What Is a Revolver? Revolving Credit Facilities Explained

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A revolver is a revolving credit facility: a committed line of credit that lets a borrower draw funds up to a set limit, repay them and borrow again as often as needed until the facility matures. In corporate finance, “the revolver” usually means a company’s bank revolving credit facility. In consumer credit, the word can also describe a person who carries a balance from month to month on a credit card or other revolving account instead of paying it off in full.

What Is a Revolver?

The capacity “revolves”: each repayment frees up room that can be borrowed again. A term loan or mortgage, by contrast, pays out once and is repaid on a fixed schedule, and money repaid cannot be reborrowed.

The two uses describe the same mechanism from different angles. A company “has a revolver” (the facility), while a cardholder who keeps a running balance “is a revolver” (the borrowing behavior). Card issuers distinguish revolvers, who pay interest, from transactors, who pay in full each month, because interest income comes from carried balances.

How a Revolver Works

A revolving credit facility is set out in a credit agreement between the borrower and a bank or a group of banks. The agreement specifies:

• Commitment amount: the most the borrower can have outstanding at once.
• Drawn balance: the amount currently borrowed. A “revolver draw” is a borrowing against the facility.
• Availability: the commitment minus the drawn balance (and minus any letters of credit issued under the facility).
• Pricing: a variable rate on drawn amounts, commonly quoted as a benchmark such as SOFR plus a spread in basis points, and a commitment fee on unused amounts.
• Maturity: the date the facility ends and any outstanding balance is due.
• Covenants and conditions: financial tests and reporting requirements the borrower must meet to keep drawing.

Some revolvers are asset-based. In a receivables or inventory revolver, availability is capped by a borrowing base, a percentage of eligible accounts receivable or inventory, so the usable amount can be below the headline commitment.

Consumer revolving accounts follow the same logic with simpler terms. A credit card has a credit limit, a variable APR and a minimum monthly payment calculated from the balance and interest rather than fixed installments, and it can stay open indefinitely while in good standing.

The Revolver in a Financial Model

In a three-statement model, the revolver often serves as the plug. If projected cash falls below a minimum balance, the model draws on the revolver, and surplus cash repays it first. Because revolver interest depends on the balance, and the balance depends on cash flow after interest, the calculation is circular. Modelers handle this with iterative calculation, an average-balance shortcut or a circularity switch. A drawn revolver balance counts as debt in net debt and enterprise value.

Why Companies Use a Revolver

A revolver gives a company cash on demand without raising money each time. Common uses include:

• Funding payroll and other day-to-day operating costs when receipts and payments don’t line up.
• Covering seasonal inventory build-ups.
• Serving as a liquidity backstop that may sit largely undrawn.
• Bridging short-term needs before a longer-term financing.

Private equity sponsors typically pair a revolver with term debt in a leveraged buyout, giving the acquired company working capital flexibility without the sponsor injecting more equity. Whether revolver proceeds can fund a particular purpose, such as repaying bonds, depends on the use-of-proceeds and other restrictions in the credit agreement.

Example of a Revolver

Hypothetical example; terms are illustrative, not any lender’s pricing.

A manufacturer has a $50 million revolver. Assume an all-in rate of 7% a year on drawn amounts, a 0.30% annual commitment fee on undrawn amounts, and simple quarterly accrual (one quarter = 0.25 years).

1. The company draws $20 million. Availability falls to $30 million.
2. Quarterly interest on the drawn balance: $20,000,000 × 7% × 0.25 = $350,000.
3. Quarterly commitment fee on the undrawn balance: $30,000,000 × 0.30% × 0.25 = $22,500.
4. After collecting receivables, the company repays $10 million. The drawn balance drops to $10 million and availability rises to $40 million, which can be drawn again before maturity.

Revolving vs. Non-Revolving Debt

Underwriting standards are often similar for both, though revolving lines can involve a simpler application, especially for consumers. Non-revolving credit typically carries lower interest rates. For a company, the revolver’s cost feeds into its overall cost of debt and therefore its WACC.

Revolving accounts can be secured or unsecured. A home equity line of credit is secured by home equity, and asset-based corporate revolvers are secured by receivables or inventory. Most credit cards are unsecured.

Limitations of a Revolver

• Variable rates: borrowing costs move with market rates, which makes interest expense less predictable than on fixed-rate debt.
• Cost of unused capacity: commitment fees mean a company pays for liquidity it may never draw.
• Conditional access: breaching a covenant or a shrinking borrowing base can cut availability exactly when cash is tight.
• Maturity risk: the facility must be renewed or refinanced, or the balance repaid, at maturity.
• Overborrowing: for consumers, low introductory rates and rewards encourage carrying balances, and paying only the minimum keeps interest accumulating.

FAQs

The Bottom Line

A revolver suits companies that need cash on demand for payroll, seasonal inventory or a liquidity backstop, and consumers who use credit cards or home equity lines. The flexibility has costs: variable rates, fees on unused capacity, covenants that can cut access when cash is tight, and maturity risk. Borrowers who carry balances, especially by paying only the minimum, keep accumulating interest.