When a customer disputes an invoice after the factoring company has advanced you money, what happens next is set by your state's version of the Uniform Commercial Code and by the factoring agreement you signed. The law generally lets your customer raise the same complaint against the factor that it could raise against you, and the agreement decides how much of the problem comes back to you through the reserve, a chargeback or a repurchase demand. This guide walks through the sequence, runs the numbers and lists the clauses to check.
What happens after a customer disputes an invoice the factoring company funded
Factoring is a sale of your receivables, and Article 9 of the UCC applies to "a sale of accounts" (UCC 9-109(a)(3), official text on Cornell LII, checked October 6, 2026). Your customer is the account debtor, and the factor that bought the invoice counts as a secured party under UCC 9-102, which includes "a person to which accounts ... have been sold."
A dispute can show up as a short payment, a deduction, a written complaint or a customer who stops paying while it argues. Expect the stages below, but look up the trigger and timing for each one in your agreement.
| Stage | What can happen | Where it's set |
|---|---|---|
| Customer raises the problem | It withholds all or part of the payment | Your sales contract and UCC 9-404 |
| Factor flags the invoice | It may stop counting toward new advances while fees run | Disputed-account definition, fee schedule |
| Reserve holdback | The unadvanced part of that invoice, and possibly others, is held | Reserve clause |
| Chargeback or repurchase | The advance and fees are netted against new funding or reserves, or you buy the invoice back | Recourse and repurchase clauses |
| Replacement invoice | You assign a new invoice to cover the old one, if allowed | Substitution clause |
Why your customer can raise the dispute against the factor
The core rule is UCC 9-404(a) (official text, checked October 6, 2026). Unless the customer made an enforceable agreement not to assert defenses, the factor's rights are subject to "all terms of the agreement between the account debtor and assignor and any defense or claim in recoupment arising from the transaction that gave rise to the contract." Late delivery, short shipments and defective work all come from that transaction. Other claims against you also count if they accrued before the customer received notice of the assignment, though under 9-404(b) such a claim works against the factor "only to reduce the amount the account debtor owes."
That's why contra accounts, where you also buy from the customer, carry extra risk. The OCC's examiner guidance on asset-based lending lists them among receivables banks commonly designate as ineligible collateral, because the customer can "set off" what it owes against what it is owed (OCC Comptroller's Handbook, Asset-Based Lending, version 1.1, checked October 6, 2026).
Notice changes who the customer must pay. Under UCC 9-406(a) (checked October 6, 2026), the customer can pay you until it receives a notification, authenticated by you or the factor, that the amount has been assigned and payment is to be made to the factor. After that, paying you doesn't discharge the debt. Under 9-406(c), the customer can ask the factor for reasonable proof of the assignment and keep paying you until it gets that proof.
Credits get harder after notice, too. UCC 9-405 (checked October 6, 2026) makes a good-faith modification effective against the factor to the extent the payment hasn't been fully earned by performance, or has been earned but the customer hasn't received notice. Once both have happened, a discount you give the customer may not bind the factor, so get the factor's written consent before you promise one.
Recourse, non-recourse and who absorbs a commercial dispute
With recourse factoring, you repay the advance and fees when a factored invoice goes unpaid for a reason the recourse clause lists, and a customer dispute is the plainest case.
Non-recourse factoring shifts only the risk the agreement names. The OCC's trade finance booklet describes factoring as selling receivables "traditionally without recourse" to a factor that "assumes the full risk of collection, including credit losses," and adds that "even if the bank obtains a commercial credit insurance policy, dispute risk is not covered" (OCC Comptroller's Handbook, Trade Finance and Services, version 1.1, checked October 6, 2026). That passage concerns a bank's insurance, but the split helps your own review: credit risk is a customer that can't pay, and dispute risk is one that says it doesn't owe the full amount.
