Concentration limits and cross-aging: two clauses that shrink your funding without warning

You can have a facility with a generous advance rate, a fair discount, and far less funding available than you expected. Two eligibility clauses are usually the reason, and both are standard rather than predatory.

Concentration limits

A concentration limit caps how much of your funded receivables can come from any one customer, expressed as a percentage of the total ledger. Everything above the cap becomes ineligible — the invoices still exist, the factor just will not fund them.

The logic is straightforward. A factor advancing against a ledger where most of the balance sits with one customer is not diversified; it is exposed to one company. The limit protects the factor, and to be fair to it, the exposure it is worried about is your exposure too.

Illustrative only — your ledger is $400,000. One customer accounts for $180,000, which is 45%. The facility carries a 30% concentration limit, so eligible receivables from that customer are capped at 30% × $400,000 = $120,000. The remaining $60,000 is ineligible. At an 85% advance rate that is $51,000 of funding you had counted on and will not receive.

The trap inside this: the cap is a percentage of the total ledger, so it falls when the ledger falls. Bill less overall and your best customer's allowance shrinks with it, exactly when you need cash most. Work an example on your own numbers at your slowest month, not your busiest.

Some points worth negotiating:

• A higher limit for named customers with strong credit — government agencies and investment-grade names are often given special treatment.
• A dollar carve-out for a specific account rather than a percentage.
• Advance notice before a limit is reduced.

Cross-aging

Cross-aging, sometimes called the taint rule, works differently and catches more people out. If more than a set proportion of a customer's total balance goes past a defined age, the entire balance from that customer becomes ineligible — including invoices that are perfectly current.

Illustrative only — a customer owes you $100,000 across four invoices. One of them, for $30,000, is 95 days old because of a dispute over a delivery. That is 30% of the balance, and your agreement has a 25% cross-aging threshold. All $100,000 becomes ineligible. At an 85% advance, $85,000 of borrowing base disappears over a $30,000 problem.

The reasoning is that a customer refusing to pay one invoice may have reasons that apply to the others too. The reasoning is not unsound. The effect is brutal, because the trigger is a ratio and a single large stale invoice moves the ratio fast.

The clauses that stack on top

Cross-aging and concentration rarely travel alone. Read the eligibility section for:

How to protect yourself

1. Ask for your own numbers before you sign. Give the factor a current aging report and ask it to calculate today's eligible base and today's availability. Not the advance rate — the dollars.
2. Run the same calculation on your worst month from last year. That is the month you will actually need the facility.
3. Ask what the cross-aging threshold is and what date it measures from. Invoice date and due date can be 30 days apart.
4. Ask who can change these limits and with what notice. Most agreements let the factor adjust eligibility at its discretion. Ask for notice provisions in writing.
5. Fix disputes fast. Under cross-aging, one unresolved dispute is not an isolated problem. It is a switch that turns off funding for that entire customer.

The framing that helps

Advance rate is a headline. Availability is the number that pays your staff. Availability is the eligible base multiplied by the advance rate, minus reserves and any minimum reserve floor, and every clause in the eligibility section reduces the eligible base. When you compare facilities, compare availability on your actual ledger. Two factors quoting the same advance rate can differ by tens of thousands of dollars once their eligibility rules are applied to your real customers.

When both clauses fire at once

Illustrative only — the same $400,000 ledger and the same customer at $180,000, with a 30% concentration limit and a 25% cross-aging threshold.

One invoice for $30,000 goes to 95 days. That is 16.7% of the customer's balance, under the threshold, so cross-aging does not fire. The concentration limit still caps eligible receivables from that customer at $120,000, and with $220,000 from everyone else the eligible base is $340,000, giving $289,000 of availability at an 85% advance.

Now make the disputed invoice $50,000 instead. That is 27.8% of the balance, over the threshold, so the entire $180,000 becomes ineligible. The eligible base falls to $220,000 and availability to $187,000. The concentration limit is now irrelevant, because there is nothing left from that customer for it to cap.

$102,000 of availability turned on whether one disputed invoice was $30,000 or $50,000. That sensitivity is the thing to model, and it is why a single customer dispute is a funding event rather than an accounts problem.

The dispute clock

Because cross-aging is a ratio against age, what protects you is speed, and speed is a process rather than an intention.