Zuora is an enterprise subscription and usage billing platform, taken private by Silver Lake and GIC in 2025. Pages here cover replacing Zuora Billing with self-hosted Kill Bill or Lago.
Comparing Zuora Billing with Kill Bill for companies with complex catalogs: subscriptions, usage and invoicing, multi-tenancy, payment and tax plugins, the Kaui back office, and the in-house Java engineering Kill Bill needs instead of a Zuora contract.
Comparing Zuora with Lago for usage-heavy pricing: event metering and aggregation, ClickHouse for high event volumes, invoicing and payment providers, accounting integrations, and which Zuora capabilities such as revenue recognition Lago does not cover.
Moving from Zuora to Kill Bill: extracting accounts, subscriptions and invoices through data source exports, translating the product catalog, importing through Kill Bill's APIs, reconnecting payment gateways and reconciling the first invoice runs.
Cost of ownership by component: an unpublished Zuora subscription and its implementation partner, against Kill Bill's free software, Java and database operations, plugin development, migration and support, with the questions to ask in a renewal.
Getting billing data out of Zuora: data source exports by object, file formats and the 7-day download window, which legacy exports are gone, and a checklist of what to extract before the contract ends.
Tell us what you're working on, whether it's a deployment, an audit, a security test or a cyber range. You'll speak with an engineer who can help you scope it.