In corporate finance, a revolver is a revolving credit facility: a loan agreement that lets a company borrow up to a set limit, repay some or all of the balance, and borrow again without going back to the lender for a new deal. It works like a corporate credit card. As the borrower pays the balance down, the available credit refreshes, and the company can draw on it again whenever cash is needed.
Because of that reload feature, revolvers sit at the center of how large companies manage day-to-day liquidity, seasonal cash swings, and unexpected needs.
How the Facility Works
A revolver starts with a commitment. A lender, or for larger companies a syndicate of banks acting together, agrees to make a specific dollar amount available for a defined period. The borrower then takes funds in portions called drawdowns. Each drawdown reduces the remaining credit by the amount borrowed. If a company has a $100 million revolver and draws $25 million, $75 million is still available.
The defining feature is what happens on repayment. When the company pays back some or all of the borrowed amount, that capacity returns to the credit line immediately. The company can cycle through borrowing and repaying as many times as it needs over the life of the facility.
Most corporate revolvers run for three to five years. At maturity, the company either refinances into a new facility or pays off whatever balance remains. During that window the total commitment stays fixed, and the borrower controls how much of it to use at any given time.1Cornell Law School Legal Information Institute. Revolving Credit Facility
How a Revolver Differs From a Term Loan
The easiest way to understand a revolver is to compare it with a term loan. A term loan is a one-time disbursement with a fixed repayment schedule. Once the borrower receives the money, it pays the balance back in regular installments, and the available amount shrinks permanently with each payment. A revolver has no principal amortization. The company pays a fee to keep the line open, borrows when it needs cash, and repays when cash comes in.
Most large corporate credit packages include both. The term loan provides a predictable chunk of long-term capital, often for something like an acquisition, while the revolver handles the ongoing ups and downs of daily operations. The revolver is the company’s checking account buffer. The term loan is more like the mortgage.
What a Revolver Costs
A revolver has two main costs: interest on what you borrow and a fee for the privilege of having the rest available.
Interest applies only to the outstanding balance, the amount actually drawn. The rate is almost always floating. Since the transition away from LIBOR, the standard benchmark for syndicated loans has been the Secured Overnight Financing Rate (SOFR), published daily by the Federal Reserve Bank of New York. The borrower pays SOFR plus a fixed margin, often called the spread, that reflects the company’s credit risk. A healthy investment-grade company might pay SOFR plus 100 basis points; a riskier borrower could see SOFR plus 250 or more.2U.S. Securities and Exchange Commission. First Amendment to ABL Revolving Credit Agreement
The second cost is the commitment fee, charged on the undrawn portion of the facility. This compensates lenders for keeping capital reserved even when the borrower isn’t using it. Commitment fees typically range from 0.25% to 0.50% per year, though they can climb higher for weaker credits. A $200 million revolver sitting completely undrawn at a 0.25% commitment fee costs $500,000 a year to maintain. That sounds like a lot until you consider what it buys: guaranteed access to $200 million on short notice.
Some facilities also carry administrative fees, agent fees paid to the bank running the syndicate, and utilization fees that kick in when the borrower draws above a certain percentage of the total commitment.
What Companies Use Revolvers For
The most frequent use is smoothing out working capital gaps. A retailer buying inventory in September for the holiday season may not collect revenue from those sales until January. The revolver bridges the timing mismatch. The company draws to pay suppliers, then repays once customer payments arrive.
Revolvers also function as a financial safety net. Many companies keep the revolver fully undrawn as a signal to investors, rating agencies, and counterparties that they have immediate access to liquidity if something goes wrong. An undrawn revolver on the balance sheet is essentially an insurance policy against cash flow disruptions.
Companies sometimes tap the revolver for smaller acquisitions or capital expenditures that don’t justify the time and expense of issuing bonds. The revolver lets them act quickly, then refinance into longer-term debt later if the amount warrants it.
Sublimits: Letters of Credit and Swingline Loans
A revolver usually includes built-in sublimits for two specialized features. Both reduce the borrower’s available credit even though they work differently from a standard drawdown.
Letters of Credit
A letter of credit is a guarantee from the lender that it will pay a third party on the borrower’s behalf if certain conditions are met. Companies use them constantly in international trade, real estate leases, and insurance arrangements. When a bank issues a letter of credit under the revolver, the amount immediately reduces available credit, even though no money has actually left the bank. The lender has committed those funds and must honor the letter if it’s called. Letter of credit sublimits typically range from 20% to 50% of the total facility size.
Swingline Loans
A swingline loan is a small, quick-draw feature that lets the borrower access a limited amount of cash on the same day it makes the request. Standard drawdowns require one to three business days of advance notice, which is fine for planned needs but too slow when a payment is due in hours. The swingline sublimit, usually a fraction of the total commitment, covers those urgent, short-duration cash needs. Swingline balances, like letters of credit, count against overall revolver availability.
