprise and multi-country commerce

Best for: large merchants selling online and in store across several countries.

Adyen runs acquiring, processing and risk on one global platform, so a single integration covers cards, wallets and local payment methods in many markets. Its interchange++ pricing shows exactly what the card networks charge and what Adyen adds on top.

Pricing: a fixed $0.13 processing fee per transaction plus a payment-method fee. For Visa and Mastercard, that fee is interchange++ plus 0.60%. No setup or monthly fee is published.

Watch out for: onboarding is sales-led and the platform is designed for scale. Smaller merchants will usually find simpler, faster options elsewhere on this list.

4. Checkout.com: best for global enterprises focused on acceptance rates

Best for: high-volume online businesses where a fraction of a point of authorization rate is worth real money.

Checkout.com competes with Adyen at the top of the market, with direct acquiring in many countries and tooling aimed at lifting approval rates and cutting false declines.

Pricing: not published. Quotes are custom, on either a flat-rate or an interchange++ basis.

Watch out for: it is built for mid-market and enterprise volume, so small stores are rarely a fit, and you can’t compare cost without going through a sales process.

5. SysPay: best for selling across Europe

Best for: e-commerce merchants and platforms selling across Europe that want local payment methods and several acquirers behind one contract.

SysPay is a European payment institution based in Malta and licensed by the Malta Financial Services Authority (MFSA) since 2011. Instead of tying you to a single acquirer, it connects several, including Checkout.com and Shift4, through one integration, with smart routing and failover between them. It accepts Visa, Mastercard and Amex alongside Apple Pay, Google Pay, iDEAL and Pay by Bank over SEPA Instant, supports 21 currencies and 24 payment methods, is PCI DSS Level 1 certified, and plugs into Shopify, WooCommerce and Magento.

Pricing: not published. Quotes depend on your business model, volume and risk level.

Watch out for: SysPay’s roots are in hospitality and travel, so ask for e-commerce references in your vertical, and confirm that your company and the countries you sell into are eligible before you plan around it.

6. Apple Pay and Google Pay: best for one-tap checkout conversion

Best for: any online store with mobile traffic that wants a faster, trusted way to pay, added as a second payment method next to cards.

Apple Pay and Google Pay are digital wallets rather than processors: they run on top of the processor you already use. The shopper pays with a card saved on their phone or in their browser, confirms with Face ID, a fingerprint or a device PIN, and skips typing card numbers and addresses. On mobile, where entering a 16-digit card number is the slowest part of checkout, that is a real advantage. Apple Pay also sends a device-specific token instead of the real card number, and Google Pay supports tokenized cards too.

Pricing: neither Apple nor Google charges merchants to accept their wallets. Each payment is processed at your processor’s normal rate for the underlying card, so a wallet payment on Stripe costs the same 2.9% + 30¢ as a typed card. That is the key difference with PayPal Checkout, which costs 3.49% + 49¢ per PayPal, Venmo or Pay Later payment.

Watch out for: the buttons only appear to shoppers who have set up a wallet on a compatible device or browser, your processor has to support them, and Apple Pay on the web requires registering your domain through your processor. A wallet also doesn’t change your processor’s risk policy: if your processing account is frozen, Apple Pay and Google Pay stop with it. If you’re moving away from PayPal, see our PayPal alternative for high-risk e-commerce.

7. Square: best for businesses that sell in person and online

Best for: retailers, restaurants and service businesses with a physical location and an online store.

Square’s strength is the full stack: POS hardware, software and payments in one account. If most of your revenue is taken in person, it is one of the simplest setups available.

Pricing: on the Free plan, in-person payments cost 2.6% + 15¢ and online payments 3.3% + 30¢. Square Plus ($49 per month per location) and Premium ($149) bring online payments down to 2.9% + 30¢, and in-person payments to 2.5% and 2.4% + 15¢ respectively.

Watch out for: Square raised its Free-plan online rate in January 2026, so a pure e-commerce brand on the Free plan now pays one of the highest flat rates on this list.

8. Helcim: best for growing SMBs that want interchange-plus

Best for: US and Canadian small and mid-sized businesses that have outgrown flat-rate pricing.

Helcim offers interchange-plus pricing without the monthly subscription that usually comes with it, and lowers its markup automatically as your volume grows.

Pricing: interchange plus a published markup. Online and keyed payments start at interchange + 0.50% + 25¢ at the entry volume tier and fall from there. No monthly fee and no long-term contract.

Watch out for: it is limited to the US and Canada, and like every mainstream processor it has its own list of businesses it won’t support, so check it if you sell in a regulated category.

9. NMI: best gateway for an existing merchant account

Best for: merchants who already have one or more merchant accounts and want a gateway they can keep if they add or switch processors.

