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List of the Best Payment Processing Software in 2026

Rajat Gupta
Researched and Edited by Rajat Gupta
Rajat Gupta

Researched and Edited by Rajat Gupta

Last updated: May 18, 2026 · How we review

Payment Processing Software overview

Spotsaas tracks 62 products in Payment Processing Software, ranked by SpotScore — a blend of feature coverage, verified review ratings, and value. 8 let you start on a free trial, and 17 keep a free plan you can stay on. Most buyers here are Finance managers at subscription-based service companies evaluating secure and scalable payment solutions.

62
products listed
8
offer a free trial
17
have a free plan
35
priced per subscription
89
quote on request

Editor's Summary · Payment Processing Software

Klarna dominates by volume with 154,488 ratings at 4.1/5, driven by global scale across consumer-facing checkout flows and buy-now-pay-later installment options, priced on quotation for merchant accounts. Balance draws strong satisfaction at 4.5/5 across 20,705 ratings and is particularly used by B2B marketplaces needing net terms, invoicing, and credit workflows built directly into the checkout experience. Opayo scores 4.7/5 across 4,139 ratings on a subscription model and is a consistent pick for UK-based merchants that need PCI-compliant card processing with predictable monthly costs.

Payment processing software handles the end-to-end movement of funds between buyers and sellers, covering authorization, settlement, fraud screening, and reconciliation across card, digital wallet, and ACH payment methods. Core buyers are e-commerce operators, marketplace platforms, and finance teams at mid-market companies managing multi-currency or cross-border transactions with complex settlement requirements.

Quick picks for Payment Processing Software

  • Best overallKlarna
  • Best for B2B marketplaces with net termsBalance
  • Best for UK merchants on subscription pricingOpayo

Who gets the most from Payment Processing Software

  • 1Finance managers at subscription-based service companies evaluating secure and scalable payment solutions
  • 2Payment operations leads at e-commerce platforms needing multi-channel payment acceptance and integration
  • 3Sales directors at retail businesses seeking versatile payment methods including mobile and POS terminals
How to choose Payment Processing Software

If you prioritize security and scalability, filter by products with strong encryption and high availability features. For businesses requiring multi-channel payment acceptance, sort by those supporting diverse payment types like mobile, POS, and online. When transparency is key, filter by Free Trial or publicly available pricing, though most top products use quotation-based pricing.

Showing 21-40 out of 62

Payfirma - Payment Processing Software

Payfirma

Secure, Seamless Payments for Every Business.

Best for: SMB teams · Mid-market · Enterprise

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What is Payfirma?

Payfirma's payment processing software empowers businesses of all sizes to accept payments quickly, securely and cost-effectively from anyone, anywhere. Payfirma allows you to make your business available 24/7, from virtually anywhere in the world.It is a payment processing solutions provider, ...

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Payfirma offers custom pricing plan

Sovos Taxify - New SaaS Software

Sovos Taxify

Streamline sales tax and payment processing with ease.

Best for: SMB teams · Mid-market · Enterprise

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What is Sovos Taxify?

Sovos Taxify offers an easy-to-use, cutting-edge sales tax filing system and services. This POS solution saves businesses time and hassle by enabling customers to quickly scan and order at their table with just their smartphone. Smart QR codes streamline the process, eliminating labor-intensive ...

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Free Trial·

Sovos Taxify offers custom pricing plan

Heartland Payment Processing - Payment Processing Software

Heartland Payment Processing

Efficient payment processing for your business.

Best for: SMB teams · Mid-market

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What is Heartland Payment Processing?

Heartland Payment Processing software was designed with convenience in mind. A "point of sale payment processing" system, it offers the ability to run a business without having to purchase bulky expensive equipment or hire a pricey staff. The software's date and time stamp can record customer ...

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Heartland Payment Processing offers custom pricing plan

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CertifID - New SaaS Software

CertifID

Secure wire transfers made simple.

Best for: SMB teams · Mid-market · Enterprise

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What is CertifID?

CertifID makes wire transfers secure and simple. It utilizes digital identity and device verification systems to shield title companies, law offices, lenders, real estate professionals, and buyers and sellers from wire fraud. With integration with the leading title production software, CertifID ...

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CertifID offers custom pricing plan

Afterpay - Buy Now Pay Later Platforms

Afterpay

Split your payments, expand your possibilities.

Best for: SMB teams · Mid-market · Enterprise

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What is Afterpay?

