Nearly every licensed consumer loan in Mesa is shaped by one statute. Understanding Arizona’s 36%/24% rate cap explains why small loans and larger ones are priced so differently, and gives you a concrete number to check any offer against.
Quick answer: Arizona caps consumer lender interest at 36% a year on a loan's first $3,000, and 24% a year on any amount above $3,000, under ARS § 6-632. Licensed lenders must stay within this cap or forfeit their right to collect interest.
The tiered formula
Under Arizona Revised Statutes § 6-632, a licensed consumer lender may charge up to 36% annual interest on a loan’s original principal up to $3,000. For a loan larger than $3,000, the lender may charge 36% on the first $3,000 and 24% on the portion above that. The same tiered structure applies to revolving credit accounts, meaning a Mesa borrower with a larger balance benefits from a lower blended rate on the excess.
Why the cap is tiered instead of flat
A flat rate would make very small loans unprofitable to originate, since fixed underwriting and servicing costs don’t shrink with loan size. Arizona’s tiered structure lets a lender charge more on the first, riskiest $3,000, while capping the rate lower on larger amounts where fixed costs matter less per dollar borrowed.
How this replaced payday lending
Before 2010, payday lenders operated under a separate, temporary exemption from this exact cap. Once that exemption expired, the 36%/24% structure became the ceiling for essentially all small consumer loans in the state, which is precisely why the old payday model, dependent on rates several times higher, could no longer legally operate.
The penalty for exceeding the cap
Arizona takes overcharging seriously. Under the state’s broader usury framework, a lender that charges more interest than the law allows forfeits its right to collect any interest on the loan at all, not just the excess. This gives licensed lenders a strong incentive to stay within the cap and gives borrowers a real remedy if one doesn’t.
What falls outside this specific cap
National banks, federal savings associations, and federally insured credit unions are largely exempt from Arizona’s state interest rate limits under federal banking law, meaning they can set rates under their own federal framework. Auto title loans also follow a separate statute with different math, covered in more detail elsewhere in this guide.
Using the cap when you shop for a loan
Ask any Mesa lender for the loan’s APR in writing, and check it against the $3,000 breakpoint: does the rate on the portion above $3,000 actually drop to 24%, or is the lender charging 36% across the board? A lender unwilling to break this down, or one licensed outside Arizona’s normal consumer-lender framework, deserves extra scrutiny before you sign.
Checking your own loan against the tiers
To check whether a Mesa lender is following the tiered cap, ask for a breakdown of the finance charge by balance tier rather than a single blended number. A transparent lender can show you the 36% portion and the 24% portion separately, adding up to the total finance charge. If a lender can’t or won’t break this down, that’s worth following up on before you sign.
A note on annual versus per-loan cost
Because the cap is expressed as a yearly rate, a loan repaid faster than a year costs proportionally less in total dollars even at the same rate. A shorter, well-planned loan term keeps the total dollar cost lower for the same principal, which is worth weighing against a longer term that might feel more manageable month to month but ultimately costs more overall.
FAQ
What’s the maximum interest rate on a $2,000 Arizona loan?
Up to 36% a year, since the entire amount falls within the first $3,000 tier.
What about a $5,000 loan?
36% on the first $3,000 and 24% on the remaining $2,000, blended across the balance.
What happens if a lender charges more than the cap allows?
The lender forfeits its right to collect any interest on the loan, not just the amount above the cap.
Does this cap apply to banks and credit unions?
National banks and federally insured credit unions operate under separate federal frameworks and aren’t bound by this specific state cap.
This article is for educational purposes only and is not financial advice. Loan amounts, fees, and laws can change, so verify current rules with the Arizona Department of Insurance and Financial Institutions (DIFI) at difi.az.gov/complaints and confirm any lender is licensed before you borrow.