6 Best Omnichannel & Online Payment Processing Software in 2026

Customers can pay in more ways than ever, from online checkout and invoices to phone, mobile, and in-person payments. The challenge is keeping all those payment channels connected without creating more behind-the-scenes work.

This article compares four of the best omnichannel and online payment processing software options in 2026: EBizCharge, Stripe, Square, Adyen, Stax, and Clover.

What Is Omnichannel Payment Processing?

Omnichannel payment processing means accepting and managing payments across multiple channels while connecting the customer experience and the payment data behind it.

• Common channels:
• Ecommerce checkout and shopping carts
• Electronic invoices
• Phone payments (virtual terminal)
• Mobile payments
• In-person payments (EMV terminals)
• Payment links
• Customer payment portals
• Recurring payments

Omnichannel vs. Multichannel

A multichannel business accepts payments in several places, while an omnichannel business connects those payment channels. For example, a company may accept payments online, by phone, and in person, but still manually move payment information between systems. In that case, the payment experience is multichannel, not omnichannel.

Payment Solutions for Omnichannel & Online Businesses Compared Side-by-Side

= Partial, varies, or needs partner/custom work

6 Best Omnichannel & Online Payment Processing Software

1. EBizCharge

Best for: Businesses that want omnichannel payment processing connected with their accounting or ERP workflows.

Key Features:

• Payments accepted: Credit/debit cards and ACH/eCheck online, on mobile, by phone, and in person
• Card-present and phone payments: Virtual terminal and EMV payment devices
• Mobile payments: Mobile app for quick payments, card scanning, invoice and sales order payments, and text or email receipts
• Paperless payments: Email pay, payment links, customer payment portal, recurring payments, and autopay
• Shopping cart integrations: Adobe Commerce (Magento), WooCommerce, BigCommerce, nopCommerce, Odoo eCommerce, Miva, OpenCart, and more
• Accounting and ERP integrations: Business Central, NetSuite, Acumatica, Sage, QuickBooks, SAP Business One, Epicor Kinetic, Odoo, and more
• Security: PCI compliance, encryption, tokenization, and AVS/CVV

2. Stripe

Stripe screen via stripe.com

Best for: Online-first businesses that want flexible, customizable digital payment experiences.

Key Features:

• Online and ecommerce payments
• Payment links
• Recurring/subscription payments
• Digital wallets
• In-person payments through Stripe Terminal
• Developer APIs
• 3D Secure
• Fraud prevention

3. Square

Square screen via squareup.com

Best for: Small and midsize businesses that accept both in-person and online payments.

Key Features:

• POS payments
• Online payments and online store
• Card readers and terminals
• Mobile payments
• Virtual terminal
• Invoices
• Ecommerce capabilities

4. Adyen

Adyen screen via docs.adyen.com

Best for: Large and global businesses managing online and in-person commerce.

Key Features:

• Online, in-person, and mobile payments
• Unified Commerce
• Global payment methods
• Cross-channel payment data
• 3D Secure
• Enterprise payment infrastructure

5. Stax Payments

Stax screen via G2

Best for: Businesses that want to manage online, in-person, and mobile payments through one platform.

Key Features:

• Credit/debit card and ACH payments
• Online and ecommerce payments
• In-person payments with smart terminals and mobile card readers
• Mobile payments through the Stax app
• Virtual terminal for phone and manually entered payments
• Digital invoicing and automated payment reminders
• Payment links and hosted payment pages
• Recurring billing and scheduled payments
• Centralized payment reporting and analytics
• Integrations and developer APIs

6. Clover

Clover screen via docs.clover.com

Best for: Retail, restaurant, and service businesses that want POS-first payment processing across in-person and online channels.

Key features:

• POS payments
• Card readers and terminals
• Mobile payments
• Online payments
• Ecommerce
• Virtual Terminal
• Email invoicing
• Phone payments
• Unified dashboard

Why Omnichannel Payments Look Different for Every Business

The right mix of payment channels and integrations depends on how a business operates and how its customers prefer to pay.

B2B and invoice-based businesses: invoice payments, ACH/eCheck, payment links, customer portals, phone payments, ERP integration, and automatic posting and reconciliation

Retail: POS, EMV terminals, mobile payments, ecommerce, online ordering, and payment data connected across online and in-person channels

Ecommerce and subscription businesses: online checkout, shopping cart integrations, digital wallets, recurring billing, saved payment methods, and online payment security

Larger businesses with multiple systems or locations: system integrations, centralized payment information, cross-channel reporting, payment synchronization, and reconciliation

Connect Your Payment Channels With EBizCharge

Customers may pay through different channels, but businesses should not have to manage every payment through a completely separate process. EBizCharge gives customers multiple ways to pay while connecting payment information with accounting and ERP workflows to reduce repetitive payment matching, posting, and reconciliation.

Your customers should have flexibility in how they pay without creating more work for your team. See how EBizCharge can help connect your payment channels with the systems your business already uses.

Frequently Asked Questions

What is the difference between omnichannel and online payment processing?

Online payment processing handles digital transactions, while omnichannel payment processing connects online, in-person, mobile, phone, and invoice payments into one system.

What is paperless payment processing?

Paperless payment processing allows businesses to accept electronic payments through credit cards, ACH/eCheck, payment links, digital invoices, customer portals, and recurring payments.

What is shopping cart payment processing?

Shopping cart payment processing connects an ecommerce checkout with a payment processor to securely accept online payments and track transactions.

What is a 3DS payment processing service?

A 3DS payment processing service uses 3D Secure authentication to help verify cardholders and reduce fraud during eligible online transactions.

Can omnichannel payment processing integrate with accounting or ERP software?

Yes. Many solutions integrate with accounting and ERP systems to automatically sync payments, update invoices, and simplify reconciliation.

What payment methods should omnichannel payment software support?

Look for support for credit and debit cards, ACH/eCheck, online and in-person payments, mobile payments, payment links, and recurring billing.

How can omnichannel payment processing reduce manual reconciliation?

Integrated omnichannel payments can automatically match transactions to invoices and update accounting records, reducing manual data entry and errors.