Afterpay enables customers to acquire what they need and want, while simultaneously building strong financial wellbeing and managing their expenses, by splitting the payments up over four installments, for online and in-store purchases. This innovative solution is dedicated to granting our ...

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Afterpay offers custom pricing plan

Stripe Payments - Payment Processing Software

Stripe Payments

Seamless payments, anytime, anywhere.

Best for: SMB teams · Mid-market · Enterprise

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What is Stripe Payments?

Stripe Payments is the most powerful and flexible way to accept payments on the web. It is a simple way to accept credit cards on your website, in your mobile app, or wherever payments are made.  In addition to accepting payments online, Stripe provides you with all the tools you need to ...

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Stripe Payments offers custom pricing plan

What buyers evaluate in Payment Processing Software
Range of supported payment methods including credit cards, mobile wallets, POS, and phone/mail orders
Security features specific to payment processing such as encryption standards and compliance with financial regulations
Scalability and reliability of the platform to handle high transaction volumes and international payments
GCPay - New SaaS Software

GCPay

Effortless payments for streamlined construction operations.

Best for: SMB teams · Mid-market · Enterprise

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What is GCPay?

GCPay is an innovative construction payment management software that helps businesses streamline operations and deploy automation effortlessly. It arms users with simplified workflows and eliminates the risk of subcontractor-related calculation errors thanks to real-time monitoring. Scheduled ...

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GCPay offers custom pricing plan

SecurePay - Payment Processing Software

SecurePay

Simplify customer payments and collections with SecurePay.

Best for: SMB teams · Mid-market · Enterprise

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What is SecurePay?

SecurePay is payment and collection processing software designed to help small businesses manage their customers, payments, and collections. SecurePay provides small business owners with a powerful yet simple-to-use online system that is built on a central database to track all customer ...

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SecurePay offers custom pricing plan

PayAnywhere - Payment Processing Software

PayAnywhere

Secure payments made easy on the go!

Best for: SMB teams · Mid-market · Enterprise

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What is PayAnywhere?

PayAnywhere is payment processing software that enables you to accept secure payments anywhere on the web.. It offers the ability to take payments for goods and services through your mobile device or tablet, where you are. Businesses of any size can take advantage of PayAnywhere to process ...

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PayAnywhere offers custom pricing plan

Pin Payments - Payment Processing Software

Pin Payments

Streamlining payments with top-notch security.

Best for: SMB teams · Mid-market

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What is Pin Payments?

Pin Payments is a feature-rich, secure, inexpensive, easy-to-install credit card processing application designed for small and e-commerce businesses.It is a very scalable and flexible platform that can operate with minimal staff overhead and provide the maximum security with rigorous PCI ...

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Pin Payments offers custom pricing plan

Credit Key - Buy Now Pay Later Platforms

Credit Key

Accelerate B2B payments with Credit Key.

Best for: SMB teams · Mid-market · Enterprise

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What is Credit Key?

Credit Key enables businesses to integrate payments convenience and speed of B2C transactions into their own B2B checkout process. This innovative product is patent-protected and streamlines the order fulfillment process by allowing shoppers to complete their payment quickly in the moment. ...

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Credit Key offers custom pricing plan

Square Payments - Payment Processing Software

Square Payments

Simple and secure payments on-the-go.

Best for: SMB teams · Mid-market · Enterprise

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What is Square Payments?

Square Payments is a mobile and in-person payment processing solution used by small business owners — independent retailers, food vendors, and service providers — to accept card payments via smartphone or tablet without dedicated point-of-sale hardware. It combines a free card reader, simple ...

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Square Payments offers custom pricing plan

Four - Buy Now Pay Later Platforms

Four

Convenience at your fingertips. Shop now, pay later.

Best for: SMB teams · Mid-market · Enterprise

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What is Four?

Four is an innovative tech company focusing on giving customers the option to buy now and pay later as well as a variety of purchase financing solutions. We design eCommerce plugins that enable Retailers to offer their customers a diverse range of payment options for a more convenient shopping ...

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Four offers custom pricing plan

Payline Data - Payment Processing Software

Payline Data

Streamline your payments, with confidence.

Best for: SMB teams · Mid-market · Enterprise

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What is Payline Data?

Payline Data is an integrated interchange-plus payment processing software that offers a proven payment solution that can scale from start-up to small and mid-sized businesses to large corporate enterprises. The intuitive interface improves tracking and managing of your payment processing ...

