18.3
Kill Bill is an open-source, programmable billing platform with APIs for pricing models, subscriptions, invoices, and payment gateway integrations.
Free planOpen sourceWebAPILinux
Best Billing and Invoicing Software in 2026
28.3
Wave is invoicing software for businesses to create and send invoices, collect payments, and manage customer information.
Free planAndroidiOSWeb
38.1
Billdu is paid invoicing software for the web, iOS, and Android.
Free planAndroidiOSWeb
- 4
FreshBooks
FreshBooks is accounting software for freelancers, solopreneurs, and small businesses.
AndroidiOSWebAPI8.0From $4.60 a month - 5
Hiveage
Hiveage is online invoicing and billing software for small businesses and freelancers.
Free planAndroidiOSWebAPI7.8From $19 a month - 6
Recurly
Recurly is web-based subscription billing software from Recurly, a company founded in 2009 and headquartered in San Francisco.
AndroidiOSWebAPI7.8From $249 a month - 7
Zoho Billing
Zoho Billing is a paid service for creating recurring invoices, collecting online payments, and managing customer billing.
AndroidiOSWebAPI7.8From $39 a month - 8
FastSpring
FastSpring is a merchant of record for companies selling digital products, including SaaS and software.
Free planAndroidiOSWebAPI7.6Free plan - 9
Lemon Squeezy
Lemon Squeezy is an all-in-one sales platform for SaaS companies, software makers, and digital creators offering downloads, subscriptions, and software licenses.
WebAPI7.6$550 one-time - 10
Billsby
Billsby manages subscriptions, recurring billing, invoicing, and customer lifecycle tasks.
Free planWebAPI7.5From $45 a month - 11
Lago
Lago is an open-source billing platform that links product usage and commercial terms to customer invoices.
Free planOpen sourceWebAPISelf-hosted7.5Free plan - 12
Younium
Younium is a subscription management platform for B2B SaaS and technology companies.
AndroidiOSWebAPI7.4From 500 SEK a month - 13
Zoho Invoice
Zoho Invoice is invoicing software with a free plan for small businesses, consultants, agencies, contractors, freelancers, entrepreneurs, and startups.
Free planAndroidiOSmacOSWindows7.2Free plan - 14
Square Online
Free planWeb7.1From $49 a month - 15
Invoice Simple
Invoice Simple provides tools for small businesses to create and send invoices, estimates, and receipts on Android, iOS, and the web.
AndroidiOSWeb7.0From $69.99 a year - 16
Orb
Orb is a web and API platform for usage-based billing, hybrid pricing, and revenue workflows.
WebAPI6.8 - 17
Simplybill
Simplybill is a cloud-based invoicing service for creating, sending, and tracking invoices in a browser.
Free planWeb6.8From $5 a month - 18
ChargeOver
WebAPI6.7From $229 a month - 19
Invoicera
Invoicera is invoicing and billing software with recurring invoices, online payments, payment reminders, multi-currency invoicing, and a client portal.
AndroidiOSWebmacOS6.7From $50 a month - 20
Invoice2go
Invoice2go helps freelancers and small businesses prepare estimates, send invoices, collect payments, and manage expenses.
AndroidiOSWeb6.6 - 21
Maxio
Maxio combines billing and financial reporting in a quote-to-cash platform for B2B SaaS and AI companies.
WebAPI6.5From $599 a month - 22
BillingPlatform Accounts Receivable
BillingPlatform Accounts Receivable automates payment collection, credits, refunds, and management of overdue accounts.
WebAPI6.4 - 23
6.2 - 24
6.0 - 25
Subscript
Subscript combines B2B SaaS billing, revenue recognition, and reporting for finance leaders and teams.
WebAPI5.8From $150,000 a year