Installment loans are legal in Oklahoma, and the most expensive kind is capped at 17% interest per month, roughly 204% APR. That ceiling comes from the Oklahoma Small Lenders Act (59 O.S. §§ 3150 to 3150.27). The law replaced the state's payday lending rules with small loans repaid in equal payments.

Larger consumer loans fall under a second law, the Uniform Consumer Credit Code in Title 14A. The Oklahoma Department of Consumer Credit (OKDOCC) licenses lenders under both laws and takes complaints online or at 405-521-3653.

Two laws, two kinds of lender

Small loans. Under the statute Justia hosts, a small loan must be unsecured, meaning no car or other property backs it. It must also be fully paid off by its last payment, run 60 days to 12 months, and allow early payoff with no penalty. A lender cannot make the loan if the monthly payment would exceed 20% of your verified gross monthly income.

According to law firm Hudson Cook, a borrower can owe no more than $1,500 across all small lenders combined. That figure is adjusted for inflation, and OKDOCC's license page does not list the current number. Lenders must check a state database before lending, and you can cancel through the next business day. This is also what replaced Oklahoma payday loans in August 2020.

Supervised loans. Any consumer loan charging more than 10% a year counts as a "supervised loan." The lender must hold a Supervised Lender license, and OKDOCC's roster showed 1,309 active licensees as of September 17, 2026. On loans of $3,000 or less, Title 14A allows a finance charge plus a monthly handling charge of up to $29.70 on balances over $1,350, per the statute text on Justia. OKDOCC resets many of the Code's dollar figures for inflation, most recently effective July 1, 2025.

Oklahoma's small-loan figures at a glance

Rule Small Lenders Act loan
Maximum owed across all lenders $1,500 (CPI-adjusted; current figure not published on OKDOCC's page)
Interest cap 17% per month, about 204% APR
Term 60 days to 12 months
Payment limit 20% of gross monthly income
Returned-payment fee $25 (per DebtHammer, not the statute)
Rollovers Not addressed in our sources; loans must be fully paid off in equal installments

Why the 6% usury rate doesn't apply

Oklahoma's default interest rate is 6% a year. Loans made under the Consumer Credit Code are exempt from it, FindLaw notes, so the state has no usury cap that shuts high-cost installment lending down. It limits that lending through licenses instead.

Our sources do not say whether lenders serving Oklahoma use bank partnerships or tribal status to charge above these caps. The practical check is the license. Before you borrow, look the lender up on OKDOCC's public roster. A lender that isn't licensed there is operating outside these rules.

Cheaper options

The sources behind this guide do not cover credit union payday-alternative loans or Oklahoma assistance programs, so we can't give their terms here. Ask any credit union you belong to what it offers before taking a loan priced near 204%.

If you're buying a house soon

An underwriter will see the loan's payments as recurring withdrawals on your bank statements and will usually ask you to explain them in a short written letter. While the loan is open, its monthly payment counts in your debt-to-income ratio, the share of your income that goes to debt. How much that matters depends on your lender.

Oklahoma lets you pay off a small loan early with no penalty. Paying it off before you apply removes the payment from that ratio. The payoff itself will still appear as a large withdrawal, so if you're already under contract, tell your loan officer before you move the money and keep the paid-in-full letter.