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Payline Data offers custom pricing plan

Zip - Buy Now Pay Later Platforms

Zip

Unlock seamless payments and boost sales.

Best for: SMB teams · Mid-market

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What is Zip?

Zip's platform allows merchants to enjoy increased conversion rates, stabilized customer loyalty, and no-delay payments. It's simple to set up without API integration required, offering compatible solutions with WooCommerce, Shopify, BigCommerce, and more. Experience complimentary, ...

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Zip offers custom pricing plan

Venmo for Business - Payment Processing Software

Venmo for Business

Streamlining business transactions, one click at a time.

Best for: SMB teams · Mid-market · Enterprise

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What is Venmo for Business?

Venmo for Business is a powerful next-generation solution that provides merchants with the ability to process credit and debit cards, as well assist with customer service, sales, marketing, and informational data. Based upon a robust and powerful platform, Venmo is a Software-as-a-Service ...

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Venmo for Business offers custom pricing plan

EPX - Payment Processing Software

EPX

Streamline Your Payments with EPX.

Best for: SMB teams · Mid-market · Enterprise

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What is EPX?

Our EPX payment processing software is a cloud-based software program designed to handle multiple credit/debit/cash transactions and customer data. EPX is PCI-DSS compliant, easy-to-use, and comes in three editions, all written in Java programming language. This payment processing software is ...

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EPX offers custom pricing plan

Wisely by adp - New SaaS Software

Wisely by adp

Empower your workforce. Simplify payroll.

Best for: SMB teams · Mid-market · Enterprise

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What is Wisely by adp?

Wisely by ADP is the latest in worker-focused payment solutions. It caters to employers' compliance, convenience, and administrative needs, while also granting workers with freedom, versatility, and financial wellbeing. Through its simple system, it provides employers the easiest way to ...

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Wisely by adp offers custom pricing plan

Satispay - Payment Processing Software

Satispay

Payments made easy and affordable.

Best for: SMB teams · Mid-market · Enterprise

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What is Satispay?

Satispay is an easy-to-use payment processing software that allows individuals and businesses to accept payments over the Internet in real-time and on their own terms. Satispay avoids the usual high fees of other services with no setup costs, no monthly fees, no surcharges, and no merchant ...

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Satispay offers custom pricing plan

Privacy - New SaaS Software

Privacy

Protect your finances with secure virtual cards.

Best for: SMB teams · Mid-market · Enterprise

Try for Free

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What is Privacy?

Protect your finances and personal information with Privacy.com. Keep your real card info safe by creating separate virtual cards per payment, setting custom settings for each card for increased security. Get exactly what you need in no time with 1-click virtual card creation. Effortlessly take ...

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Starts from $10/Month, also offers free forever plan

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Frequently Asked Questions About Payment Processing Software

Stuck on something? We're here to help with all the questions and answers in one place.

The most important Payment Processing Software features to evaluate are Accounts Payable, Accounts Receivable, Bank Reconciliation, Billing and Invoicing, Cash Management, Collections. Most buyers prioritize ease of use, reporting, and integration capabilities when choosing a solution. Look for tools that cover your core workflow before comparing advanced features.

Payment Processing Software pricing varies widely — from free plans to enterprise contracts. 8 products on Spotsaas offer a free plan or trial, including Wallester, ePayPolicy, Plooto. Paid plans typically start around $10–$50/month per user. Check individual product pages for current pricing.

The top rated Payment Processing Software based on verified user reviews and SpotScore are LexisNexis Payment Solutions, Paymentwall, Omise. These tools consistently score highest on ease of use, feature depth, and customer support quality. Ratings are updated monthly based on real buyer feedback.

To choose the right Payment Processing Software, start by listing your must-have features — commonly Accounts Payable, Accounts Receivable, Bank Reconciliation, Billing and Invoicing, Cash Management, Collections. Then filter by team size, budget, and integrations you already use. Compare at least 3 options and use free trials to test before committing. Spotsaas lets you compare side-by-side in minutes.

Yes — 8 Payment Processing Software on Spotsaas offer a free plan or free trial. Popular free options include Wallester, ePayPolicy, Plooto. Free plans typically cover core features for small teams; paid upgrades unlock advanced reporting, integrations, and support.

The best Payment Processing Software for small businesses are affordable, quick to set up, and scale without complexity. Top picks for small teams are Flatpay, Nickel, PayTabs. Look for tools with per-user pricing, no long-term contracts, and strong onboarding support to minimize ramp-up time.

Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].