Construction Invoice Factoring Costs
Factoring companies charge a fee rather than interest, since this is a sale of receivables rather than a loan. Fees are typically expressed as a percentage of the invoice’s total value.
Standard range: 1 to 5% of invoice value. Faster-paying customers with strong credit fall toward the lower end. Slower-paying customers, higher-risk projects, or overdue invoices trend toward the higher end.
How fees scale with collection time
High-risk invoices
up to 5%
$15,000
1.5% fee on $1M monthly billing
$50,000
5% fee on $1M monthly billing
Additional fees to watch for
01
Setup or onboarding fees
Charged once to establish your account with the factoring company.
02
Monthly minimum fees
Charged if your factoring volume falls below a set monthly threshold.
03
Lockbox fees
Charged for processing incoming payments through the factor’s lockbox.
04
Service or maintenance fees
Ongoing access charges for using the factoring platform or facility.
Always request a full fee schedule, not just the headline factoring rate, before signing any agreement.
What Specialty Subcontractors Specifically Need to Watch Out For
Most general guides to invoice factoring are written for industries where the buyer-seller relationship is straightforward. Construction is different, and subcontractors face a specific set of risks that warrant closer attention.
GC Notification
In traditional factoring, the factoring company sends a notice of assignment to your GC, informing them that payment should be directed to the factor. Some GCs are indifferent to this. Others view it negatively, interpreting it as a sign of financial instability or creating friction over dealing with a third party. If your GC relationships are competitive or carefully managed, the notification requirement is worth evaluating carefully.
Whole-Turnover vs. Spot Factoring
If a factoring company requires you to submit all your receivables or all invoices for a particular GC, you lose the ability to be selective. For subcontractors running 10, 20, or 30 pay apps per month across multiple projects, that’s a significant constraint. Look for spot factoring structures that let you choose which invoices to fund.
Impact on Your Bank Line of Credit
Some factoring companies file a blanket UCC lien that puts them in a superior position to your existing bank. This can create problems with your lender and restrict your ability to use your line of credit. Confirm the lien position any factoring company will take and whether it affects your existing banking relationship.
Collection Behavior
A factoring company that acts aggressively in collections can damage relationships you’ve spent years building. Ask how the factor handles slow-paying GCs and what their escalation process looks like. The best factoring relationships for subs are ones where the factor understands construction payment cycles and works collaboratively rather than adversarially.
How to Evaluate a Factoring Solution as a Subcontractor
Before signing with any factoring company, run through this checklist:
✓
Spot factoring available?
Can you choose which invoices to submit, or are you required to factor all receivables?
✓
GC notification required?
Will your GC receive a notice of assignment, and if so, what does it say?
✓
What UCC position does the factor take?
Will their lien filing interfere with your existing bank relationship?
✓
How does the factor handle collections?
What’s the escalation process if a GC pays slowly?
✓
What is the full fee structure?
Beyond the headline rate: setup fees, monthly minimums, service charges?
✓
Long-term contract or minimum volume requirement?
Are you locked in, or can you use it selectively when you need it?
✓
Construction-specific experience?
Do they understand pay-when-paid, retainage, lien waivers, and progress billing?
✓
How fast is funding?
Same-day vs. next-day vs. several days matters when you’re managing a tight cash window.
Getting Started with Construction Invoice Factoring
If you’re evaluating factoring for the first time, here’s a practical starting framework:
1
Map your cash flow gaps
Before pursuing any financing, understand where your actual pinch points are. Which projects front-load the most cost? Which GCs pay the slowest? Where are you drawing on your bank line most frequently?
2
Identify which invoices are good candidates
Look for invoices to creditworthy GCs or owners, free of disputes or liens, with payment terms of 30 to 90 days. These are the most factorable.
3
Run the math at your billing volume
Take your average monthly billing and apply a realistic factoring fee to it. Determine whether the cost is justified by the cash flow benefit at your specific scale.
4
Compare at least two or three providers
Fee structures, contract terms, and collection practices vary significantly. Get full fee schedules in writing and ask about GC notification and lien filing practices directly.
5
Start before you need it
The worst time to pursue a factoring arrangement is when you’re already in a cash crunch. Get vetted, get onboarded, and have the option available before a cash gap forces your hand.
Construction invoice factoring isn’t the right tool for every subcontractor or every project. But for specialty subs carrying high upfront costs on long-duration jobs, it’s one of the most practical ways to maintain working capital without adding debt or depleting a bank line. The key is choosing a structure that fits the
John O’Bryan
