Can a lender charge a Colorado borrower triple-digit interest on a small installment loan? A licensed lender cannot. Colorado caps the rate on a sliding scale that starts at 36% on the first $1,000 and falls as the balance grows. The unsettled part, as of late September 2026, is whether that cap reaches out-of-state banks that partner with online lenders.

An installment loan here means a personal loan repaid in fixed payments over months. These loans are often marketed to borrowers with bad credit. This blog is not a lender and recommends none.

How Colorado's rate cap works

The governing law is the Uniform Consumer Credit Code (UCCC), found in Title 5 of the Colorado Revised Statutes. The Colorado Attorney General's Consumer Credit Unit administers it.

Any consumer loan with an APR above 12% is a "supervised loan." A company that makes, services or buys such loans needs a Supervised Lender's License, with a separate license for each branch. Licenses issued in 2026 expire July 1, 2027.

The cap works like tax brackets. Each slice of the unpaid balance has its own ceiling. On a $2,000 loan, the first $1,000 can carry up to 36% and the second $1,000 up to 21%, according to the Consumer Credit Unit.

Item Colorado rule
First $1,000 of unpaid balance Up to 36%
$1,000.01 to $3,000 Up to 21%
Above $3,000 Up to 15%
APR that triggers licensing Above 12%
General ceiling on written contracts (§ 5-12-103) 45% per year
Fees, minimum and maximum terms, rollovers Not stated in the sources we reviewed; ask the Consumer Credit Unit

The fight over out-of-state banks

Some online lenders partner with banks chartered in states that allow higher rates. Federal law normally lets a bank "export" its home-state rate. This setup is often called rent-a-bank.

In 2023, HB23-1229 used a federal opt-out to apply Colorado's caps to loans from out-of-state, state-chartered banks. Only Colorado, Iowa and Puerto Rico have used that opt-out. The rule covered loans made or renewed from July 1, 2024, according to Venable LLP.

Banking trade groups sued, and a federal judge blocked the rule in 2024. A three-judge panel reversed that 2 to 1 in November 2025. On April 2, 2026, the full 10th Circuit vacated the panel ruling and put the block back in place. The full court heard argument on August 18, 2026. As of Ballard Spahr's September 24, 2026 update, no decision had been issued.

The sources we reviewed do not cover tribal lenders.

What to watch for: a small loan priced above the tiers in the table. Ask the lender whether it holds a Colorado Supervised Lender's License. You can check with the Consumer Credit Unit at uccc@coag.gov or (720) 508-6010.

Not the same as a payday loan

Colorado regulates payday loans separately. Since Proposition 111 in 2018, they have been capped at 36% APR. Our page on Colorado payday loan rules covers them.

The brief also asked about cheaper options, such as credit union payday-alternative loans and Colorado assistance programs. Our sources do not cover these, so we cannot name them here.

If you are closing on a house soon

An underwriter who reviews your bank statements will see the loan deposit and each monthly payment. Expect a request for a letter of explanation covering what the loan was for and whether it is still open.

If the loan is open, the monthly payment usually counts in your debt-to-income ratio, the share of your income that goes to debts. A small payment can still push a borderline file over the lender's limit.

Paying it off before you apply removes the payment from that ratio. Once you are under contract, though, moving money is its own risk. Ask your loan officer first, and keep the payoff letter and the statement that shows the zero balance. How each lender treats these loans varies, so ask yours directly.