SaaS & Subscriptions
Launch, Test, and Scale Any Subscription Model
Configure trials, tiered plans, add-ons, coupons, and usage-based overages from a single catalog. Price experiments run in-house, not on a vendor's roadmap.
Trusted by companies processing billions in revenue
Capabilities
What You Can Do
Everything SaaS teams need to bill, retain, and grow recurring revenue.
Model Any Pricing Structure
Define multi-tier plans, trials, promotional phases, and add-ons in a declarative catalog. Launch new packages without code changes.
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Automate Upgrades, Downgrades, and Proration
Mid-cycle plan changes are prorated automatically. Customers pay only for what they use, reducing billing disputes and support tickets.
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Run Promotions Without Engineering
Create coupon codes scoped to specific plans. Fixed or percentage discounts drive sign-ups and upsells while lowering customer acquisition cost.
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Retain Revenue with Smart Dunning
Configure retry schedules and grace periods for failed payments. Maximize recovery and control entitlement during delinquency.
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Get Real-Time Revenue Visibility
Invoices generate instantly as customers sign up, upgrade, or cancel. No batch lag. CFOs see up-to-the-minute revenue data.
How It Works
Three Steps to Recurring Revenue
1
Define Your Catalog
Create products, plans, phases, and pricing rules in Kill Bill's declarative catalog. Add trials, discounts, and add-ons.
2
Automate Billing
Kill Bill handles invoice generation, proration, payment collection, dunning, and entitlement management automatically.
3
Iterate on Pricing
Update catalog versions to test new pricing structures. Analyze results with your own BI tools using open data access.
Why Kill Bill
Why SaaS Teams Choose Kill Bill
- Revenue agility. Launch new plans and pricing experiments in hours, not quarters.
- Packaging flexibility. Mix subscriptions, usage, one-time charges, and credits in one catalog.
- Retention tools built in. Dunning, coupons, and wallet credits reduce churn and increase LTV.
- No per-transaction fees. Open-source under Apache 2.0. Your costs stay flat as revenue grows.
- Full data ownership. Run in your cloud. Feed billing data into your data warehouse with open APIs.
- Battle-tested at scale. Trusted by companies processing billions in revenue, from startups to Fortune 500.
Proven in Production
Companies That Run on Kill Bill
Kill Bill powers subscription billing for businesses across industries.
CARFAX
Reduced monthly batch processing from 12 hours to under 1 hour. Integrated Kill Bill with NetSuite and Salesforce for end-to-end quote-to-cash automation.
SaaS Community Platform
Migrated from a SaaS billing provider to Kill Bill for more flexibility to test pricing structures and generate custom analytical reports.
Faceter
Cloud video surveillance provider using Kill Bill for subscription billing at scale with flexible plan configuration.
FAQ
Common Questions
Can Kill Bill handle complex subscription models with trials, add-ons, and tiered pricing?
Yes. Kill Bill's catalog supports multi-phase plans (trial, discount, evergreen), add-on subscriptions, tiered pricing, and usage-based overages. You define these in a declarative catalog and can version it to roll out new pricing at any time.
How does proration work for mid-cycle plan changes?
Kill Bill automatically calculates prorated credits and charges when a customer upgrades or downgrades mid-billing-cycle. The system supports multiple proration policies that you can configure per plan.
Can I run pricing experiments without engineering effort?
Kill Bill's catalog versioning lets product managers update plans and pricing via API or configuration. The Aviate Catalog Plugin further simplifies this with per-plan, per-feature price modifications through a simple API. Combined with open data access, you can analyze test results with your own BI stack.
What payment gateways does Kill Bill support?
Kill Bill supports all major gateways through a pluggable API, including Stripe, Adyen, Braintree, PayPal, GoCardless, and more. You can also build custom gateway plugins to integrate with any payment processor.
How does dunning work for failed payments?
Kill Bill's overdue system lets you define retry schedules, grace periods, and entitlement changes for failed payments. You can configure different behaviors (email, block, cancel) at each stage, giving you control over revenue recovery and customer experience.
Can I migrate from another billing provider to Kill Bill?
Yes. Kill Bill's comprehensive API supports bulk account and subscription import. Companies have successfully migrated from SaaS billing providers, bringing over active subscriptions, payment methods, and billing history.
Ready to Own Your
Subscription Billing?
Explore the enterprise sandbox, read the docs, or talk to the Kill Bill team.