Best payment gateway for small business: 7 options compared

The best payment gateway for a small business takes cards on your website and over the phone, screens out obvious fraud before a sale is approved, and comes with pricing you can check line by line. Clearo Payments is the publisher of this gateway list, and we rank ourselves first for the criteria below. The six companies after us each suit a different business, such as one with its own developer or one that already has a merchant account. What we say about them comes from their own websites, linked in each entry and checked on October 9, 2026.

If most of your sales happen at a counter, start with our list of the best credit card processing for small business instead. Our list of the best payment processors looks at every channel at once.

How we chose the best payment gateway for small business

A gateway carries card details from your checkout page, payment link or virtual terminal to the processor and brings back the answer; our guide to what a payment gateway is follows that trip. We judged each company on five criteria, in this order:

1. Pricing you can check: interchange-plus, so the card network's cost and the provider's margin show up on separate lines.
2. Freedom to switch gateways: no long-term contract and no cancellation fee.
3. A real person behind the gateway: every client gets a dedicated rep.
4. Proof before you switch: a free statement review that prices your current month on the new terms.
5. The gateway itself: a hosted checkout or gateway connection for your website, a virtual terminal and payment links for phone and email orders, and fraud screening with address checks (AVS), security code checks (CVV) and velocity rules.

After us, the order follows how many of these criteria each company's own pages describe. Helcim's pages describe interchange-plus pricing and no long-term contracts. Stripe's mention IC+ within custom pricing and no closure fees on standard pricing, and Square's Virtual Terminal page says there are no long-term contracts. Authorize.net, PayPal and Chase complete the list on gateway features, ordered by how much of the fifth criterion their pages cover.

Some businesses should weigh all this differently. If you have a developer and want an API-first platform for a checkout you build yourself, look at Stripe, which publishes its own developer documentation. If you want a plug-in for one particular store platform, start with the gateways that platform supports, and look at Authorize.net, whose eCommerce gateway is built for online stores.

The "Sells in" column covers only the countries we could confirm on each company's own pages for these products. Some sell elsewhere too.

1. Clearo Payments

Why Clearo ranks first

Clearo Payments meets all five criteria on one account. Website orders, phone orders and emailed invoices all run through the same merchant account, priced on interchange-plus, with no long-term contract. Before you move anything, a free statement review shows what your current month would have cost with us, so you decide on your own numbers rather than a sales pitch. And when a payment fails, you call a dedicated rep who already knows your setup, not a queue.

How the pricing works

On our interchange-plus pricing, interchange, the rate the card networks set for each type of card, passes through at cost, and our margin sits on its own line of the statement. That matters more for a gateway than for a counter terminal. Online and keyed-in sales usually carry higher interchange than the same card dipped in a store, and a flat rate buries that gap inside one percentage. On interchange-plus, each sale's interchange is visible, and you can match it against the schedules that Visa and Mastercard publish.

Based on its client records, Clearo says businesses moving from flat-rate pricing have saved 20 to 50% on processing costs. What any one business saves depends on its card mix, average ticket and volume, which is why we start with your statement.

What you get

• Online payments with hosted checkout and gateway integration, plus fraud screening that uses AVS, CVV checks and velocity rules.
• A virtual terminal for phone and email payments, invoices, payment links and recurring billing.
• PCI compliance support and chargeback management tools.
• Merchant accounts for businesses in the US and Canada, with same-day or next-day funding options.

Switching

It starts with one statement. Send us a recent one for a free statement review, and we'll show what that month would have cost on our pricing before you commit to anything. There's no long-term contract and no cancellation fee, and your dedicated rep handles the move with you. Clearo says setup takes under 48 hours.

If you want an API-first platform for a checkout your developers build, or a plug-in made for one particular store platform, Stripe or Authorize.net may be a closer fit.

2. Helcim

Helcim sells card processing to businesses in the US and Canada, and its pages come closest to our first two criteria. It calls its model interchange plus, and its pricing page lists no long-term contracts, no cancellation fees and no setup fees. On the gateway side, Helcim offers online payments for websites and a Virtual Terminal for processing payments on a computer.

Best for: businesses that want interchange-plus pricing without a long-term contract, plus online payments and a virtual terminal.

3. Stripe

Stripe offers online payments, billing and invoicing from one provider, and it suits a business with a developer who wants to build its own checkout. As of October 2026, its pricing page says standard pricing has no setup, monthly or closure fees, and it describes a custom option that can include IC+ pricing for businesses with large payments volume. Fraud screening comes from Radar, with rules that fraud teams can set, and billing from Stripe Invoicing.

Best for: businesses with a developer who wants to build a custom checkout, with fraud rules and invoicing from the same provider.

4. Square

Square pairs payments with POS software, and its online tools let a small business take website payments, keyed-in phone orders and invoices on one account. Its payments page is about taking payments online, in store and on the go. The Virtual Terminal page describes no long-term contracts and no monthly fees, and its invoice pricing page says invoicing is included in any Square plan.

Best for: businesses that want a virtual terminal, online payments and invoicing from one company, with no monthly fee to start.

