Credit Card Interest Rate Cap at 10 Percent: Unintended Costs for Borrowers

Melissa Koide leads FinRegLab, a Washington-based nonprofit that evaluates new financial-technology tools to guide policymakers. She previously served as a deputy assistant secretary at the Treasury Department.

Bipartisan Momentum to Cap Credit Card Interest Rates

A bipartisan group in Congress has floated a plan to set card annual percentage rates at a 10 percent ceiling. One prominent proposal is the End Credit Card Interest Rate Gouging Act, introduced by Sen. Bernie Sanders and Sen. Josh Hawley, with supporters pointing to today’s high interest charges as a growing burden for households.

As proposed, the policy would make it unlawful for covered card issuers to charge interest above the 10 percent cap on consumer credit card balances. If such a cap were enacted, oversight would likely run through existing financial regulators that already supervise card issuers and consumer credit compliance, with enforcement tools that can include supervisory findings, required remediation to affected customers, and civil penalties for violations.

With household budgets under pressure and prices still climbing, the idea’s appeal is obvious. Yet well-meaning proposals can miss the mark—especially in lending markets, where one-size-fits-all rules often hurt the borrowers least able to absorb the impact. Supporters argue a cap would curb what they view as excessive pricing and provide immediate relief to people carrying balances; critics counter that a hard ceiling can push lenders to restrict credit, add or raise fees, or steer borrowers to less transparent products.

For now, the idea remains a proposal rather than settled law. Any cap would need to move through committees, pass both chambers of Congress, and be signed by the president, and the practical implementation timeline would depend on how the final legislation is written and how quickly regulators and issuers could operationalize the changes.

A uniform ceiling can lower interest costs for some borrowers while simultaneously shrinking access and shifting risk into fees, lower limits, or alternative lenders for others.

Credit Cards and Everyday Resilience

For many families, credit is a practical lifeline that supports financial resilience and mobility. A strong credit history can determine whether you can rent an apartment, activate mobile service, and ultimately qualify for a mortgage.

Cards also help cover surprise expenses—an urgent auto repair or a medical bill—without emptying savings or resorting to a payday lender. For millions living paycheck to paycheck, responsible access to revolving credit can spell the difference between a setback and a crisis.

In this context, the annual percentage rate is the interest cost of borrowing on a card, expressed as a yearly rate; for revolving balances, that rate translates into the interest many borrowers pay when they do not pay in full. Compared with typical market pricing—where many cards charge interest in the high teens to the high 20s—a 10 percent rate would generally be considered favorable for consumers who carry balances. The catch is that a low rate only helps if you can still qualify for the card and keep a usable credit line.

Banking Data and Smarter Underwriting

Affordability is about access as much as price. Over the past decade, lenders have built far more nuanced ways to gauge credit risk than a score alone.

With a customer’s permission, banking transactions reveal income stability and payment patterns that a score may miss—especially for younger applicants, newcomers to credit, and people rebuilding after hardship. Paired with machine learning, these signals can surface lower-risk applicants who might have been declined by traditional underwriting.

Credit limits, however, are not set by salary alone. Issuers typically look at income and expenses (often through a debt-to-income lens), credit scores and history, existing credit lines and utilization, recent delinquencies, and how long an account has been open—along with the issuer’s own risk and profitability targets. For someone earning $50,000, initial limits often land in the low thousands to mid-five figures depending on those factors, and they can rise over time with consistent on-time payments and modest utilization; they can also be lower if the applicant has thin credit, high existing debt, or recent negative marks.

A rigid 10 percent ceiling would jeopardize that progress. If issuers cannot reflect meaningful risk differences in pricing, many will stop lending or sharply retrench.

Rate Caps and Real-World Trade-Offs

According to an American Bankers Association analysis, imposing a 10 percent limit would likely lead to widespread closures or steep line cuts for many open accounts.

Those estimates are typically derived by comparing today’s distribution of card pricing and expected losses (including charge-offs, servicing costs, and funding costs) against what would be viable under a fixed ceiling. Accounts that are profitable or even break-even at current risk-based pricing can become unsustainable when pricing is forced below the level needed to cover expected losses and operating costs—especially for higher-risk segments. In practice, the impact would not be uniform: subprime and near-prime cardholders are more likely to see denials, closures, or sharp limit reductions; prime cardholders may be more likely to keep access and, if they carry balances, benefit from lower interest; and small business cards could face tighter underwriting and lower lines if issuers cannot price for volatility in early-stage cash flow.

For a household already carrying a balance, the arithmetic of a lower rate looks attractive: a $3,000 revolving balance at 25 percent interest accrues about $62.50 in interest per month, while the same balance at 10 percent accrues about $25. But a cap can change more than the rate. If a borrower loses access entirely, gets a much smaller credit line, or faces higher fees or fewer protections in alternative products, the wallet-level outcome can worsen even if the posted interest rate is lower.

When mainstream credit contracts, demand does not vanish—it migrates to payday outlets and other high-cost alternatives with fewer protections, worsening rather than easing affordability. Mitigation strategies that preserve access while improving affordability tend to be more targeted: promoting safer, lower-cost small-dollar credit options; encouraging clearer disclosures and comparability; supporting responsible use of cash-flow data to broaden approvals for lower-risk borrowers; and addressing fees and practices that drive costs without eliminating risk-based pricing altogether.

Small Businesses Depend on Flexible Credit

The damage would be especially sharp for small business owners and entrepreneurs, for whom workable credit is the backbone of day-to-day operations and growth. Federal Reserve survey data show that about 58% of small firms rely on cards as a financing source. Early on, before a track record unlocks bank loans, a business card can be the difference between seizing an opening and watching it slip away.

Curtailing that access does more than inconvenience owners. The effects ripple to employees, suppliers, and communities that depend on the activity those firms generate.

A Better Path to Reduce Credit Costs

Pursuing cheaper borrowing is the right goal and merits serious policy work. Measures that can help consumers and small businesses compare options and obtain financing on safer terms include:

• Better underwriting.
• Clear standards.
• Greater transparency from credit card companies.

These measures are less simple than a flat cap, but they are more likely to improve affordability while preserving access for those who need it most.