The mechanics, and where the money actually is. A factor does not usually advance the whole face value of an invoice. It advances a large proportion of it and holds the rest as a reserve, then releases the reserve when the customer pays, keeping its fee out of that release. So a business selling a $50,000 invoice does not receive $50,000 less a fee on day one; it receives an advance on day one and the balance weeks later, and the timing of the second payment depends on the customer rather than on the business.
The fee is typically charged as a percentage of face value that increases with how long the invoice stays unpaid, which produces a cost structure with an unusual property: the business's cost is determined by its customer's behavior, not its own. A business with a customer that pays in 25 days and one that pays in 75 days can be charged very differently for identical invoices.
The distinction from a loan against the same invoices, in the statute's own words. California defines the neighboring product separately. An "asset-based lending transaction" is "a transaction in which advances are made from time to time contingent on a recipient forwarding payments received from one or more third parties for goods the recipient has supplied or services the recipient has rendered to that third party or parties." That is lending against receivables: the business keeps the claim, keeps collecting, and forwards the proceeds. Factoring transfers the claim. The economics can look similar and the legal position is not the same, which is why the two are defined in separate subsections of the same statute.
Recourse versus non-recourse is the term to read for, and it is where the risk actually sits. Under a recourse arrangement, if the customer never pays, the business has to make the factor whole, typically by buying the invoice back or by having the amount deducted from other proceeds. Under a non-recourse arrangement the factor absorbs that loss. Non-recourse costs more, and its protection is narrower than the name suggests: the contract defines what triggers it, and it is usually the customer's insolvency rather than any reason the customer fails to pay. A customer that simply disputes the invoice, or pays late, or goes quiet, is generally not a covered event under either structure. So a business signing a non-recourse agreement should read what the agreement treats as the covered event rather than relying on the label.
The customer finds out, and that is a real consideration rather than a presentational one. Because the claim has been transferred, the factor normally notifies the customer and the customer pays the factor. That has three consequences a business should price in before signing. The customer learns the business has sold its receivables, which some read as a sign of distress. Collection calls to that customer are now made by a third party whose relationship with the customer is transactional. And the business has given up some control over how a disputed invoice is chased. Arrangements that keep the factor invisible exist and cost more, and a business relying on that should confirm in writing how the factor handles a customer who does not pay.
What law applies, and the honest answer is: less than a business owner expects. Regulation Z, the source of most familiar credit disclosures, does not reach this at all. Its exemption at 12 CFR 1026.3(a) covers "an extension of credit primarily for a business, commercial or agricultural purpose" and separately credit "to other than a natural person," so a factoring arrangement falls outside it on either limb, before you even reach the question of whether a sale of receivables is credit.
One federal protection does survive, and Regulation B names factoring specifically. Its adverse-action rules reach "credit incident to a factoring agreement" at 12 CFR 1002.9(a)(3)(ii), under which a declined applicant must be notified of the action taken within a reasonable time and given a written statement of reasons on written request made within 60 days. Note the phrasing: it is credit incident to a factoring agreement, which is not the same as saying the purchase itself is credit, and the mechanics of that right belong to the business credit score page.
A few states have legislated in the gap, and California's law contains a provision written for factoring specifically. Section 22802 requires six disclosures before a commercial financing transaction closes, including "the total cost of the financing expressed as an annualized rate." Section 22803 recognizes that a factoring arrangement is a standing facility rather than a single transaction, and allows a factoring or asset-based-lending provider to disclose instead "an example of a transaction that could occur under the general agreement for a given amount of accounts receivables," with the same six items including the annualized rate.
Two limits on that. Section 22801 provides that the whole division "does not apply to" a list beginning with "a provider that is a depository institution", so a bank factoring arrangement is outside it, and the law reaches only offers of $500,000 or less. And whether any given state has such a law, and what it covers, varies.
One genuinely unsettled point, stated as unsettled. The Consumer Financial Protection Bureau's small business lending data rule lists nine excluded transaction types at 12 CFR 1002.104(b), including trade credit, insurance premium financing and, since May 2026, merchant cash advances. Factoring is not on that list. But the rule applies to "an extension of business credit," and whether a true sale of receivables is an extension of credit at all is a question the rule does not answer. In the same rulemaking the Bureau recorded, in a footnote citing commenters, the distinction that a "genuine factoring transaction creates a completed sale of receivables owed to the seller as a result of goods delivered or services provided by the seller to a third party," which points away from treating it as credit, and it declined to add an express exclusion. So the absence of factoring from the exclusion list should not be read either way.