Both invoice factoring and a business line of credit solve the same problem: your customers pay in 30, 45, or 60 days, but payroll and suppliers won't wait. The two tools get you there in fundamentally different ways — one is a sale of an asset, the other is revolving debt — and the right choice depends more on your customers' credit, your growth curve, and your balance sheet than on any single fee number.
This guide compares the two on underwriting, borrowing base, customer involvement, repayment, reusability, collateral, speed, and cost, with a worked cash-gap example you can adapt to your own numbers.
The structural difference: sale vs. revolving debt
Invoice factoring is typically the sale of your unpaid B2B invoices at a discount. Per the Federal Reserve's March 2025 Consumer & Community Context, the factoring provider buys the invoices, contacts the invoiced third party to collect, keeps its financing fee once the invoice is paid, and remits the remainder to you. You get most of the cash up front (the advance rate), and the rest — minus fees — after your customer pays.
Because it's structured as a purchase of receivables rather than an extension of credit, factoring sits partly outside standard lending rules. The CFPB's official commentary to Regulation B notes that factoring is not subject to ECOA/Reg B notification requirements unless credit is extended incident to the arrangement.
A business line of credit is revolving debt: a lender sets a limit, you draw only what you need, interest accrues daily on the drawn balance, and repaying restores your availability. There's no re-application for each draw, which is why it's the classic tool for recurring, unpredictable working-capital gaps. (See our line of credit explainer for full mechanics.)
Side-by-side comparison
| Dimension | Invoice factoring | Business line of credit |
|---|---|---|
| Structure | Sale of AR at a discount | Revolving debt up to a limit |
| Underwriting focus | Your customers' credit, invoice quality, industry | Your credit, time in business, revenue, financials |
| Borrowing base | Depends on eligible invoices, concentration limits, and provider approval | Approved limit; secured lines often tied to AR/inventory values |
| Customer involvement | Typically yes — factor collects from customers (notification factoring) | Routine collections usually remain with you; facility terms can impose controls |
| Repayment | Self-liquidating — customer's payment settles it | You repay draws; interest daily on outstanding balance |
| Reusability | Continuous as you generate new invoices | Revolving — repay and redraw |
| Balance sheet | Sale accounting depends on the agreement and applicable rules | Drawn debt adds a liability; affects debt ratios |
| Risk allocation | Recourse (you bear nonpayment risk) or non-recourse (factor bears it), per IRS guidance on factoring arrangements | You owe regardless of whether customers pay you |
| Pricing format | Factoring fee / discount, not an APR | Interest rate, usually floating off a base rate |
Underwriting: who has to be creditworthy?
This is the biggest practical difference.
Factoring underwrites your customers. Advance rates and fees vary with the creditworthiness of the businesses that owe the invoices, your receivables volume, and industry risk (BDC). A two-year-old staffing firm with thin credit but invoices to Fortune 500 customers can often factor when it couldn't qualify for a meaningful credit line. Factors will still review your business — they assess dilution, disputes, and Concentration risk — but the center of gravity is the Debtor, not you.
Lines of credit underwrite you. Per SBA guidance, traditional banks typically require good personal credit and about a two-year business track record; alternative lenders may accept roughly 6–12 months in business and credit scores in the 500+ range with faster approval, though the SBA notes their rates run higher than banks'. Every lender assesses credit and repayment ability, and approval and terms vary by lender.
Collateral, liens, and your balance sheet
A line of credit can be secured or unsecured; when secured, lenders may require business assets or even a certificate of deposit as Collateral (SBA). For a Canadian example, BDC describes operating lines secured by inventory and receivables. For a US offer, ask whether a UCC Lien (UCC-1 Filing) and Personal Guarantee are required and which assets are covered; an unsecured line does not imply a lien on specified collateral.
Do not assume factoring is automatically off balance sheet. Ask your accountant to assess sale treatment, retained obligations, and covenant effects under your agreement. Also review the factor's security interest: combining factoring with an AR-secured credit line can require lender coordination.
