Merchant services let your business accept credit card, debit, and digital payments from customers. The best merchant services balance low transaction fees with reliable hardware and integrated software. With over 80% of consumers paying by card or digital wallet in 2026, having the right payment processing setup is essential for any business that accepts payments in person or online.
Best Overall: Stripe
Stripe charges 2.9% plus $0.30 for online transactions with custom pricing available for high-volume businesses. It is developer-friendly, supports global payments in over 135 currencies, and offers comprehensive APIs. For online-first businesses, Stripe is the best merchant service available in 2026.
Best for Small Business: Square
Square charges 2.6% plus $0.10 for in-person transactions and 2.9% plus $0.30 online. They offer a free card reader and an integrated POS system, website builder, and inventory management tools. Square is the best merchant service for small businesses that need an all-in-one solution for both in-person and online sales.
Best for Retail: Clover
Clover charges 2.6% plus $0.10 for in-person transactions with robust POS hardware, inventory management, and employee management features. Their countertop terminals and full POS systems are designed for retail and restaurant environments. Clover is the best merchant service for brick-and-mortar businesses with complex operational needs.
Best Interchange Plus: Helcim
Helcim offers interchange-plus pricing at interchange plus 0.30-0.60% plus $0.08-0.20 per transaction with no long-term contract. This transparent pricing model can save high-volume merchants 20-40% compared to flat-rate pricing. Helcim is the best merchant service for businesses that process significant transaction volume and want to minimize fees.
Best for eCommerce: Shopify Payments
Shopify Payments charges 2.9% plus $0.30 and integrates seamlessly with the Shopify platform. Using Shopify Payments eliminates additional transaction fees that Shopify charges for third-party payment gateways. For Shopify store owners, it is the best merchant service thanks to the tight integration and simplified fee structure.
Comparison Table
| Provider | Pricing Model | In-Person Fee | Online Fee | Hardware Cost | Best For |
|---|---|---|---|---|---|
| Stripe | Flat rate | — | 2.9% + $0.30 | None | Online businesses |
| Square | Flat rate | 2.6% + $0.10 | 2.9% + $0.30 | Free reader | Small business |
| Clover | Flat rate | 2.6% + $0.10 | — | $100-$2,000 | Retail / restaurant |
| Helcim | Interchange plus | IC + 0.30% + $0.08 | IC + 0.50% + $0.20 | Varies | High volume |
| Shopify Payments | Flat rate | — | 2.9% + $0.30 | Shopify hardware | Shopify stores |
Pricing Models Explained
Flat rate pricing is simple and predictable at 2.5-3.5% per transaction. Interchange-plus pricing passes through the wholesale interchange rate plus a small markup, typically saving 20-40% for high-volume merchants. Tiered pricing bundles transactions into qualifying, mid-qualifying, and non-qualifying buckets and is the most confusing structure. The best merchant services use either flat rate or interchange-plus pricing.
Hidden Fees to Watch For
Watch out for PCI compliance fees ($10-30 per month), monthly minimum fees, statement fees, batch fees, and chargeback fees ($15-30 each). The best merchant services are transparent about their full fee schedule and do not use auto-renewal contract terms that lock you in.
Disclaimer: Rates and terms are subject to change. This content is for informational purposes only and does not constitute financial advice. Always verify current rates directly with the financial institution. Aurwallet is not affiliated with any of the products mentioned.