Kill Bill

Self-hosted billing platform for subscriptions and complex pricing models

Also known as
kill-bill

Available worldwide · Popular in: US

What is Kill Bill?

Open-source subscription and usage billing system that runs on your infrastructure, supporting recurring charges, tiered pricing, and usage-based models with detailed invoicing and audit trails.

Independently observed

Kill Bill pricing

Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.

Pricing as of verify at live pricing ↗Independently observed
from $9999/moHybridFree tier

Free open source or $9,999/month Aviate enterprise

Kill Bill (Open Source)

Free
Free

Free, open-source billing platform with community support

  • Subscription and usage billing
  • Catalog and invoicing
  • Multi-tenancy
  • Plugin framework
  • REST API
  • Community support
  • Self-hosted deployment

Aviate

$9,999/month billed annually, never tied to revenue
annual

Cloud-hosted enterprise offering with support and additional features

  • Catalog UI and plan APIs
  • Coupons
  • Cloud hosting with auto-scaling
  • Aviate Metering for usage events
  • Aviate Wallet for prepaid credits
  • Aviate Tax
  • Level 3 support (first response within 1 business day for P1)
  • Monitoring and health checks
  • Plugin marketplace

What Kill Bill does

The capabilities that matter for billing & invoicing software, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.

Core
Subscription billing
✓
Usage metering
Real-time
Pricing models
Subscriptions, usage-based, prepaid, postpaid, hybrid, and complex multi-currenc
Invoicing & AR
✓
Catalog management
✓
Commerce
Merchant of record
✗
Finance
Revenue recognition
Native ASC 606
Tax handling
Native
Collections
Dunning
Basic retry
Integrations
GL / ERP sync
✗
Ecosystem
API-first / developer-first
✓
Deployment
Self-hostable
✓
Insight
Revenue analytics
✓
Independently observed

Platform & deployment

Independently observed
Platforms
  • Web
Deployment
  • Cloud / SaaS
  • Hybrid
  • On-premise
  • Self-hosted

Integrations (20)

Independently observed
tax
  • Tax Calculation•
  • Avalara AvaTax•
  • Kintsugi•
analytics
  • Analytics•
crm
  • Salesforce→
  • HubSpot→
erp
  • NetSuite→
  • SAP→
  • QuickBooks→
payments
  • Hyperswitch•
  • Stripe
  • Adyen
  • Braintree
  • PayPal
  • GoCardless
  • Avalara
  • Vertex
  • LDAP
  • Active Directory
  • Email Notifications•

Security & compliance

Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality

Kill Bill FAQ

Common questions about Kill Bill, answered from independent, dated evidence.

What is Kill Bill?

Kill Bill is an open-source billing and payments platform that handles complex subscription, usage-based, and prepaid billing models with multi-currency invoicing, tax compliance, and payment gateway abstraction. Deploy self-hosted or use fully managed hosting with optional enterprise accelerator capabilities. It is indexed under Billing & Invoicing Software.

Source: https://killbill.io/pricing.html

Is Kill Bill free to use?

Kill Bill is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. A commercial or hosted edition starts at $40 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.

Source: https://killbill.io/pricing.html

What platforms does Kill Bill support?

Kill Bill supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.

Source: https://killbill.io/pricing.html

Can Kill Bill be self-hosted?

Yes. Kill Bill can be deployed cloud / SaaS, hybrid, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.

Source: https://killbill.io/pricing.html

What does Kill Bill integrate with?

We have confirmed 9 integrations for Kill Bill, including Stripe, Adyen, Braintree, PayPal, GoCardless, Avalara, Vertex and LDAP, plus 1 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.

Source: https://killbill.io/pricing.html

What security certifications does Kill Bill have?

We have independently confirmed GDPR for Kill Bill. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Kill Bill not holding them. Always confirm compliance directly before you rely on it.

Source: https://killbill.io/platform/tax-compliance.html

Is Kill Bill open source?

Yes. Kill Bill is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.

Source: https://github.com/killbill/killbill

Where is Kill Bill available?

Kill Bill is available worldwide. Its primary market is the United States.

Source: https://killbill.io/pricing.html

Kill Bill alternatives

Other billing & invoicing software we track, ranked by the same independent score.

All Kill Bill alternatives, ranked →

Independent · unbought · dated

The vioscaleAI score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Kill Bill, not the verdict.

Balanced composite 43 / 100
high · 77%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Capabilities810.108.1✓
Pricing transparency1000.066.3✓
Development activity460.094.3✓
Release cadence740.053.8✓
Security posture200.163.1✓
Integrations300.072.2✓
Stars710.031.8✓
Security score440.041.8✓
Dependent projects200.061.3✓
Price level250.041.1✓
Reliability00.080.0✓
Package downloads00.140.0-
Developer Q&A activity00.060.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Activity

AttributeValueEvidence
Commits last 30d27mediumsource · 2026-10-13 · 65%

Adoption

AttributeValueEvidence
Github stars5,793highsource · 2026-10-13 · 90%
Dependent repos15highsource · 2026-10-13 · 85%

Content

AttributeValueEvidence
Faq8 itemsmediumsource · 2026-09-10 · 68%

Features

AttributeValueEvidence
CapabilitiesDunning: basic_retry · Gl sync: No · Analytics: Yes · Api first: Yes · Invoicing: Yes · Tax handling: nativemediumsource · 2026-10-13 · 60%

Integrations

AttributeValueEvidence
Count10mediumsource · 2026-10-13 · 60%

Language

AttributeValueEvidence
PrimaryJavahighsource · 2026-10-13 · 90%

License

AttributeValueEvidence
SpdxApache-2.0highsource · 2026-10-13 · 95%

Market

AttributeValueEvidence
AvailabilityPrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: …mediumsource · 2026-10-13 · 50%

Pricing

AttributeValueEvidence
Free tierYesmediumsource · 2026-10-13 · 60%
Modelfreemiummediumsource · 2026-10-13 · 60%
Price levelhighmediumsource · 2026-10-13 · 60%
TransparentYesmediumsource · 2026-10-13 · 60%
Starting priceAmount: 9,999 · Currency: USDmediumsource · 2026-10-13 · 60%

Release

AttributeValueEvidence
History20 itemsmediumsource · 2026-10-13 · 70%
Cadence days47mediumsource · 2026-10-13 · 70%

Reliability

AttributeValueEvidence
Sla pct48mediumsource · 2026-08-14 · 60%

Security

AttributeValueEvidence
GdprYeshighsource · 2026-08-14 · 75%
PciYeshighsource · 2026-08-14 · 75%
Trust centerhttps://killbill.io/platform/tax-compliance.htmlmediumsource · 2026-10-13 · 60%
Scorecard4.4highsource · 2026-10-13 · 90%
VulnerabilitiesCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.kill-bill.billing%3Akillbill-util&per_page=100 · Last 12m: 0highsource · 2026-10-13 · 90%
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