Recourse matters. Under Recourse Factoring, you must make the factor whole if your customer can't pay; under Non-Recourse Factoring, the factor absorbs customer insolvency risk for a higher fee (IRS factoring guidance). Read the definition of "non-recourse" in your agreement — it often covers only financial inability to pay, not disputes or returns.
The cost comparison — with a worked cash-gap example
Factoring pricing often emphasizes a fee or discount, which cannot be compared directly with an annual interest rate. Compare dollars paid, funds advanced, and time outstanding. State commercial-financing disclosure requirements can also apply; see the CFPB's determination on state disclosure laws. Our factor rate vs. APR guide explains why the pricing formats differ.
Scenario: You invoice a creditworthy customer $60,000 on net-45 terms and need roughly $50,000 now to cover payroll and materials. All rates below are illustrative only — actual pricing varies widely by provider, customer credit, volume, and industry.
Option A — factor the invoice. Suppose the factor offers an 85% advance and a fee of 1.5% of face value per 30 days, prorated daily without a minimum period or extra fees:
- Advance: 85% × $60,000 = $51,000 now
- Fee for 45 days: 2.25% × $60,000 = $1,350
- When the customer pays, you receive the $9,000 reserve minus the $1,350 fee = $7,650
- Simple annualized cost estimate on cash advanced: $1,350 ÷ $51,000 × (365 ÷ 45) ≈ 21.5%. This excludes compounding and additional fees and is not a legally prescribed APR disclosure.
Option B — draw on a line of credit. To compare the same cash amount, suppose you draw $51,000 for 45 days at an illustrative 12% annual rate, using a 365-day calculation and no additional fees. This is an example rate, not a current quote:
- Interest: $51,000 × (0.12 ÷ 365) × 45 = about $755
- Annualized cost: 12% by construction, plus any draw or annual fees
In this illustration, the line of credit costs about $595 less for the same $51,000 advance and 45-day gap. Access still matters: factoring approval depends on the invoice, customer, and your business, while a credit line depends on the lender's underwriting and available limit. If the lender approves only $20,000, the line alone cannot cover this example's cash need. Compare the actual approved amounts, fees, and obligations.
▦Estimate your invoice factoring paymentsRun the numbers in the invoice factoring estimator →▸Use the invoice factoring calculator to model the advance, reserve, and collection timing.
▦Estimate your lines of credit paymentsRun the numbers in the lines of credit estimator →▸Decision framework: which one fits your situation?
| Your situation | Better starting point | Why |
|---|---|---|
| Strong personal/business credit, 2+ years operating, predictable gaps | Line of credit | Compare reusable credit offers and their full cost |
| Thin credit or short Time in Business (TIB), but strong B2B customers | Invoice factoring | Underwriting rides on your customers' credit |
| Fast growth outpacing your credit limit | Factoring | Eligible invoice volume may support more funding, subject to approval and caps |
| Long Days Sales Outstanding (DSO) and collections headaches | Factoring | The factor typically handles collection on purchased invoices |
| Bank covenants or debt-ratio sensitivity | Review both with your accountant | Accounting treatment and covenant definitions determine the effect |
| You need cash for inventory, payroll, or non-invoice expenses | Line of credit | Factoring only monetizes existing B2B invoices |
| Consumer-facing sales (no B2B invoices) | Line of credit or revenue-based financing | Factoring requires business-to-business receivables |
Questions to ask before you sign either one
For a factoring agreement:
- Is it recourse or non-recourse — and what exactly does non-recourse cover?
- What's the advance rate, the fee schedule per 15/30-day increment, and are there minimum monthly volumes, termination fees, or a required contract length?
- Is it whole-ledger (all invoices) or can you do spot factoring on selected invoices?
- How will the factor communicate with your customers, and how are disputes handled?
For a line of credit:
- Is the rate fixed or floating, and off what index and margin?
- Are there draw fees, annual/maintenance fees, non-usage fees, or a borrowing-base certificate requirement?
- What collateral and personal guarantee are required, and what covenants could trigger a freeze or Default?
- Is the line committed, or can the lender reduce it at renewal?