Billing that grows with you. From open-source freedom to enterprise-grade reliability.
Whether you self-host with Kill Bill Open-Source or run enterprise workloads with Kill Bill Aviate, our support and success plans help you launch faster, reduce operational risk, and scale with confidence.
Trusted by companies processing billions in revenue
Products
Open-Source Foundation
Self-hosted control
Kill Bill Open-Source. Full control, zero lock-in.
The open-source foundation used by enterprises worldwide. Run Kill Bill entirely on your own infrastructure with complete ownership of your data, your cloud, and your compliance posture. For engineering-led teams who want full control and are comfortable managing their own infrastructure, upgrades, and operations. Ideal for teams that want maximum flexibility and are comfortable maintaining, upgrading, and operating their billing stack in-house.
100% open-source, fully self-hosted
Your data, your cloud, your compliance
No vendor lock-in. Extend and customize freely
Community-driven upgrades and documentation
Who it's for: engineering-led teams ready to run billing themselves.
Free
AWS Marketplace
Kill Bill for AWS
AWS Marketplace distribution with cloud-native integrations and AWS-specific closed-source extensions for seamless deployment.
AWS native integration
Cloud-optimized deployment
Marketplace billing integration
Low-cost by design
Low-cost by design: roughly $40/month in software fees (plus AWS usage).
Enterprise Acceleration
Fastest time-to-value
Kill Bill Aviate: your enterprise-ready billing engine.
Aviate gives you a reliable, enterprise-grade billing engine with prebuilt features that reduce engineering load and help you go live faster with fewer surprises. It accelerates time-to-production with catalog, taxation, multi-currency, billing rules, audit tooling, and operational guardrails built in so you minimize risk while scaling.
Launch in weeks, not months, with 80% of billing logic prebuilt
Enterprise readiness: proven patterns for scale, reliability, and audit requirements
Enterprise features: taxation, multi-currency, invoice rules, mediation, dunning
Predictable upgrades and long-term maintainability with a guided path
Proven patterns for auditability, compliance, and operational safety
Works with your cloud (AWS, GCP, Azure, on-prem, hybrid)
Who it's for: fast-growing teams and enterprises that want predictable delivery, fewer surprises, and a supported path to scale.
Simple, predictable pricing
Support & Services
Direct access to the core team.
The engineers behind the platform for 15+ years, across complex, global deployments, partner with your team to keep your revenue engine humming. Avoid costly catch-up projects, stay current with proactive upgrades and security guidance from the team that built the platform.
Flat annual fees, never tied to your revenue
Choose the support that fits your operating risk, not your top line. Stay current with proactive upgrades, priority bug fixes, and security/CVE guidance from the team behind the platform.
Tier 2: Growth Support (Low-touch)
Best for $5M–$50M ARR
A cost-effective support plan for teams who operate Kill Bill themselves but want direct access to the maintainers when issues arise. Ideal for steady-state operations and non-urgent investigations.
Ideal for growth-stage teams who operate Kill Bill independently but want expert help when needed.
Slack access to the core team
Up to 4 hours/week of guidance and troubleshooting
Best-effort investigations for non-critical issues
Upgrade and configuration recommendations
Predictable flat annual fee, never tied to your revenue
Who it's for: teams in the $5M–$50M ARR range with a strong internal engineer or contractor who can operate the system independently.
Quarterly or annual contract
Tier 1: Enterprise Success Plan (High-touch)
Recommended for $50M+ ARR / regulated
Our highest-tier success plan for organizations running mission-critical, regulated, or high-scale billing workloads. You get priority access, proactive guidance, architecture reviews, and hands-on support from the team that builds Kill Bill and Aviate.
Priority Slack channel and priority engineering queue
48-hour SLA for critical production issues
Proactive guidance: architecture reviews, upgrade planning, and performance recommendations to keep your billing stack running smoothly at scale
Key event readiness for launches, migrations, and quarterly billing runs
Deep investigations led by our engineers
Custom recommendations for performance, observability, and security
Predictable flat annual fee, never tied to your revenue
Who it's for: enterprises $50M+ ARR, regulated industries, or any team that cannot afford billing downtime.
Annual contract
Operate with confidence. Teams that stay current have smoother quarters. Enterprise Support keeps you on a healthy upgrade cadence: avoiding the cost and risk of emergency recovery projects later.
Why teams choose Aviate + Enterprise Success Plan
Turn open-source flexibility into enterprise-grade reliability.
Faster and safer time-to-production
Predictable operations with fewer surprises
Access to the engineers who build the platform
Proactive reviews and upgrade guidance
Lower long-term total cost of ownership
Zero lock-in. Your data, your cloud, your control
Flat fees outperform percentage pricing
Many billing vendors charge a percentage of your revenue. Drag the slider to see how that compares to Kill Bill's predictable flat fees.
Support Comparison
Compare response times, SLA coverage, and service levels across all support tiers.
Aviate is software. Production investigations and incident response require Enterprise Support.
| Plan / Service | SLA / Response Time | Hours Included | Slack Channel | Production Investigation ⓘ | Pricing Model | Focus / Scope |
|---|---|---|---|---|---|---|
| Tier 2: Growth Support (Low-touch) | No SLA, cooperative debugging | Up to 4 hrs/week | Yes | Yes (cooperative) | Flat annual fee | Investigations, troubleshooting with customer assistance. |
| Tier 1 Enterprise Support | 48-hour SLA for critical issues | Unlimited (priority) | Yes | Yes (tiered plans) | Flat annual fee | Production-critical workloads. Highest priority. |
*"Production investigation" means issue triage, log analysis, and remediation guidance in your production environment. For SLA coverage and priority handling, choose Tier 1.
Ready to Scale Your
Enterprise Billing?
Connect with our team to discuss your billing requirements and find the right Kill Bill solution for your enterprise. From open-source deployments to fully-managed enterprise support.
Support
Work directly with the Kill Bill core team
Documentation
Organized product documentation library and API Reference
Community
Join the discussion in our user community
Admin User Interface
Kaui is a robust, user-friendly back-office web-based UI for customer success, finance, RevOps, and developer teams to easily configure price books and manage subscriptions & payments.