Car loan data hub
The numbers behind every deal — taxes, fees, and interest rates — sourced and refreshed every quarter, free for you and for anyone who links to us.
Car sales tax by state
Average rates, dealer doc fee caps and typical ranges, and trade-in tax rules — the out-the-door essentials.
Average APR by state
National averages from Experian and the latest published state-level new and used rates.
Rates by credit score
What each FICO tier pays on new and used cars — and how much a tier move is worth.
Why we publish this data
Calculators are only as good as their inputs. We publish the rates, fees, and rules behind our numbers so you can verify them — and we refresh them quarterly so the data never goes stale. Reporters, bloggers, and finance sites are welcome to cite and link these pages.