The Problem
Your Balance Sheet Looks Great. Your Bank Account Doesn't.
B2B operators on net-30 to net-90 terms have money on the books they can't spend. Most financing options ignore that entirely.
Revenue-Based Lending Misses the Point
Standard business lines size credit off revenue and credit score, not the quality of your receivables. Strong invoices from creditworthy customers should count for more.
Factoring Costs More Than It Looks
Selling invoices to a factor hands over customer relationships and often costs more in effective fees than a properly structured A/R line of credit.
Eligibility Rules Are Rarely Explained
Which invoices count, how aging affects your borrowing base, and how concentration limits work: most operators find out the hard way, mid-application.
What an A/R Line of Credit Actually Is
An accounts receivable line of credit is a revolving facility that uses your open, unpaid invoices as the collateral base rather than relying primarily on trailing revenue, time in business, or a personal credit score. Instead of a flat, fixed limit that stays static for a year, an A/R line moves with your business: as you generate new eligible invoices, your available credit expands, and as those invoices age past a lender's eligibility window or get paid down, the borrowing base contracts accordingly. For a B2B company invoicing on net-30, net-45, or net-60 terms, this structure solves a specific problem: the gap between doing the work and actually collecting cash from a customer.
A conventional business line of credit is underwritten against overall financial strength: revenue, net income, time in business, and the owner's personal credit. An A/R line adds an asset-specific layer on top of that, a "borrowing base," which is the dollar amount a lender is willing to advance against your current pool of eligible receivables. That base is recalculated on a recurring basis, often monthly, using updated aging reports you submit.
How the Borrowing Base Is Built
Conceptually, a borrowing base starts with your total accounts receivable, then subtracts categories of invoices a lender considers "ineligible" for collateral purposes. What's left is the pool of eligible receivables, against which the lender applies an advance rate to determine how much you can actually draw. Ineligible categories commonly include invoices that have aged beyond a set number of days past due, invoices owed by affiliated or related-party entities, invoices tied to contra accounts (where you owe the customer money as well, creating an offset risk), invoices from customers domiciled outside the country if the lender doesn't extend cross-border coverage, and government contracts in some cases, since assignment of government receivables can involve additional legal steps. None of this means those invoices are worthless, only that a given lender won't count them toward your line's collateral base.
Customer concentration is another factor baked into most borrowing base calculations. If one customer represents a large share of your total receivables, a lender will often cap how much of that single customer's invoices can count toward eligibility, even if those invoices are otherwise perfectly current and collectible. The logic is straightforward risk management: if your accounts receivable book depends heavily on one buyer, the lender's collateral is only as sound as that one relationship. Businesses with a diversified customer base, spread across many creditworthy commercial accounts, generally have an easier time maximizing how much of their A/R actually counts.
A/R Line of Credit vs. Invoice Factoring
These two products get confused constantly because they both use receivables as the underlying asset, but the structures are fundamentally different. With an A/R line of credit, you retain ownership of your invoices. You continue to invoice, service, and collect from your own customers, and the lender simply advances funds against a borrowing base calculated from those receivables. It functions like a secured loan: you owe the lender, your customers never know the facility exists (in most non-notification arrangements), and your existing collections process stays intact.
Invoice factoring works differently. In a factoring arrangement, you sell the invoice itself to a third party (the factor) at a discount, and the factor then collects directly from your customer. Depending on the agreement, this can be disclosed (your customer is notified and pays the factor directly) or, less commonly, non-disclosed. Because the factor takes on the collection function and the credit risk on that specific invoice, factoring fees are often structured differently than a line of credit's interest-based cost, and the customer-facing experience changes since your buyer is now interacting with a different entity for payment. For companies that place a high value on controlling the customer relationship and collections process, that distinction alone is often the deciding factor between the two products. For a deeper side-by-side comparison, see our breakdown of an A/R line of credit versus invoice factoring.
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A/R Line vs. a Traditional Revolving Line of Credit
A traditional unsecured or lightly secured revolving line of credit is underwritten primarily off your business's overall financial profile: revenue trends, profitability, time in business, and the guarantor's personal credit. That can work well for companies with steady cash sales or short payment cycles, but it tends to underserve B2B operators sitting on large, high-quality receivables balances, because the credit line rarely scales with invoice volume in real time. An A/R line of credit, by contrast, is built specifically to scale with your invoicing activity. If you land a large new commercial contract and start invoicing a creditworthy customer at higher volume, your borrowing base (and therefore your available credit) can grow relatively quickly, without waiting for an annual renewal or a full re-underwriting cycle. The tradeoff is more ongoing reporting: a traditional line usually asks for periodic financial statements, while an A/R line typically requires regular aging reports and borrowing base certificates to keep the facility current. For a broader comparison of how secured facilities stack up against unsecured options generally, see our guide on secured versus unsecured business lines of credit.
Who Tends to Qualify
A/R lines of credit are built for B2B companies, not consumer-facing businesses, since the collateral is business-to-business invoices owed by other companies rather than cash or card receipts from individual consumers. The strongest candidates invoice creditworthy commercial customers consistently, keep reasonably organized accounting records so an aging report can be produced on demand, and carry a customer base diversified enough that no single account dominates the receivables ledger. Staffing and professional services firms, wholesalers, manufacturers, and trucking or logistics companies show up often because these models naturally generate recurring, documentable B2B receivables on net terms. Businesses with thin invoicing history, heavy reliance on one or two customers, or disorganized books can still qualify, but typically start with a smaller line, a lower advance rate, or a request for additional documentation.
The Application, Documentation, and Advance Rates
The initial application starts with basic business information and a soft credit pull that does not affect your credit score. From there, underwriting centers on a current accounts receivable aging report, which breaks down every open invoice by customer and by days outstanding, plus basic financial statements and a customer concentration breakdown. Once a facility is in place, most A/R lines require an updated aging report and a signed borrowing base certificate on a set cadence, showing your current eligible receivables, the advance rate applied, and the resulting available credit. For a fuller walkthrough, see our guides on the borrowing base certificate and the documentation checklist lenders tend to request.
The advance rate itself is the percentage of eligible receivables a lender will let you borrow against, and it exists because even strong invoices carry some risk of dispute, return, or late payment. It tends to move based on the credit quality of your customer base, how consistently your invoices historically get paid on time, and how clean your aging report looks, and it's applied only after ineligible categories (aged invoices, related-party or contra accounts, and similar exclusions) are stripped out of the base.
Dilution, Concentration Limits, and Notification Terms
"Dilution" refers to anything that reduces the value of a receivable before it's collected in full: returns, discounts, disputes, short-pays, or credit memos issued after the invoice was booked. Lenders track your historical dilution rate closely, since high dilution makes a borrowing base less reliable than the raw invoice totals suggest. Concentration limits deserve equally close attention: if your business grows around a small number of large customers, ask a prospective lender directly how their concentration caps are structured, rather than assuming your full receivables balance will count.
Finally, understand whether a facility runs on a notification or non-notification basis. Non-notification keeps your customers unaware the receivable is pledged as collateral, and you continue collecting and remitting as usual; notification means the lender formally informs your customers, sometimes directing payments to a lockbox. Non-notification arrangements are generally preferred by borrowers who value discretion, but they ask a lender to trust the borrower's internal controls more heavily. Businesses weighing a receivables-based structure against a different collateral type may also want to review our guides on using business assets as collateral and asset-based lending requirements.
