Invoice Factoring for Contractors: The Real Cost

Quick answer: Invoice factoring advances 70% to 90% of an invoice in days, but construction factoring fees run 1% to 8% and compound the longer a client sits on the bill. Across a slow-paying job, that haircut can add up significantly. A reminder system can help keep the full invoice instead of selling the receivable.

You finish the job, send the invoice, and then wait. Payroll, materials, and the next bid all come due while the client's check is still weeks or months out. A factoring company steps in and offers to hand you most of that money now. The pitch sounds like a lifeline, and in a cash crunch it can be. The price is larger than the rate on the front of the brochure, though, and it compounds the longer your client takes to pay.

What you're really selling when you factor an invoice

Invoice factoring is selling your unpaid invoices to a third party at a discount in exchange for cash upfront. It also goes by accounts receivable factoring or debt factoring. The factor advances you 70% to 90% of the invoice amount, then takes over collecting from your client. When the client pays, you get the remainder minus the factoring fee.

It is not a loan. You're selling the receivable for a percentage of its value, which means the invoice stops belonging to you in full. The advance is the cash you get today. The discount is the revenue you never see again.

The rate you're quoted, and the rate you actually pay

Factors advertise a flat fee of 1% to 5% of the invoice value per month. Across the industry, rates run 1% to 6% of the invoice value, with most businesses paying 1% to 4% for every 30 days an invoice stays outstanding. Construction lands at the high end, with factoring fees running 1% to 8% of the invoice total.

The monthly framing hides the real math. A factor charging 4% a month is not charging 4% a year. It charges for each month the invoice sits unpaid. The factoring fee is generally costlier than the interest on a business loan, often running 1% to 4% of the invoice's face value for every week or month the cash is outstanding.

Where the money actually goes

The quoted rate is rarely the whole bill. Factoring costs split into a discount fee of 1.5% to 5% plus a service fee of 0.5% to 2.5%. On top of that sit service fees, monthly minimum fees, origination fees, and other add-ons.

Stack those on a slow-paying job and the total climbs fast. At monthly rates of 1% to 5%, an invoice that sits for several months can accrue substantial fees before any add-on charges. In construction, where fees reach 1% to 8% per invoice, a job that drags on can give away a growing share of its value. On thin construction margins, that's the gap between a job that makes money and one that just covers the crew.

Recourse changes the price, too. With recourse factoring you stay on the hook if the client never pays, and you may have to buy the invoice back, so fees run lower. Non-recourse shifts the default risk to the factor and protects you, but costs more.

The cost that never shows on the invoice

The biggest hidden cost isn't a line item. When a factor takes over collections, you lose control over how your client is contacted. Depending on the agreement, you may give up communications with your customer entirely. In construction, relationships are everything, and a blunt collections message to a general contractor can cost you the next job.

Some factors also set minimum volumes or contract terms, which means you factor more invoices than you needed to, and give up more of your revenue, just to keep the arrangement. The cheapest way to use factoring is to not need it every month.

How to get paid faster without giving up a cut

Factoring is one option among several, and it's the most expensive way to bridge a gap. Business loans are the more traditional form of bridge financing, while cash-flow management and faster accounts receivable are the do-it-yourself routes.

The alternative that doesn't cost a percentage is fixing the payment process so invoices don't sit unpaid in the first place. Send the invoice the moment the work is done. Put payment terms in writing. Send a reminder before the due date, not after. Automate the follow-ups so no invoice slips weeks past its due date.

That's the job Nudge does. Instead of selling your receivable, Nudgepay's automated payment reminders help you keep the full invoice. You keep the whole invoice, the reminder goes out on schedule whether you remember or not, and your client pays you directly. For a fuller picture of keeping cash moving without financing, start with the contractor cash flow guide.

If you want to get there, tighten the front of the process first. Here's how to get paid faster and set up payment reminders that actually work.