NMI is a processor-agnostic gateway: it connects to more than 150 processors and more than 125 shopping carts, so your checkout integration doesn’t have to change when your acquiring relationship does. It includes a Customer Vault for tokenized card storage and recurring billing, and many payment providers white-label it under their own brand, so you may already be using it under another name.

Pricing: not published. NMI is sold mainly through resellers, ISOs and payment partners, who set the monthly gateway fee, the per-transaction fee and add-on costs on top of your processing.

Watch out for: because pricing sits with the reseller, compare complete quotes (gateway, vault, fraud tools) rather than headline fees, and ask what it costs to export your stored cards if you ever move. A gateway also doesn’t replace a merchant account: if the distinction is fuzzy, read payment gateway vs merchant account.

10. Resub: best for high-risk Shopify stores that want MIDs and a CRM in one place

Best for: US Shopify brands in nutra, supplements, beauty, health and CBD, typically processing $100K to $2M per month.

Disclosure: Resub publishes this guide.

Resub opens dedicated high-risk merchant accounts (MIDs) in the merchant’s own name and runs them through Resub CRM, its own billing engine. Volume is spread across several MIDs with smart routing, declines cascade to the next MID, and soft declines are retried. Each merchant gets a dedicated PCI-compliant card vault: the tokens belong to the merchant and stay portable across gateways and MIDs, so one account closure doesn’t take your customers’ saved cards with it. Subscriptions and rebills, chargeback alerts, Compelling Evidence 3.0 and payouts in as little as 24 hours on the fastest MIDs are part of the same platform.

Pricing: one published rate on monthly volume: 2.75% up to $750K, 2.25% from $750K to $1.5M, 1.75% from $1.5M to $3M and 1.25% above $3M. The rate includes Resub CRM and MID onboarding, with no setup fee and no fixed monthly fee.

Watch out for: Resub is built for high-risk Shopify stores. It isn’t the right fit if you need a standalone funnel builder or 200+ international gateways, or want to code your own billing logic through an API. Approval still depends on underwriting.

Why high-risk merchants need a different shortlist

Most providers above are excellent for the businesses they’re built for. For nutra, supplement, CBD and subscription brands, the problem is structural rather than personal.

Aggregators such as Stripe, Shopify Payments, PayPal and Square onboard you under their own master merchant relationship. That is what makes signup instant, but it also means the provider carries your risk in its own portfolio. Visa’s monitoring rules raise the stakes: since April 1, 2026, a merchant in the US, Canada, Europe or Asia-Pacific is classed as excessive under the Visa Acquirer Monitoring Program (VAMP) once its combined fraud and dispute ratio reaches 1.5%, down from 2.2%, while acquirer portfolios are flagged from 0.5%. A provider whose whole book is measured against those lines has every reason to act fast on a category it considers risky.

A dedicated merchant account changes the equation. You are underwritten as a business, your ratios are your own, and with several MIDs a review on one account doesn’t stop your store. Our guides to dedicated MIDs vs aggregator accounts and the best high-risk payment processors in 2026 go deeper.

How to choose a payment processor in 2026

1. Check your category before you integrate

Read the provider’s prohibited and restricted businesses list against your actual products and marketing claims. Discovering a mismatch after launch is how accounts get frozen.

2. Calculate your effective rate on your real order value

Fixed fees distort headline rates. At 2.9% + 30¢, a $100 order costs 3.2% but a $20 order costs 4.4%. Run your own average order value, refund rate and card mix through each provider’s pricing.

3. Match the pricing model to your volume

Flat-rate pricing is predictable and usually wins at low volume. Interchange-plus tends to win once you process meaningful monthly volume, especially with a high share of debit cards.

4. Ask who owns the merchant account and the card tokens

If the account and the stored cards belong to your provider, leaving (or being removed) can mean re-collecting payment details from every subscriber. Ask about token portability on day one.

5. Read the payout and reserve terms

Ask how quickly funds reach your bank, whether a reserve applies and what would change it. Daily ad spend funded by weekly payouts is a cash-flow problem waiting to happen.

6. Never depend on a single processor

A backup processor, or several MIDs with routing between them, keeps you selling if one account is reviewed. Here’s why one processor is a risk.

Sources and disclosure

Published pricing and policies used in this comparison, checked November 2026: Stripe pricing, Stripe Prohibited and Restricted Businesses, Shopify pricing, Adyen pricing, SysPay, Apple Pay, Google Pay, PayPal merchant fees, Square fees, Helcim pricing and NMI. Providers change their rates; individual quotes vary, so confirm current pricing with each provider before you sign.

Disclosure: Resub, the publisher of this guide, is one of the ten options listed, and Resub works with NMI as a gateway partner. We placed Resub in the one category where it genuinely fits (high-risk Shopify stores), judged every option on the same criteria, and listed limits next to strengths.

Related reading: high-risk merchant accounts for supplement brands · dedicated high-risk merchant account providers compared