Revolving Credit

Revolving credit is a form of borrowing in which a lender sets a credit limit and the borrower can draw on it, repay it and draw on it again, as often as they like, without applying for a new loan each time. Interest is charged only on the amount actually outstanding, and the borrower usually has to make at least a minimum payment each month. Credit cards, store cards, home equity lines of credit (HELOCs), personal lines of credit and overdraft facilities are all revolving credit.

In US law revolving credit is called open-end credit, in contrast with closed-end credit such as a car loan or an installment plan, which has a fixed amount and schedule. Businesses use the same structure in the revolving credit facility, or "revolver", a committed bank line that companies draw on to manage working capital.

Revolving credit works like a refillable water jug at the office. The jug holds a set amount, your limit. You can pour out as much as you need, and whenever you pour some back in, that space becomes available to use again. You only pay rent on the water that is out of the jug, not on the full jug.

A normal loan is more like a single bottle: you get it once, drink it, and pay it back on a schedule, and when it is gone you need to ask for another. The jug's flexibility is the attraction, and also the risk, because it never forces you to empty your debt.

US Regulation Z defines open-end credit as a plan under which the creditor reasonably expects repeated transactions, may charge a finance charge on the unpaid balance from time to time, and generally restores available credit as the balance is repaid (12 CFR 1026.2(a)(20)). In practice:

• The limit. The lender sets a maximum based on income, credit score and, for secured lines, collateral such as home equity. It can raise or cut the limit later.
• The billing cycle. Each month a statement shows the balance, interest charged, the minimum due and the due date.
• Interest. Rates are usually variable, tied to a benchmark such as the US prime rate, and are disclosed as an APR. Cards often waive interest on purchases if the full balance is paid during the grace period.
• Repayment. The borrower can pay anything from the minimum to the full balance; repaid amounts become available again.

A charge card looks similar but requires full payment each cycle, so it does not revolve. An overdraft on a current account is revolving credit attached to a deposit account, and a balance transfer moves revolving debt from one line to another.

Because the limit is fixed and the balance moves, lenders and credit scoring models watch how much of the available line a borrower is using. The ratio is:

• $U$ is the utilization rate.
• $B$ is the total revolving balance reported.
• $L$ is the total credit limit across the borrower's revolving accounts.

Worked example: a borrower with two cards, limits of $3,000 and $7,000, and balances of $1,500 and $1,000 has $U = 2{,}500 \div 10{,}000 \times 100\% = 25\%$. If the issuer of the second card cut its limit to $2,000, the same balances would give $2{,}500 \div 5{,}000 = 50\%$, which scoring models generally treat as higher risk. FICO, the most widely used US score, states that "amounts owed", which includes utilization, makes up about 30% of its score, second only to payment history. Utilization is reported on the borrower's credit report each month.

For companies, a revolving credit facility is a committed line from one bank or a syndicate of banks for a fixed term, often several years. The borrower pays interest on drawn amounts and a commitment fee on the undrawn part, and must meet financial covenants. Revolvers back up commercial paper programmes, smooth seasonal cash needs and give corporate treasury teams a liquidity buffer for liquidity management. In a crisis companies tend to draw their revolvers at once, as many did in March 2020, which shifts credit risk and funding pressure to banks. Under Basel III, banks must hold liquidity against the chance that committed lines are drawn.

US households owed about $1.35 trillion in revolving consumer credit, mostly on credit cards, in the second quarter of 2026, according to the Federal Reserve's G.19 consumer credit release. In the US, the Truth in Lending Act and the Credit CARD Act of 2009 govern disclosure, statement timing, rate increases and the allocation of payments on card accounts; the UK regulates running-account credit under the Consumer Credit Act and the FCA's rules on persistent card debt.

The main risk of revolving credit is that it has no end date. A borrower who pays only the minimum can carry a balance for years at a high rate, and limits can be cut when conditions worsen, just when the line is most needed. In the wider economy, rapid growth in revolving balances is watched as a sign of household stress and of credit expansion. For lenders, card receivables are often funded through securitization, linking consumer borrowing to capital markets.

• Federal Reserve — Consumer Credit G.19
• 12 CFR 1026.2 — Definitions and rules of construction (Regulation Z)