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9 Best Payment Gateways
By Jodie Price | Updated August 6, 2025
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Helcim
Rated “Best for High-Volume Sellers,” Helcim offers a competitive starting transaction fee of interchange plus 1.58% plus 6 cents for businesses processing over $1 million monthly. While it does not provide POS software integration, it uses a transparent interchange-plus payment structure, making it an appealing choice for merchants seeking predictable and scalable pricing.
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PayPal
Recognized as the “Best All-in-One Payment Solution,” PayPal offers a starting transaction fee of 2.29% plus 9 cents, making it accessible for a wide range of merchants. It supports POS software integration and uses an interchange plus plus pricing structure, combining transparency with flexibility. This makes PayPal a versatile option for businesses needing both online and in-person payment capabilities.
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Shopify
Named the “Best for Online Stores,” Shopify charges a starting transaction fee of $39 plus 2.6% and 10 cents per transaction. It includes POS software integration for seamless in-person and online selling but does not use an interchange plus pricing structure. This makes Shopify ideal for e-commerce businesses looking for a unified platform with built-in payment tools.
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Square
Named the Best for Startups, Square offers a starting transaction fee of 2.6% plus 10 cents for in-person sales. It includes POS software integration, making it easy for businesses to manage sales both online and offline. While it does not use an interchange plus pricing structure, Square remains a simple, accessible solution for new businesses looking for fast setup and straightforward fees.
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Payline
Named the Best Single-Price Payment Solution, Payline offers a straightforward starting transaction fee of 0.10% and 5 cents, making it ideal for businesses that value simplicity and transparency. It supports POS software integration, allowing for smooth in-store operations. Although it does not follow an interchange plus pricing model, its flat-rate structure appeals to businesses wanting predictable costs.
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Clover
Recognized as the Best for Bundling Payments With POS, Clover offers a starting transaction fee of $14.95 plus 2.6% plus 10 cents, making it suitable for businesses that want an all-in-one payment and point-of-sale solution. It features POS software integration, streamlining in-store transactions and business operations. However, it does not use an interchange plus payment structure, which may affect cost transparency for some users.
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Authorize.net
Named the Best for Fraud Prevention, Authorize.net charges a starting transaction fee of $25 plus 20 cents per transaction. It offers POS software integration via API and Webhooks, allowing businesses to create secure, customized payment systems. However, it does not support an interchange plus payment structure, which could limit pricing flexibility.
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Stripe
Named the Best for E-Commerce, Stripe charges a starting transaction fee of 2.9% plus 30 cents per transaction. While it does not offer POS software integration, it stands out by supporting an interchange plus payment structure, making it a strong choice for online businesses seeking transparent and scalable pricing.
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Stax
Recognized as the Best for SaaS Payment Integration, Stax has a starting transaction fee of $99 and supports POS software integration via API only, making it ideal for developers and SaaS platforms seeking customization. However, it does not offer an interchange plus payment structure, which may limit flexibility for some users.
Frequently Asked Questions
What are the features to look for in a top payment gateway in 2025?
Look for multi-currency support if your business sells worldwide. Strong fraud detection tools, including advanced fraud detection suites, help prevent chargebacks and reduce risk.
APIs and clear integration options with digital wallets and popular e-commerce platforms are important. Fast payout times and transparent payment processing fees also matter for managing your cash flow.
How do payment gateways handle international transactions more effectively today?
Most gateways now support multiple currencies and real-time currency conversion. They use global networks to speed up processing and offer built-in tools for cross-border fraud protection. This means you can accept credit card payments from international customers more easily, with predictable fees and improved reliability.
What are the benefits of using the most popular payment gateways in the USA?
Popular payment gateways offer robust security features like PCI compliance and end-to-end encryption, helping protect your business from fraud. Many support fast payouts, chargeback protection, and a wide range of payment methods, including credit cards, digital wallets, and mobile payments. Subscription and recurring billing options are also commonly available for added flexibility.
How do current leading payment gateways integrate with various e-commerce platforms?
Most leading gateways offer direct plugins or API integration for platforms like Shopify, WooCommerce, Magento, and BigCommerce. This makes the setup simple.
You can also connect your payment solution to your POS system for in-store payments. Many gateways support automation features for subscription management and recurring payments.
Can you provide examples of secure and efficient payment gateways for small businesses?
Stripe and Square are both known for their strong security, simple setup, and transparent fees. PayPal offers wide acceptance and built-in fraud prevention.
Other options like Authorize.net and Braintree support multi-currency and recurring billing, making them strong choices for small or growing businesses. Each of these payment gateways includes tools for fraud detection and easy integration with major e-commerce websites.