Lease vs Buy Car Editorial Team
Auto-finance editors
The team behind leasevsbuycar.com: every formula is implemented once in a unit-tested calculation engine, every default is documented with its rationale on the methodology page, and every guide is checked against cited primary sources (FTC, CFPB, Federal Reserve) before publishing.
We build and maintain the tested calculation engine behind every number on this site, document our full model and assumptions publicly, and cite primary sources — so you can verify our work instead of trusting it.
We write and maintain the calculators, guides, and methodology on Lease vs Buy Car. The job is simple to state and hard to do: make sure every number on this site can be traced to a documented formula, and that the formula is right.
What we check before publishing
- Formulas against the engine's tests. Every calculation on this site runs through one tested calculation engine. Before a page ships, any figure it quotes is reproduced by the engine's automated test suite — nothing is published from a spreadsheet or worked out by hand alone.
- Defaults against the methodology. Each calculator default must have a documented rationale on the methodology page, be labeled as an editable estimate, and match the value the engine's tests actually use.
- Terminology against the glossary. Lease and loan vocabulary is used consistently with the definitions in the glossary, so a term always means the same thing on every page — and matches how your lease worksheet uses it.
The full process — including how corrections are handled and how AI tooling is used in drafting — is in the editorial policy.
Start here
- Lease vs Buy Calculator — the flagship tool: serial leasing vs buy-and-hold over your real horizon.
- Lease vs buy: the full guide — the decision framework behind the calculator.
- How car lease math works — every line of a lease payment, explained.
Spotted an error? Email hello@leasevsbuycar.com — corrections get priority, per the editorial policy.