"Working capital loan" and "business line of credit" are two of the most-searched small business financing terms. They're also two of the most confused. I get this question constantly: which one should I get?
The short answer is that they solve different problems. The longer answer, the one that will actually save you money, comes down to understanding how each is structured, what each costs over time, and what kind of cash flow situation you're actually facing.
The fundamental difference
A working capital loan (also called a short-term business loan or term loan) is a one-time, lump-sum loan. You get a check for the full amount, you repay it on a fixed schedule over a fixed term, and when it's paid off, the relationship is over. If you want more money, you apply again.
A business line of credit is a revolving credit facility. The lender approves you for a maximum credit limit, and you draw against it as needed. You only pay interest on the amount you've actually drawn, not the full credit line. As you pay back what you've drawn, that capacity becomes available to use again, like a credit card.
That structural difference is everything. It determines how each product fits into your business, how much it costs, and when each one is the right call.
When a working capital loan makes more sense
Working capital loans are best when you have a single, defined use of funds and a clear repayment plan. Some examples:
- Buying $80,000 of inventory for a known seasonal sales push
- Funding a $50,000 marketing campaign for a product launch
- Covering payroll for three months while you wait for a large invoice to clear
- Renovating a storefront before a busy season
In each case, you know exactly what you need, you know roughly when you'll generate the cash to pay it back, and you don't need ongoing access to capital. A lump sum at a fixed rate with a fixed payoff date is the cleanest fit. You can budget for it, your cash flow projections are straightforward, and there's no temptation to draw more than you need.
Working capital loans typically have terms from 6 months to 5 years, and rates depend heavily on your business profile and the lender. The shorter the term, the higher the effective interest cost. Short-term lenders tend to express their pricing as a "factor rate" (e.g., 1.20) rather than an APR, which can obscure how expensive they really are. Always ask for the APR equivalent.
When a line of credit makes more sense
Lines of credit shine in situations where your funding needs are unpredictable or recurring:
- Managing the gap between when you pay vendors and when customers pay you
- Smoothing out seasonal cash flow swings
- Having capital ready for opportunities that don't have a fixed schedule
- Covering small unexpected expenses without re-applying for a loan each time
The math works in your favor here because you only pay interest on what you draw. If you have a $100,000 line and you only use $20,000 this month, you're only paying interest on $20,000. Once you pay it back, that $20,000 becomes available again: no new application, no new origination fees, no new credit pull.
The trade-off: lines of credit usually have stricter qualification requirements than short-term working capital loans. Lenders want to see at least 12 months in business, $150K+ in annual revenue, and a personal credit score of 600 or better. Some require even higher.
Cost comparison: a real scenario
Imagine you need $30,000 over the course of a year, but you'll only need $10,000 at any given moment, drawing it as you need it for inventory and paying it back as customers pay invoices.
With a working capital loan, you'd take the full $30,000 up front and pay interest on the entire balance for the full term, even on the $20,000 you don't actually need at any given moment.
With a line of credit, you'd only ever owe $10,000 at a time. You'd pay roughly one-third the interest of the working capital loan, even at the same APR. For revolving needs, the line wins decisively.
Now flip it: you need a single $30,000 chunk on day one for a known purchase, and you'll pay it back over 12 months from new revenue. Here, the working capital loan typically wins on simplicity and slightly lower rates, since lenders charge a small premium for the optionality of a credit line.
A simple decision matrix
Ask yourself two questions:
- Do I need a single lump sum, or ongoing access? Lump sum → working capital loan. Ongoing → line of credit.
- Is my use of funds defined and finite? Yes → working capital loan. No or recurring → line of credit.
If you answer "lump sum" and "defined" to both, it's a working capital loan. If you answer "ongoing" and "recurring" to both, it's a line of credit. If you split, lean toward whichever question feels more central to your actual situation.
One more thing
Some businesses benefit from having both: a working capital loan to fund a specific initiative, and a line of credit on standby for cash flow management. They're not mutually exclusive, and lenders are generally fine with it as long as your cash flow can support both.
The mistake I see most often is business owners taking a working capital loan when a line of credit would have served them better, usually because the working capital loan was easier to qualify for. Easy isn't the same as right. If you have time to qualify for a line of credit and your cash flow needs are recurring, the line will almost always cost you less over time.