Guides
Billing guides and comparisons
Guides for teams that are choosing, building or moving a billing system. Start with the question you have today.
Compare your options
- Fixed fee or percentage of revenue Compare a fixed billing fee with a share of revenue, and find your break-even point with a calculator.
- Self-hosted vs managed billing Compare running billing software yourself with a vendor-managed service: data, operations, security, cost and exit.
- Build vs buy a billing system What building billing involves, what buying costs you in control, and a checklist to pick a path.
- How to choose a billing system Business and technical criteria to compare billing systems, with the question to ask each vendor.
- Kill Bill vs Aviate What the open source engine includes and what Aviate adds on top of it.
Learn and plan
- Pricing models Common ways to charge customers, from a monthly price to pay per use, each with an example invoice.
- Billing glossary Short definitions of subscription billing terms, from proration to dunning.
- Migrating to Kill Bill The phases of a move to Kill Bill: new accounts first, then existing accounts in batches.
- Kill Bill partners Partners for hosting, implementation, tax, payments and testing.