Invoice Factoring Explained: Rates, Process and Examples

What is invoice factoring, exactly?

Invoice factoring is the purchase of your unpaid invoices at a discount. You assign the receivable to a factoring company, it pays you most of the value immediately, and it collects the full amount from your customer when the invoice falls due. The difference between what the factor pays you and what it collects is its fee. Structurally this is a sale, which is why factoring does not create loan debt and why factors speak about advance rates and discounts rather than principal and interest.

That distinction has practical consequences. The factor's primary credit decision is about your customer, because your customer is the party who will actually pay. It also means the factor cares intensely about whether the invoice is valid: whether the goods were delivered, whether the service was accepted, whether anyone has a right to deduct from the balance, and whether another lender has a prior claim on the same receivable.

Factoring is among the oldest forms of commercial finance in the United States and remains standard practice in trucking, staffing, apparel, manufacturing and government contracting. In those sectors an accounts-payable department will process assigned invoices routinely, which removes most of the awkwardness owners worry about before they start.

How does the factoring process work?

Once an account is set up, factoring is a short, repeatable loop. Most of the effort is front-loaded into onboarding and customer credit approval.

1. 1Apply and submit your aging. The factor reviews your AR aging, runs credit on the customers you want to factor, and proposes an advance rate and fee schedule per customer.
2. 2Onboarding and notice of assignment. You sign the factoring agreement, a UCC-1 is filed against receivables under Article 9, and a notice of assignment goes to each approved customer with new remittance instructions.
3. 3Select the invoices to factor. You decide what goes into the facility — everything from a named customer, or individual invoices under a spot arrangement. Each submission includes proof of delivery or acceptance.
4. 4Verification. The factor confirms with your customer that the work was received and the amount is undisputed. This is normally a short email or call to accounts payable.
5. 5Advance funded. Up to 95% of invoice value is sent by ACH or wire, typically the same day for established accounts and within 24 hours otherwise.
6. 6Collection and reserve release. Your customer pays the factor on the normal due date. The factor deducts the accrued fee and any approved adjustments, then releases the remaining reserve to you.

A worked example: what an $85,000 invoice actually costs

Headline percentages are hard to feel. Running the numbers on a single invoice makes the economics concrete — and shows why the date your customer pays matters more than the rate you negotiated.

Recourse vs. non-recourse factoring

Every factoring agreement has to answer one question: who absorbs the loss if the customer never pays? Recourse factoring leaves that risk with you — the factor charges the invoice back, usually after an agreed period such as 90 days past due, and recovers the advance from your reserve or your next funding. Non-recourse factoring moves defined credit risk to the factor in exchange for a higher fee and stricter credit limits.

The word non-recourse does a lot of marketing work and very little legal work unless you read the definition in your agreement. In most programs it covers the customer's insolvency or protracted default and nothing else. It does not cover a buyer who refuses to pay because the goods arrived damaged, the hours were not approved, or the price is contested.

Spot factoring vs. full-ledger programs

Spot factoring lets you sell individual invoices as the need arises, with no commitment to bring more. It is the right tool for an occasional large invoice, a one-off cash squeeze or a seasonal peak, and it costs more per invoice because the factor underwrites a one-time transaction and carries the administrative cost of onboarding for a single deal.

Full-ledger programs commit all invoices from selected customers to the facility. You give up flexibility and gain a materially better rate, higher advance rates, and usually free credit checking on prospective customers. The cheapest headline rates in the market are nearly always attached to full-ledger commitments with monthly minimums — which is fine if your volume is steady and expensive if it is not.

A practical middle path is to commit the customers you invoice every month and keep irregular accounts outside the facility. That delivers most of the pricing benefit without obliging you to factor invoices you could comfortably wait on.

Which fees should you ask about?

The discount rate is the headline, not the total. Two proposals quoting the same percentage can differ by thousands of dollars a year once the schedule of charges is included. Ask for a written list of every fee and the circumstances that trigger it, then model a typical month rather than a typical invoice.

• Application, due-diligence and account set-up charges
• ACH, wire and same-day funding fees, charged per transaction
• Lockbox or payment-processing fees on collections
• Monthly minimum volume charges, and what happens in a slow month
• Invoice-level processing or verification fees
• Chargeback and re-purchase handling fees on unpaid invoices
• Early termination fees and the notice period required to exit
• Rate escalators that apply once an invoice passes 30, 60 or 90 days

What can go wrong with factoring?

Disputes are the main source of trouble. A factor advances against an invoice it believes is clean; if the customer later raises a quality or delivery complaint, the invoice becomes ineligible and the advance is recovered from your reserve. The practical defense is documentation — signed delivery receipts, approved timesheets, acceptance records — gathered before you submit, not after a customer goes quiet.

Lien conflicts are the second. A factor needs a first-position UCC filing on the receivables it is buying. If a prior lender holds a blanket filing, that must be released or subordinated first, and the same applies to unresolved federal tax liens. On federal prime contracts, the Assignment of Claims Act sets out the notice and acknowledgement steps required before the government will remit to anyone other than the contractor, and skipping them leads to payments arriving in the wrong account.

Then there is simple operational drift. Customers who keep paying your old bank account, invoices submitted without the assignment language, credit memos issued and never reported. None of these are dramatic, but each one creates reconciliation work, and a pattern of them is what pushes a factor to lower your advance rate at the next review.

Which businesses factor, and which should not?

Factoring suits companies whose costs land before their revenue does and whose customers are solid but slow. Carriers buying fuel this week against broker payments in 45 days, staffing agencies running weekly payroll against 60-day clients, manufacturers buying materials for an order that invoices on delivery — these are the classic profiles, and the fee is simply the cost of operating at a faster tempo than the payment terms allow.

It is a poor fit where gross margins are thin enough that a 2% monthly discount consumes the profit, where invoices are small and numerous, or where sales are to consumers. It also will not fix a business whose customers are genuinely unlikely to pay: factors decline weak buyers precisely because the risk sits with them, and a ledger full of declined customers is a signal worth heeding rather than arguing with.