What makes a lender reduce, freeze or pull a business line of credit

A line of credit is a commitment with conditions attached, and the conditions are tested continuously by machinery you usually cannot see. Five distinct mechanisms can shrink or stop a line, and they behave very differently.

1. The borrowing base recalculated

On any facility where availability is a formula rather than a fixed number, the line can fall without anyone making a decision. The formula runs, and the answer is lower.

Illustrative only — assume accounts receivable of $400,000, an advance rate of 80% on eligible receivables, and ineligibility rules that exclude invoices over 90 days, the portion of any single customer's balance above a concentration limit, and intercompany billings. Suppose $62,000 is over 90 days, $38,000 exceeds the concentration limit, and $10,000 is intercompany. Eligible receivables are $290,000, and the borrowing base is $232,000.

If the outstanding balance is $260,000, you are $28,000 over. That is an overadvance, and the agreement usually requires you to pay it down immediately.

Nothing went wrong with the business in that example. One big customer got slow and another got large. See advance rate, eligible receivable and concentration.

2. A covenant test failed

Financial covenants are measured on a schedule — quarterly is common — using financials you supply. A coverage ratio, a debt-to-EBITDA ratio, a minimum tangible net worth, a minimum liquidity level. Fail one and the agreement gives the lender rights: to price the loan higher under a pricing grid, to suspend further advances, to accelerate.

Reporting covenants matter just as much and are broken far more often through inattention. Financial statements delivered late, a missing tax return, an unreturned request for an aged receivables report. A technical default on reporting can suspend availability while nothing is wrong with the numbers. See covenant.

3. The scheduled review

Most revolving lines are committed for a defined period and re-underwritten at renewal. At renewal the lender looks at a fresh year of results, the current debt schedule, and the account behaviour, and makes a new decision. Renewal is when a line most commonly gets resized — up as well as down.

Between renewals, many agreements also permit periodic review, and some facilities are payable on demand. A demand facility can be called without any default at all. Whether yours is one is a question with a documentary answer.

4. Something the lender saw

Banks watch the operating account, and several patterns reliably prompt a conversation:

• New daily or weekly debits appearing that are not on the debt schedule, which usually means additional short-term financing was taken. Many agreements prohibit that outright. See stacking.
• Returned items and overdrafts, which speak to liquidity directly. See nsf fee.
• Deposit volume falling well below the level the facility was underwritten against.
• Balances that never come down, which is what a clean-up requirement is designed to test.
• A tax lien or judgment appearing on a public record search. See tax lien.
• Loss of a customer that represented a large share of the receivables the line is secured by.
• Adverse change in the guarantor's personal credit, where the facility is guaranteed.

Many agreements also contain a material adverse change clause, which is deliberately broad. It is invoked less often than borrowers fear and more often than lenders like to describe.

5. A decision that was not about you

Lenders manage portfolios. Concentration limits by industry, by geography, by product; a change in credit appetite after a loss; a shift in funding cost; an acquisition that merges two credit policies. Facilities get repriced, reduced or exited for reasons that have no entry in your file. There is rarely a satisfying explanation available, and the honest framing is that you were part of a category rather than the subject of a judgement.

The clean-up requirement, which is a test rather than a formality

Many revolving facilities require the balance to reach zero for a set number of consecutive days once a year. It is there to establish whether the line is financing a cycle or financing a hole.

Illustrative only — a $250,000 line whose balance never drops below $180,000. The business fails a 30-day clean-up, and what the lender concludes is not that an administrative step was missed. It is that 72% of the line is permanent working capital, which belongs in an amortising term loan with a maturity rather than in a facility priced and reserved as a short-term revolver.

The consequences are predictable: a renewal that cuts the line back toward the genuinely revolving portion, a term-out of the permanent balance, or both. Neither is unreasonable, and both are far easier to handle if you propose them before the renewal than if you receive them at it.

If you can already see that you will not clear the clean-up this year, say so in advance with a plan attached. A borrower who explains a structural mismatch is managing it. A borrower who fails the test quietly is discovered.

What you are owed when it happens

Under the Equal Credit Opportunity Act and Regulation B, adverse action includes a termination of an account or an unfavourable change in its terms, with an important exception where the change affects all or substantially all of a class of the creditor's accounts. Business credit has its own notification rules, which vary with the applicant's revenue — see 12 CFR 1002.9 and the definitions at 12 CFR 1002.2. In some cases the reasons must be given only if you ask, and the request has a deadline. Ask in writing, promptly.

Reducing the odds

Deliver reporting early and completely; late statements cause more trouble than mediocre ones. Keep the outstanding balance moving rather than parked. Tell the lender about a bad quarter before the statements do. Do not take additional financing that debits the operating account without checking the negative covenants first. Watch your own borrowing base monthly, particularly receivable ageing and customer concentration, so you find an overadvance before the lender's system does.

And keep a second relationship warm. A line that gets cut is far less dangerous to a business that already has somewhere else to have the conversation.