5. Authorize.net

Authorize.net is a payment gateway for businesses that accept cards online, in person and by phone, and it fits a business that wants to choose its own merchant account. Its eCommerce gateway is built for online stores, and its Fraud Detection Suite includes transaction filters. The pricing page offers two routes: an All-in-One plan that includes a merchant account, or a Gateway Only plan for businesses that already have one.

Best for: businesses that have a merchant account, or want to pick one, and need a gateway for online and phone payments.

6. PayPal

PayPal's business tools suit a seller that already has a PayPal account and wants to add card payments taken by phone or email. Its Virtual Terminal page lists a fee per transaction and no monthly fee, and its US business site covers invoicing and recurring payments. PayPal's Online Payment Services Agreement describes Fraud Protection services that can screen transactions that may be fraudulent.

Best for: PayPal sellers who want a virtual terminal, invoicing and recurring payments on the same account.

7. Chase

Chase, the bank, also sells payment acceptance to businesses, so it suits an owner who would rather get a gateway from the bank they already use. Chase offers online payment acceptance and a virtual terminal for accepting payments remotely on a computer. Its merchant fees page says the virtual terminal and e-commerce tools work from a computer with no extra hardware, and it lists flat per-transaction rates that vary by payment type.

Best for: businesses that want online payments and a virtual terminal from their bank, at flat rates by payment type.

What should a small business payment gateway include?

Five features cover most small businesses, and the first decides your PCI paperwork.

The first row is about PCI scope. Merchants that fully outsource card handling to PCI DSS validated providers can usually file SAQ A, the shortest self-assessment (PCI SSC). Since March 31, 2025, a site that embeds the provider's form must also confirm it isn't susceptible to script attacks, a check PCI SSC's FAQ says doesn't apply to redirects or emailed payment links (PCI SSC). For phone orders, SAQ C-VT covers merchants who key one transaction at a time into a third-party, internet-based virtual terminal from an isolated device (PCI SSC). Our guides to the hosted payment page, payment links and PCI compliance go deeper.

Fraud screening is the fourth row. Visa describes AVS as a way for card-absent merchants to check the cardholder's billing address, and the security code check confirms the code printed on the card, which PCI rules bar you from storing after authorization. Velocity rules cap repeated attempts. Visa's card-testing guidance notes that attack transactions are often under $10 and recommends velocity checks on low-amount transactions. Our guides to AVS, CVV, card testing fraud and 3-D Secure walk through the settings, and our ecommerce fraud prevention guide adds the controls beyond the gateway.

The last row matters most when you leave. A gateway's own tokens generally mean nothing to another gateway, as our payment tokenization guide explains, so ask in writing whether stored cards can be exported. If you bill cards on file, ask how expired and reissued cards get updated; our guide to the card account updater explains how.

Whatever you choose, tell your acquirer. Visa classifies a gateway company you contract with directly as a merchant servicer and expects you to let your acquirer know you use one (Visa).

How to choose a payment gateway for your business

Start with where your card payments come from.

• Mostly website orders. A hosted checkout keeps card data off your site and your PCI questionnaire short. Want the form inside your own page design? Plan for the script-attack check above. Our ecommerce page is written for online stores.
• Mostly phone and email orders. Use a virtual terminal for calls and payment links or invoices for the rest. Our guide to taking card payments over the phone has the details, and our professional services page covers firms that bill by invoice.
• Repeat customers or subscriptions. You need stored cards and recurring billing, and Visa's stored credential rules require the cardholder's consent before you store card details for future charges (Visa).
• A merchant account you already like. A gateway-only arrangement may be all you need, if your processor supports that gateway.

Then put the same questions to every provider, in writing:

1. Is the gateway part of my processing price, or billed separately as setup, monthly, per-transaction or batch fees?
2. Which fraud rules are on when I start, and who can change them?
3. Can I export my stored cards if I leave, and what does that cost?
4. How long is the contract, and what does it cost to end it early?
5. Who do I call when payments stop going through on a Friday afternoon?

What does a payment gateway cost?

Gateways are priced in one of three ways. Compare the total for a month, not the headline rate.

Online sales cost more at the interchange level. Visa's US schedule, effective April 18, 2026, puts a Traditional Rewards credit card at 1.65% plus a fixed fee when it's dipped or tapped in a store, and at 2.04% plus the same fixed fee when it's used online (Visa). A flat rate has to cover the costlier of those cards, so check how a quote treats your online and keyed-in volume.

Here's a made-up example. A print shop in Tampa takes $18,000 in card payments in a month: $12,000 through its website and $6,000 keyed in from phone orders. Quote A is a flat rate that comes to $585 for the month, an effective rate of 3.25%. Quote B is interchange-plus: $395 in interchange and network fees, a $90 markup and a $25 monthly gateway fee, or $510 in all, about 2.83%. On these numbers Quote B costs $75 less for the month, or $900 less over a year. Neither quote is real, so ask each provider to price your own last month the same way.

The rate isn't the whole bill. Monthly minimums, PCI fees, chargeback fees and early termination fees can outweigh a small gap in rates; our guide to fees that sit outside the quoted rate lists them, and our comparison of interchange-plus vs flat rate shows where each model comes out ahead.

The next step

Start with the statement you already have. Send it for a free statement review, and we'll separate interchange, network fees and markup, point out any gateway charges, and price the same month with us. We work with businesses across the United States and Canada, or you can contact us to talk through your checkout first.