Choosing between invoice factoring and a business line of credit comes down to one question: is your cash flow problem tied to unpaid invoices, or is it broader than that? Invoice factoring turns your outstanding receivables into fast cash by selling them to a factoring company at a discount. A business line of credit gives you a revolving pool of funds you can draw from, repay, and draw from again, regardless of what's causing the cash crunch. Both solve short-term funding gaps, but they work in different ways and fit different situations. This guide breaks down how each option works, what it costs, and how to decide which one matches your business.

How Does Invoice Factoring Work?

Invoice factoring works by selling your unpaid customer invoices to a factoring company in exchange for an upfront cash advance. The factor typically pays 70% to 95% of the invoice value right away, then sends you the remaining balance, minus a fee, once your customer pays the invoice in full.

Because approval is based on your customers' creditworthiness rather than your own credit score, factoring can work well for newer businesses or owners with less-than-perfect credit. It's commonly used in industries with long payment cycles, like staffing, trucking, manufacturing, and wholesale distribution, where businesses routinely wait 30 to 90 days to get paid.

How Does a Business Line of Credit Work?

A business line of credit works like a credit card for your business: you get approved for a set limit, draw funds as needed, and pay interest only on what you use. Once you repay what you've drawn, that credit becomes available again.

Lines of credit are typically unsecured or lightly secured, with limits that vary widely based on revenue and time in business. Approval usually depends more on your business's overall financial health and credit profile than on any single set of invoices.

Key Differences Between the Two

The biggest difference is what each product is built around. Invoice factoring is tied directly to your receivables: no invoices, no funding. A line of credit isn't tied to anything specific, so you can use it for payroll, inventory, an equipment repair, or any other cash need.

Cost structures also differ. Factoring fees are usually calculated as a percentage of the invoice value and can add up if you factor invoices regularly. A line of credit charges interest only on the outstanding balance, which can make it cheaper if you don't need funds constantly.

Approval speed and requirements differ too. Factoring approval often moves faster because the factor is mainly evaluating your customers' payment history. A line of credit application typically looks more closely at your business's financials and credit history, which can mean a slightly longer approval process.

When Should You Choose Invoice Factoring?

Invoice factoring makes the most sense when your cash flow problem is specifically caused by slow-paying customers. If you're consistently waiting weeks or months to collect on invoices while still needing to cover payroll, rent, or supplier payments, factoring converts that waiting period into immediate cash.

It's also a strong fit if your business doesn't yet qualify for traditional financing, since factoring approval leans on your customers' credit rather than yours.

When Should You Choose a Line of Credit?

A line of credit is usually the better fit when your cash flow needs aren't tied to receivables, or when you want flexible funding on standby for whatever comes up. Seasonal businesses, businesses covering one-off expenses, or owners who want a financial cushion without committing to a specific use case tend to benefit most from a revolving credit line.

If your business has a solid credit profile and steady financials, a line of credit can also come with lower overall costs than regularly factoring invoices.

Frequently Asked Questions

Conclusion

Both invoice factoring and a business line of credit can close short-term cash flow gaps, but they solve different problems. Factoring is built for businesses waiting on slow-paying customers, while a line of credit offers flexible, on-demand funding for whatever your business needs. If you're not sure which fits your situation, talk to a Merchant Flow funding specialist. We'll walk through your cash flow patterns and help you find the right fit.