Invoice finance vs line of credit: two ways to fund a cash-flow gap

The short verdict

Choose invoice finance if most of your sales are invoiced to businesses or organisations, your customers are reliable but slow, and your sales are growing.

Choose a line of credit if you sell to consumers, if your gaps aren’t mainly about customer payments, or if you want something simple that doesn’t involve your debtors.

How do they compare?

	Invoice finance	Line of credit
Sized on	Value of eligible unpaid invoices	Turnover, financials or security
Grows with sales	Yes, automatically	No — needs a limit increase
Whose credit matters	Largely your customers’	Yours
Works for consumer sales	No	Yes
Customer involvement	Factoring: yes. Discounting: usually no	None
Setup	Moderate — debtor checks	Moderate — business checks
Speed once running	Fast on new invoices	Near-instant within limit
Typical security	Receivables, often a broad PPSR registration	Varies; sometimes property or GSA
Admin	Ongoing invoice reporting	Low

Why does “grows with sales” matter so much?

Picture a business that’s winning work quickly. Every new contract means more wages and materials paid out before customers pay. With a line of credit, the limit was set when the business was smaller; by the time it’s needed most, it’s too small, and increasing it means a fresh application. With invoice finance, each new invoice adds to the funding available. The facility expands as the gap expands.

That’s the single biggest reason growing B2B businesses choose invoice finance. If your growth is steady and predictable, a line of credit with periodic reviews can keep up; if growth is fast or lumpy, invoice finance tends to cope better.

Why does “whose credit matters” matter?

A line of credit is a bet on your business. Invoice finance is largely a bet on your customers paying. That can be a real advantage for a young or recovering business with a weaker credit profile but blue-chip customers — government agencies, large corporates, councils. It’s a disadvantage if your customers are small, slow or prone to dispute invoices, because the financier will advance less or exclude them.

What does each cost?

Neither product is priced simply, so compare on dollars, not headline numbers.

• Invoice finance usually combines a service fee linked to invoice value with a charge on funds advanced for as long as they’re outstanding, plus possible setup or minimum fees.
• A line of credit usually charges interest on what’s drawn, plus a line or account fee on the limit.

Ask each provider to model a typical month: your average invoice volume, how long customers take to pay, and how much you’d actually draw. Then compare the total dollars. Our guide to comparing fast loan quotes has a simple worksheet.

What about security and the PPSR?

Invoice financiers almost always register a financing statement on the Personal Property Securities Register — sometimes over receivables only, often over all present and after-acquired property. That can make it harder to add other lending later, because a second lender may not want to sit behind a broad existing registration. A line of credit may also involve a registration, but it’s often narrower or tied to property instead.

If you think you might need both, or might later want equipment finance or a property-secured loan, ask about the scope of the registration before you sign anything.

Two illustrative examples

Illustrative example 1. A Hamilton engineering firm supplies parts to three large manufacturers on 60-day terms and has doubled its turnover in eighteen months. Its bank overdraft hasn’t kept pace. Invoice finance against the manufacturers’ invoices grows with every order and depends on customers with strong credit — a natural fit.

Illustrative example 2. A Christchurch homeware store sells to the public and has a predictable dip each winter. There are no business invoices to finance. A line of credit sized on its turnover, drawn in winter and repaid by Christmas, fits far better.

Which is quicker to set up?

Neither is instant from scratch. Both involve assessment before the first draw. Invoice finance adds a step — checking your debtors and invoicing processes — so it can take a little longer. If you need money this week and have neither in place, a short-term loan is the faster stopgap while you arrange the longer-term facility. See same-day business loans for the urgent options.

What questions should you ask before choosing?

• What share of my sales are invoiced to businesses, and how concentrated are they?
• How fast is my turnover growing, and will a fixed limit keep up?
• How long do my customers actually take to pay, on average and at worst?
• What will be registered on the PPSR, and could it block other lending later?
• What is the total monthly cost in dollars at my real volumes?
• What are the notice period and exit costs if I want to leave?

If you can answer those, the choice usually makes itself.

What do the full pages cover?

For the complete picture on each product, read invoice finance and business line of credit. If your main problem is customers paying late rather than growth, late-paying customers looks at collection tactics as well as funding.

Want both modelled on your real numbers? Tell us about your sales and debtors.

Get the facility that fits how you sell

The right choice comes down to who your customers are and how fast you’re growing. Enquiring with us involves no credit check, and your application stays with one specialist rather than being circulated to multiple financiers. Give us an accurate picture of your customers, your invoice volumes and how long people take to pay, and we’ll recommend the structure — invoice finance, a line of credit or something simpler — that actually suits your business. Start your application.