Asset-Based Revolvers and the Borrowing Base
Not every revolver works the same way. In an asset-based lending facility, the amount the company can actually borrow fluctuates based on the value of its collateral rather than staying fixed at the full commitment amount.
The central concept is the borrowing base. The lender assigns advance rates to different categories of the borrower’s assets, and the sum of those calculations determines how much credit is available at any given time. Accounts receivable, being the most liquid, typically carry the highest advance rates. Inventory advance rates depend on how quickly the goods can be sold: finished products get a higher rate than raw materials or work in progress.3Office of the Comptroller of the Currency. Asset-Based Lending – Comptrollers Handbook
The borrower submits a borrowing base certificate, usually weekly or monthly, sometimes daily, reporting the current value of eligible collateral. If receivables drop because a major customer paid slowly, the borrowing base shrinks, and the company may need to repay part of its outstanding balance even if it hasn’t breached any other terms. That built-in monitoring gives lenders confidence to extend revolving credit to companies that might not qualify for an unsecured facility, at the cost of heavier reporting for the borrower.
Where the Revolver Sits in the Capital Structure
In most corporate debt structures, the revolver is senior secured debt, with first or near-first claim on the company’s assets if things go badly. In leveraged finance deals, revolvers often hold a super senior position, ranking ahead of even the senior secured term loans and bonds. Banks insist on that priority because the revolver is a shorter-duration facility that needs to remain accessible in good times and recoverable in bad ones.
For secured revolvers, the lender perfects its claim on collateral by filing a UCC-1 financing statement with the appropriate state authority. That public filing puts other creditors on notice that the revolver lender has a security interest in specific assets.4Cornell Law School Legal Information Institute. UCC 9-311 – Perfection of Security Interests in Property Subject to Certain Statutes, Regulations, and Treaties
Unsecured revolvers also exist, but they’re reserved for the most creditworthy borrowers, typically large investment-grade corporations whose financial strength alone satisfies lenders. The trade-off is predictable: unsecured facilities come with wider spreads and tighter covenants because the lender has no collateral to fall back on.
Covenants and What Happens When They Break
Every revolver comes with covenants, contractual rules that restrict what the borrower can and cannot do while the facility is outstanding. Violating a covenant triggers a technical default even if every interest payment is current.
Financial covenants require the borrower to maintain specific metrics. The most common is a leverage ratio cap: total debt divided by earnings (usually EBITDA) must stay below an agreed ceiling, such as 3.5 times. Another standard test is the interest coverage ratio, requiring operating earnings to exceed interest expense by some minimum multiple, often 2.0 to 3.0 times.
Affirmative covenants list things the borrower must do: deliver audited financial statements on time, maintain adequate insurance, pay taxes, and comply with applicable laws. Missing a filing deadline is one of the most common breaches in practice, and it’s entirely avoidable.
Negative covenants prohibit certain actions without lender consent, such as selling a significant chunk of assets, taking on additional senior debt, or making large distributions to shareholders. The restrictions exist to prevent the borrower from hollowing out the business or subordinating the revolver lender’s position.
Many revolvers, especially in leveraged finance, use springing covenants: financial tests that only activate when the company draws above a specified percentage of the facility, commonly 25% to 40% of the total commitment. If usage drops below that threshold on the next test date, the covenant goes dormant again.
When a covenant breaks, the lender doesn’t automatically seize assets, but it gains the legal right to. The typical first step is a waiver or amendment, where the borrower explains the situation and pays a fee for permission to operate outside the breached covenant temporarily, usually with tighter terms going forward. If the breach is more serious, the parties may enter a forbearance agreement, in which the lender agrees not to accelerate for a defined period while the borrower works to fix the problem. If negotiations fail, the lender can accelerate the loan and declare the entire outstanding balance immediately due. For a company already under stress, acceleration of the revolver can cascade into broader default, because other debt agreements often contain cross-default provisions.
Finding a Specific Company’s Revolver Terms
Public companies that enter into a new revolving credit facility, or materially amend an existing one, must disclose the agreement by filing a Form 8-K with the Securities and Exchange Commission within four business days. The filing must describe the material terms of the facility, including the parties involved, the commitment size, and key conditions.5U.S. Securities and Exchange Commission. Form 8-K General Instructions
The credit agreement itself is usually attached as an exhibit, which is why the full text of many corporate revolvers can be found in the SEC’s EDGAR database. Investors and analysts use those filings to assess a company’s liquidity position, the restrictiveness of its covenants, and the cost of maintaining the facility. A company that suddenly draws its entire revolver, or one whose 8-K reveals an unusually high spread, is sending a signal the market pays close attention to.