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Best financing for unpaid invoices in 2026
The best financing for unpaid invoices is invoice factoring, which advances most of an invoice's value within days and is approved mainly on your customer's credit. A line of credit secured by receivables is cheaper for larger, established businesses. Spot factoring handles a single invoice when you do not want an ongoing arrangement.
By the WithFunded team · Published November 11, 2026 · Rates as of November 2026
The short list
- Best overall
- Invoice factoring
- Best for larger receivables balances
- Asset-based line of credit
- Best for a single large invoice
- Spot factoring
- Best when you worry a customer may not pay
- Non-recourse factoring
- Best when the gap is small
- Business line of credit
The 5 best options, ranked
1. Invoice factoring Best overall
You sell the invoice, receive most of its value up front, and get the rest minus a fee when your customer pays. Approval depends on who owes you.
Watch for: Your customers pay the factor directly, and with recourse factoring you still carry non-payment risk. Invoice factoring guide →
2. Asset-based line of credit Best for larger receivables balances
With steady receivables, a line secured by them costs less than factoring and lets you keep collecting from customers yourself.
Watch for: Expect regular reporting on receivables and inventory, and a limit that moves with them. Business line of credit guide →
3. Spot factoring Best for a single large invoice
When one slow invoice is causing the problem, spot factoring finances that invoice alone with no long-term contract.
Watch for: Convenient for a one-off gap, expensive as a habit. Invoice factoring guide →
4. Non-recourse factoring Best when you worry a customer may not pay
The factor takes on the risk of customer insolvency for a higher fee, which protects you from a bad debt.
Watch for: The protection usually covers customer insolvency, not a billing dispute. Invoice factoring guide →
5. Business line of credit Best when the gap is small
If customers pay in 30 days and the shortfall is modest, an ordinary line is simpler and cheaper than factoring.
Watch for: Some lenders add draw or maintenance fees, and a limit can be cut at renewal. Business line of credit guide →
Side-by-side comparison
| Option | Verdict | Cost basis | Funding speed | Qualifies on |
|---|---|---|---|---|
| Invoice factoring | Best overall | A factoring fee on invoice value, not an APR | Days | Your customers' creditworthiness more than your own |
| Asset-based line of credit | Best for larger receivables balances | Interest on what you draw; the limit follows a borrowing base of receivables and inventory | Weeks to set up | The quality of your receivables and inventory |
| Spot factoring | Best for a single large invoice | A higher fee per invoice than a contract facility | Days | One invoice at a time from a creditworthy customer |
| Non-recourse factoring | Best when you worry a customer may not pay | A higher factoring fee in exchange for the factor absorbing certain non-payment risk | Days | Your customers' creditworthiness; the factor screens them closely |
| Business line of credit | Best when the gap is small | Representative 8%–30% APR, charged only on what you draw | Often days | Revenue, time in business, and credit |
What it costs
Factoring is priced as a fee on the invoice, not an APR. You get an advance up front, then the balance minus the fee once your customer pays. At an illustrative 85% advance and 3% fee:
| Invoice value | Advance up front | Factoring fee | You receive in total |
|---|---|---|---|
| $10,000 | $8,500 | $300 | $9,700 |
| $50,000 | $42,500 | $1,500 | $48,500 |
| $150,000 | $127,500 | $4,500 | $145,500 |
Illustrative advance rate and fee. Actual terms depend on your invoice volume, your customers, and how long they take to pay. WithFunded calculation.
What lenders look at
- Your customers' credit and payment history.
- Invoice terms and whether the work is fully delivered and undisputed.
- Any existing lien on your receivables from another lender.
Mistakes to avoid
- Factoring invoices for work a customer might dispute. Disputed invoices come back to you.
- Signing a long contract with monthly minimums for an occasional need.
Frequently asked questions
- How does invoice factoring work?
- You sell an unpaid invoice to a factor, which advances most of its value right away. When your customer pays the factor, you receive the remainder minus the factoring fee.
- How much does it cost to factor a $50,000 invoice?
- At an illustrative 3% fee, $1,500, leaving you $48,500 in total. Fees rise the longer your customer takes to pay.
- Will my customers know I am factoring?
- Usually yes, because they are directed to pay the factor. Factoring is common in many industries, and most customers treat it as routine.
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How we ranked these options
This guide ranks types of financing, not individual lenders. Each option is ordered by how well it fits the need described on this page, judged on four things in this order: whether the structure matches how the money will be used and repaid, total cost, funding speed, and how hard it is to qualify. Cost figures are WithFunded calculations from published rate inputs as of November 2026: the bank prime loan rate from the Federal Reserve, the SBA maximum-rate schedule, and Federal Reserve survey data. The method follows our 2026 SMB Financing Cost Report, whose own figures use June 2026 rates.
WithFunded is a financing marketplace, not a lender. Our 2-minute form suggests a product type from the families we cover, and a funding partner reviews the request. Not every structure named in this guide is available through WithFunded: options such as SBA microloans, USDA farm loans, bank loans, and seller financing are ones you would pursue directly with the provider. They are listed because leaving out a good fit would make the ranking less useful.
Related guides
The top-ranked option on this page is invoice factoring because it fits the most common version of this need. Your own best fit depends on your revenue, time in business, credit, and how fast you need the money.
Disclaimer. WithFunded and Big Think Capital are a financing marketplace; we are not the direct lender and do not guarantee funding, approval, rates, or terms. Everything on this page is a representative example only — not an offer or a commitment to lend, and not financial advice. Actual rates, fees, payments, and terms are set by the funding lender and depend on your business, credit, and the product. Where required by state law, the lender provides cost-of-financing disclosures before any agreement is signed.