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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 41-60 out of 62

Przelewy24 - Payment Processing Software

Przelewy24

Effortless payment processing for modern businesses.

Best for: SMB teams · Mid-market · Enterprise

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What is Przelewy24?

Przelewy24 is a multichannel payment processing software with a single, unified platform. It gives you the ability to present modern payment techniques to your customers, and provides all the tools to support online channels. We simplify the way you process transactions and provide 24/7 ...

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Przelewy24 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

PaymentSpring - Payment Processing Software

PaymentSpring

Secure payments made simple.

Best for: SMB teams · Mid-market · Enterprise

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What is PaymentSpring?

PaymentSpring is a leading provider of Payments Solutions that enable merchants to accept credit & debit payments with ease. With its robust Feature-Rich Software, industry-applicable Support, competitive Pricing and a promising Growth Strategy, this secure payment processor offers an ultimate ...

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PaymentSpring offers custom pricing plan

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Shift4 Payments - Payment Processing Software

Shift4 Payments

Secure, affordable, and effortless payment processing.

Best for: SMB teams · Mid-market · Enterprise

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What is Shift4 Payments?

Shift4 Payments is a revolutionary merchant account payment processing solution. From our patented online technology that displays your shopping cart directly on a mobile phone or computer to the dynamic web-based reporting provided by Shift4's comprehensive suite of applications, we deliver ...

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Shift4 Payments offers custom pricing plan

WePay - Payment Processing Software

WePay

Streamline your payments with WePay.

Best for: SMB teams · Mid-market · Enterprise

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What is WePay?

WePay is an all-in-one payment processing software. The platform enables merchants of all sizes, from small to large, to process credit and debit cards, online and offline payments in a number of different countries. We Pay can integrate with a variety of platforms that include Salesforce ...

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QuickBooks Payments - Payment Processing Software

QuickBooks Payments

Get paid faster with QuickBooks Payments.

Best for: SMB teams · Mid-market · Enterprise

See Plans & Pricing

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What is QuickBooks Payments?

QuickBooks Payments is a payment processing service that makes it easier for your customers to pay you. It's all online, 24/7, so you can immediately start receiving funds from your customers. There's an option to choose multiple payment solutions including credit card, debit card, electronic ...

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Starts from $12.50/Month

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
Klarna - Buy Now Pay Later Platforms

Klarna

Shop smarter with seamless payments and financing.

Best for: SMB teams · Mid-market · Enterprise

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What is Klarna?

Klarna helps make shopping simpler and more enjoyable by allowing customers to track their purchases, make payments and log into their account with ease. With the goal of becoming the preferred way to shop around the world, it offers unique products and services in relation to payments, ...

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Klarna offers custom pricing plan

Sezzle - Buy Now Pay Later Platforms

Sezzle

Empowering budget-friendly purchases, hassle-free.

Best for: SMB teams · Mid-market · Enterprise

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4.4

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What is Sezzle?

Sezzle is an accredited B Corp that simplifies the payment process for buyers with budget plans and finance options with absolutely no fees or interest! Customers can easily integrate Sezzle with renowned platforms, like Shopify Plus, WooCommerce and more, to improve sales and gain new ...

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Sezzle offers custom pricing plan

Affirm - Buy Now Pay Later Platforms

Affirm

Empowering financial freedom for all.

Best for: SMB teams · Mid-market · Enterprise

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What is Affirm?

Affirm is a revolutionary financial service employing advanced technology to create disruption in the industry. We put customers first by offering financing solutions that are simple, straightforward and free of hidden charges. Our Affirm for Merchants program arms business owners with the ...

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Affirm offers custom pricing plan

BluePay - Payment Processing Software

BluePay

Efficient payment processing for your business.

Best for: SMB teams · Mid-market

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What is BluePay?

BluePay is a payment processing application that enables you to integrate various payment methods into your online or physical store. It supports authorization, capture and refunds and the ability to process customer payments directly on-site via a hardware key or by entering information on ...

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BluePay offers custom pricing plan

Nuvei - Payment Processing Software

Nuvei

Effortless payments, seamless transactions.

Best for: SMB teams · Mid-market · Enterprise

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What is Nuvei?

