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Best Subscription Billing Software in 2026

Subscription billing software supports recurring charges and related tasks such as handling payment changes, usage, and taxes. Compare customer billing portals and dunning automation with proration controls, which address different parts of the billing workflow. Multi-currency billing, usage-based billing, and tax automation are also covered. Free-plan availability and paid-from pricing offer a cost comparison point. The entries include Kill Bill, Lago, and Pabbly Subscriptions, as well as PayWhirl and UniBee. Consider how you charge customers, manage subscription changes, and handle billing across currencies or usage when assessing the listed capabilities.

  1. 1

    Flexprice

    Free plan Open source APILinuxSelf-hosted+1

    Choose Flexprice if you need subscription, usage-based, or hybrid billing and want to begin with a free plan.

    9.0 Free plan · paid from $500/mo · 30-day trial Visit site
  2. 2

    FOSSBilling

    Free plan Open source APILinuxSelf-hosted+1

    FOSSBilling brings billing, client management, hosting provisioning, and domain workflows together in self-hosted software.

    9.0 Free plan Visit site
  3. 3

    Kill Bill

    Free plan Open source APILinuxMac+3

    Kill Bill offers programmable billing with self-hosted deployment choices and a broad set of listed integrations.

    8.9 Free plan · paid from $40/mo Visit site
  4. 4

    GetPaidHQ

    Free plan Open source APISelf-hostedWeb

    Choose GetPaidHQ if you want to self-host subscription billing, control payment routing, or use several billing models and processors.

    8.8 Free plan Visit site
  5. 5

    Lago

    Free plan Open source APISelf-hostedWeb

    Lago covers multiple billing models and gives developers several connection options, including separate metering for AI token categories.

    8.8 Free plan Visit site
  6. 6

    Paymenter

    Free plan Open source APILinuxSelf-hosted+1

    Paymenter combines billing, deployment, support tickets, and hosting integrations in an open-source platform.

    8.8 Free plan · paid from $5/mo Visit site
  7. 7

    Meteroid

    Free plan Open source APISelf-hostedWeb

    Meteroid combines usage metering, subscription billing, invoicing, and customer billing access for software companies.

  8. 8

    UniBee

    Free plan Open source APISelf-hostedWeb

    Choose UniBee if you need subscription billing with usage metering, invoice handling, and a choice of self-hosted or managed deployment.

    8.4 Free plan · paid from $99/mo Visit site
  9. 9

    BillaBear

    Free plan APISelf-hostedWeb

    BillaBear covers subscription operations, billing models, tax management, and integrations in a system with REST API access.

    7.5 Free plan Visit site
  10. 10

    InstaPayments

    Free plan AndroidAPIiPhone+1

    InstaPayments covers core checkout and subscription collection through its Essential plan, with higher tiers adding unlimited signups or customized support.

    7.4 From $29/mo Visit site
  11. 11

    Billsby

    Free plan APIWeb

    Choose Billsby if your business needs configurable recurring billing, usage-based charges, and ways for customers to manage their accounts.

  12. 12

    Churn Buster

    Free plan APIWeb

    Churn Buster combines payment recovery with cancellation flows and provides a free Measure plan alongside paid options.

    7.2 Free plan · paid from $269/mo Visit site
  13. 13

    Pabbly Subscriptions

    Free plan APIWeb

    Choose Pabbly Subscriptions if you need flexible billing, checkout options, and payment gateway support for a web or SaaS business.

    6.9 Free plan · paid from $19/mo Visit site
  14. 14

    OpenMeter

    Free plan APISelf-hostedWeb

    OpenMeter combines real-time usage metering, access controls, and billing tools, with self-hosted and managed deployment options.

    6.8 Open source Visit site
  15. 15

    PayWhirl

    Free plan APIWeb

    PayWhirl supports a broad range of recurring and one-time offers, with billing automation, reporting, and multiple integration methods.

    6.8 Free plan · paid from $9/mo · 14-day trial Visit site
  16. 16

    Rerun

    Free plan Web

    Rerun combines recurring billing, customer account access, automated email, and payment reporting. Its US-only, USD scope and transaction fees are key considerations before adopting it.

    6.6 30-day trial Visit site
  17. 17

    BillingServ

    by BillingServ
    Free trial AndroidAPIiPhone+3

    BillingServ combines invoicing, payment collection and client access in a web service. Choose a plan according to client count and billing frequency; Enterprise requires requesting volume pricing.

    6.5 From £50/yr · 14-day trial Visit site
  18. 18

    BILLmanager

    Free trial APILinuxSelf-hosted+1

    BILLmanager combines provider billing, provisioning, support, sales, and analytics in one self-hosted platform.

    6.5 From €50/mo Visit site
  19. 19

    BoxBilling

    Free trial APISelf-hostedWeb

    BoxBilling focuses on usage-based and AI billing, combining metering, invoicing, and customer-facing components.

    6.3 Pricing on request Visit site
  20. 20

    FastSpring

    by FastSpring
    Free trial AndroidAPIiPhone+1

    FastSpring covers checkout, subscriptions, payments and tax administration for digital goods sellers, with developer tools and integrations.

    6.3 Pricing on request Visit site
  21. 21

    BillingPlatform Accounts Receivable

    Free trial APIWeb

    BillingPlatform Accounts Receivable is geared toward organizations with complex billing and collection workflows, rather than simple invoicing needs.

    6.2 Pricing on request Visit site
  22. 22

    ChargeKeep

    Free trial APIWeb

    ChargeKeep brings subscription billing, checkout options and customer subscription management into one Stripe-based service. Compare plan limits and integration needs before choosing a tier.

    6.1 7-day trial Visit site
  23. 23

    ChargeOver

    by ChargeOver
    Free trial APIWeb

    ChargeOver covers invoicing, collections, customer access, reporting and integrations in one web-based billing service.

    6.1 From $229/mo Visit site
  24. 24

    Fakturia

    Free trial APIWeb
    6.1 From €139/mo Visit site
  25. 25

    PaySimple

    Free trial AndroidAPIiPhone+1

    PaySimple combines payment acceptance, billing, customer records, reporting, and integrations across web and mobile. Consider the monthly platform charge and transaction fees when assessing fit.

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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