State rules
Washington auto loan rules
Washington has 281 Census places covered on AutoLoanable, with a combined estimated population of 5,126,107. Vehicle financing in Washington is governed by state law — the interest-rate caps, title-lending rules, sales-finance licensing and the regulator that oversees them. The sourced figures below apply to every car loan made to a borrower in the state.
The lowest rates are only available to the most qualified applicants.
Advertising disclosure: AutoLoanable may receive a referral fee if you apply through the link above. That fee does not change the rate you are offered, and it does not change our content. We are not a lender. Read the full disclosure.
Key rules for car buyers in Washington
| Rule | Detail | Source |
|---|---|---|
| Maximum legal interest rate (usury cap) | 12% per annum, or four points above the Federal Reserve bill rate, whichever is higher (RCW 19.52.020) Source says: any rate of interest shall be legal so long as the rate of interest does not exceed the higher of: (a) Twelve percent per annum |
Washington State Legislature (RCW) as of 2026-09-17 |
| Vehicle title loan status | No title-loan-specific statute; a vehicle-title-secured loan made by a licensed consumer loan company is capped at 25% per annum simple interest, and check cashers may not accept title to property as collateral for small loans. Source says: "Every licensee may: (1) Lend money at a rate that does not exceed twenty-five percent per annum as determined by the simple interest method of calculating interest owed" License category: consumer loan company license (Consumer Loan Act, RCW 31.04). |
Washington State Legislature — RCW 31.04.105 as of 2026-09-17 |
| Sales finance / installment lender licensing | Consumer Loan Company license required (Consumer Loan Act, RCW 31.04.035) Source says: No person may engage in any activity subject to this chapter without first obtaining and maintaining a license in accordance with this chapter. Motor-vehicle retail installment sales are separately governed by the Retail Installment Sales Act (Retail Installment Sales of Goods and Services) (chapter 63.14 RCW). |
Washington State Legislature (RCW) as of 2026-09-17 |
| State lending regulator | Washington State Department of Financial Institutions (DFI) Source says: DFI licenses and regulates financial institutions and service providers in Washington. |
Washington State Department of Financial Institutions (DFI) as of 2026-09-17 |
| Sales tax on vehicle purchases | 6.5% state rate; local rates additional Source says: "The state tax rate is 6.5%. The local tax rate varies by city and/or county." |
Washington State Department of Revenue as of 2026-09-17 |
How to use these rules
-
Check the ceiling before you compare offers
If a quoted APR looks extreme, compare it against the Washington cap above — and note that a specific statutory exemption can apply to a particular product.
-
Verify the lender is licensed
Use the regulator named in the table to confirm the lender or sales-finance company may legally serve borrowers in the state.
-
Know what is secured against your car
A vehicle title loan is secured by the car itself. If the state permits it, understand the repossession terms before you sign anything.
-
Budget for tax and fees separately
Sales tax and title fees are financed along with the car, so they raise the amount you borrow — and therefore the interest you pay on them.
Cities in Washington
We cover 281 Census places in Washington.