Nuvei is a cloud-based SaaS payment processing system for business that combines the power and flexibility of API-based transaction processing with the simplicity of traditional online Point-of-Sale (POS) systems. In addition to its flexible API, Nuvei supports familiar POS interfaces such as ...

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Nuvei offers custom pricing plan

Libeo - New SaaS Software

Libeo

Streamline your invoices, simplify your cash flow.

Best for: SMB teams · Mid-market · Enterprise

Try for Free

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What is Libeo?

Libeo is the go-to solution for businesses looking to streamline their invoice and payment processes. As Europe's leading B2B payments platform, Libeo offers convenience and efficiency with its centralized platform. Say goodbye to tedious and error-prone manual processing, as Libeo digitizes ...

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Libeo offers custom pricing plan

GoCardless - Payment Processing Software

GoCardless

Collect recurring payments straight from bank accounts.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

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What is GoCardless?

GoCardless is a bank payment platform for collecting recurring payments directly from customers' bank accounts, using Direct Debit, ACH, Bacs, SEPA and open banking rather than card networks. It is built for subscriptions, invoicing, instalments and any business billing the same customers ...

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Free TrialTry Free →·

GoCardless offers custom pricing plan

Laybuy - Buy Now Pay Later Platforms

Laybuy

Shop now, pay later with ease.

Best for: SMB teams · Mid-market · Enterprise

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What is Laybuy?

Laybuy lets you get the purchases you want now and pay in six instalments with no interest! No more waiting - this stress-free payment plan is a great option for those that want to shop and pay later. Unlike buy now, pay later services, you'll get full protection from consumer laws with Laybuy, ...

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Laybuy offers custom pricing plan

Global Payments - Payment Processing Software

Global Payments

Transforming payment processing for seamless transactions.

Best for: SMB teams · Mid-market · Enterprise

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What is Global Payments?

Global Payments offers full-service, in-house, state-of-the-art Payment Processing Software that's been designed to simplify credit card processing through one central solution. Its comprehensive feature set provides easy access controls and reconciliation for merchants' businesses while ...

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Global Payments offers custom pricing plan

Plastiq - Payment Processing Software

Plastiq

Unlock unlimited bank transfers and streamline payables.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

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What is Plastiq?

Plastiq allows businesses to pay suppliers with their credit card even if it's otherwise not accepted. It offers cash flow management, payables automation and accounting integrations to help streamline business processes. With Plastiq, businesses can manage their finances more effectively and ...

Read more about Plastiq
Free TrialTry Free →·

Starts from $59/Month, also offers free forever plan

ACI Customer Communications Management - New SaaS Software

ACI Customer Communications Management

Effortless communication and payment solutions for satisfied customers.

Best for: SMB teams · Mid-market · Enterprise

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What is ACI Customer Communications Management?

ACI Customer Communications Management makes customer communication an easy task. This end-to-end platform enables you to develop and manage content suited to your business needs. It also provides the ability to personalize consent through its preference management tools. All range of channels, ...

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ACI Customer Communications Management offers custom pricing plan

Bolt - New SaaS Software

Bolt

Effortless checkout for any device.

Best for: SMB teams · Mid-market · Enterprise

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What is Bolt?

Bolt simplifies the checkout process with its streamlined multi-brand network. The software provides tools to handle checkout on all types of devices while simultaneously detecting fraud and processing more successful transactions. Accepting all major card brands as well as alternative methods, ...

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Bolt offers custom pricing plan

PayPal Credit - Buy Now Pay Later Platforms

PayPal Credit

Simplify your payments, unlock your potential.

Best for: SMB teams · Mid-market · Enterprise

Try for Free

Add to compare

What is PayPal Credit?

PayPal Credit is a powerful line of credit that provides convenience and control over your finances. With no annual fees and a flexible payment plan, you have the freedom to pay for your purchases immediately or over time. Get an instant credit line with easy and secure application process that ...

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LEVELSET - New SaaS Software

LEVELSET

Streamline payments and get paid with ease

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

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watch-demo

Watch Demo

What is LEVELSET?

Levelset provides contractors and suppliers with cloud-based tools to manage payments and take the stress out of the process. With Levelset, users can exchange necessary payment documents like lien waivers, pay applications, and preliminary notices to have a clear understanding of everyone ...

Read more about LEVELSET
Free TrialTry Free →·

Starts from $29/recipient when monthly, 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].