A dispute can come back to you under a non-recourse label in two ways. Under 9-404 the customer can reduce what it owes because of your performance, and a clause written around a customer's inability to pay may not reach that shortfall. And if you warranted that each invoice is for completed work and free of disputes, setoffs and counterclaims, a dispute can breach that warranty, which the agreement may make grounds for repurchase whatever the recourse label says.
| Situation | Recourse agreement | Non-recourse agreement |
|---|---|---|
| Customer becomes insolvent on an undisputed invoice | You repay the advance and fees | Covered only if the agreement's covered-loss definition includes it |
| Customer calls the work defective and won't pay | You repay through a chargeback or repurchase | Check the dispute definition and your warranties |
| Customer takes a deduction and short-pays | The shortfall is charged to you | Check whether deductions count as disputes |
Our guide to recourse vs. non-recourse factoring compares the two structures in more depth.
A worked example with a reserve, a chargeback and a replacement invoice
The numbers below are assumptions for illustration, not quotes from any factor: a $20,000 invoice, an 80% advance rate and a flat 3% fee on the face value that the factor keeps whether or not the customer pays in full. On day one you receive $16,000, and the $4,000 not advanced sits as the reserve. Real fee structures vary, and our invoice factoring rates and fees guide explains how they're built.
| No dispute | Partial dispute, credit memo approved | Full dispute, chargeback | |
|---|---|---|---|
| Customer pays the factor | $20,000 | $15,000 | $0 for now |
| Advance plus 3% fee | $16,600 | $16,600 | $16,600 |
| Result for you | $3,400 rebate | $1,600 shortfall | $16,600 charged back |
In the partial case, the customer reports a damaged shipment worth $5,000, you document it, the factor approves a $5,000 credit memo and the customer pays $15,000. The rebate you expected becomes a $1,600 shortfall, a $5,000 swing that equals the credit. The agreement decides whether that comes out of reserves on other invoices.
In the full dispute case, assume the agreement allows a chargeback once an invoice stays disputed past a set number of days. If you then assign a fresh $20,000 invoice from another customer, the same assumed 80% rate would normally produce $16,000, but netted against a $16,600 chargeback it produces nothing and leaves $600 owed. One disputed invoice can freeze your funding for a whole cycle while your other customers pay on time. Fees that keep accruing during the dispute make each figure worse, and if the customer pays later, ask how the agreement credits that payment back to you.
Factoring agreement clauses that decide who pays for a dispute
Read these before you sign, and again on the day a dispute starts. Our factoring agreement guide covers the rest of the contract.
| Clause | What to look for |
|---|---|
| Definition of dispute | Whether any complaint, deduction or short payment counts, or only a written dispute |
| Non-recourse scope | Which events are covered, and whether disputes, deductions and setoffs are excluded |
| Seller warranties | Promises that each invoice is for completed work and free of disputes, and what a breach triggers |
| Chargeback or repurchase | The trigger, the number of days, and whether you repay the whole advance or only the disputed part |
| Fees during a dispute | Whether fees keep accruing until the invoice is resolved |
| Reserve | Whether reserves are held per invoice or pooled, and whether other invoices' reserves can cover this one |
| Credits and settlements | Whether you need the factor's written consent before a credit memo or discount |
How to settle a dispute before it reaches your reserve
- Tell the factor first, in writing. Send the customer's complaint the day it arrives, since your agreement may require prompt notice and a chargeback clock may already be running.
- Pull the proof. Gather the purchase order, proof of delivery, timesheets, acceptance emails and change orders before you call the customer.
- Split off the disputed amount. Ask the customer to pay the undisputed part to the factor now.
- Get consent before any credit. Given 9-405, agree any credit memo or discount with the factor in writing first.
- Forward misdirected payments. A payment to you after notice doesn't discharge the customer's debt under 9-406(a), so turn it over as your agreement requires.
- Fix the cause. Invoice only after delivery or acceptance, clear contra balances before factoring a customer, and confirm large invoices before you submit them.
When you next shop for invoice factoring, compare dispute terms along with price. EQ Funding routes one application to lenders who compete to fund your business, including factoring companies, so you can line up dispute, chargeback and reserve terms before you sign.