Powered by
, the open-source billing engine trusted by Fortune 500 companies like:
Billing
Subscriptions & Invoicing
• One-off invoices: Generate professional, brandable invoices for setup fees or custom services in seconds.
• Automated Subscriptions: Automate cycles, renewals, and grace periods with a "set it and forget it" engine.
• Auto‑proration on upgrades/downgrades: Effortlessly handle mid-cycle upgrades or downgrades with instant, accurate credit calculations.

Compliance
Tax, Compliance & Finance
• Pluggable tax engines and custom rules: Connect your preferred tax provider (like TaxJar or Anara) to automate global calculations.
• Multi-Tax Products, Global Compliance: Apply specific regional tax codes to individual line items, from SaaS to physical goods.

Analytics
Analytics & Data
• Revenue Metrics: Track MRR, ARR, and LTV in real-time with high-fidelity growth dashboards.
• Real-time events: Visualize cohort health and identify at-risk revenue before it disappears.

Developers
Developer Experience
• Stripe Migration: Move customers and payment methods with zero downtime using our migration toolkit.
• Testing Sandbox: Iterate safely in a mirror-image environment before pushing to production.
• OpenAPI Architecture: Build faster with a standardized, well-documented API designed for modern stacks.

Usage based
Metered & usage billing
• Meter anything, in real time: Ingest usage events at scale and bill per-unit, tiered, or by package — no nightly batch.
• Hybrid plans & commitments: Combine a base subscription with metered overages, prepaid credits, and minimum commitments.

Payments
Payments & Checkout
• Checkout, links & 100+ methods: Hosted checkout, payment links, and a drop-in element — cards, wallets, ACH, and BNPL.
• Multi-gateway orchestration: Route across gateways with smart, ML-optimized retries and an automatic account updater.
Learn more →

Revenue Recovery
Win back lost revenue
• Smart dunning & retries: ML retries failed payments at the optimal time, with dunning sequences across email and in-app.
• Cancellation deflection: Offer pauses, downgrades, and targeted retention offers right inside the cancel flow.

Revenue Recognition
Audit-ready revenue
• ASC 606 / IFRS 15, automated: Recognize revenue on schedule, track deferred balances, and close your books in hours.
• A subledger that ties to your GL: Standalone-selling-price allocation, deferred revenue, and clean exports to NetSuite or QuickBooks.

…and that's not even half of it.
Tax & compliance, analytics, and a full developer platform — the complete billing toolkit.
Solutions
One billing platform, for every team
From the engineers wiring up billing to finance closing the books — ChaChing fits how each team works.
01
Engineering
API-first and open source. Ship any pricing model without a billing rebuild.
02
Finance
Clean invoices, tax, and revenue recognition — close the books faster.
03
Product
Launch new plans and pricing experiments without engineering lift.
03
RevOps
Real-time metrics, dunning, and recovery — built in, not bolted on.
Integrations
Connects to the stack you already run
Payment gateways, tax engines, and data warehouses — with an API to build anything else.
Representative tools — gateways
, tax
, and more.
Switching platforms?
Keep your subscriptions, cut your fees
Seamlessly migrate to ChaChing from any billing platform — with everything intact. Keep your payment processor; migrate only your billing layer and save up to 50% on your fees.
How to migrate to ChaChing
01
Connect your current platform
Using the stripe secret key we can access your subscriptions and its dependencies
02
Select subscriptions to migrate
Migrate all or a subset of subscriptions. Replace your current hosted page with ChaChing's
03
Review and confirm migration
We import all dependencies to make sure things continue running smoothly.
Powered by Kill Bill
Built on a Foundation You Can Trust
ChaChing is built on top of Kill Bill — the open-source billing engine that's been powering enterprise billing since 2010.
Direct partnership
ChaChing works hand-in-hand with the Kill Bill core team; their engineers are actively involved in ChaChing's development and support
No black box
Kill Bill is fully open-source (Apache 2.0), meaning the infrastructure your business runs on is transparent and auditable
Battle-tested at scale
Organizations invoicing billions annually trust the same engine running under ChaChing, and a team with over 15 years of combined experience
No lock in
your data and billing logic run on an open standard. You can always take it with you.
Simple 0.35% pricing
See full pricing →
Startups & SMBs
Any small to medium business
0.35%
of billing volume
Enterprise
Enterprise solution
Custom
Talk to us
No lock-in, ever
ChaChing is built on Kill Bill's open-source core. If you ever outgrow us, your billing data and logic are fully portable — you can run Kill Bill yourself. We believe that's the only honest way to offer a managed solution.
What's included
Recurring billing and subscriptions
Set up subscriptions in the Dashboard, use Payment Links to accept payments with no code, or use Checkout’s pre-built payments page. You can also build a custom integration.
Included
Customer portal
Let your customers manage their billing details from a secure page
Included
Invoice auto-reconciliation
Automatically reconcile recurring invoices paid by ACH credit or wire transfers
Included
Multi-phase subscription schedules
Schedule changes to subscriptions ahead of time, such as upgrading on a future date.
Included
Smart Retries
Automatically retry failed payments at the optimal time by using machine learning.
Included
MRR/ARR, churn, and LTV
Track recurring revenue, retention, and customer lifetime value.
Included
Trusted infrastructure. Migrated in minutes.
No processor swap
Keep Stripe for payments. Swap only the billing layer.
No data rebuild
Customers, subscriptions, and tax rates import automatically.
No customer disruption
Hosted pages update seamlessly. Billing continues uninterrupted.
See how much you can save with ChaChing
Why ChaChing?
Founders memo
Running your business online can feel overwhelming, especially with subscription models. On top of that, big payment processors often charge small businesses a fortune. Our vision is to challenge the status quo and make billing simple, fair, and affordable for everyone.
Built with love & sweat
Based in Miami, FL
Frequently asked questions
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Migration
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