Selling an invoice before the customer pays it sounds simple. The math behind it is not. Many owners sign a factoring deal and only then discover the fees, the holdbacks and the contract terms that come with it.
The good news is that the cost is not a mystery. It follows a known structure: an advance, a discount fee, and a set of extras that vary by provider. Here is how each part works, so you can price the deal before you sign it.
Factoring Is a Sale, Not a Loan
Factoring is a financial transaction in which a business sells its invoices to a third party, called a factor, at a discount. That matters for how you think about price. A loan charges interest on money you owe back. A sale takes a slice of money you were already owed.
The invoices themselves are accounts receivable: enforceable claims for payment for goods or services that customers have not paid for yet. Because the factor buys the claim, its profit is the gap between what it paid you and what your customer pays it.
The Advance and the Holdback
Funding usually arrives in two parts. Detailed guides to invoice factoring describe a standard split: the advance covers 80% to 85% of the invoice value, and the rest, less fees, comes once your customer pays in full.
The gap between the advance and the full value is your holdback. It protects the factor against losses and covers its fees. A large holdback is not a fee by itself. It is, however, cash you cannot spend, which matters when payroll is due. This connects to our earlier piece, When to Turn a Side Hustle Into a Full-Time Business.
The Discount Rate, the Core Fee
The main charge is the discount rate, the fee a factoring company takes for the service. It is usually stated as a percentage of the face value of the invoices. According to the same guides, a factor may charge 5% for an invoice due in 45 days.
Timing changes the price. A company that charges 1% per week would end up at a discount rate of 6–7% for the same invoice. The clock, not the paperwork, drives much of the bill.
Why does the fee look so high? The rate applies to the whole face value for the whole period, even though you receive most of the money on day one. That is why a charge that sounds small per month can look large per year. For related coverage, see Is an Entrepreneurship Degree Worth It? An Honest Look.
The Extras That Quietly Add Up
The sticker fee is rarely the whole bill. Providers often combine an administration charge with interest that accrues while your customer takes time to pay. Some also add charges for credit checks and collection work.
Contract shape matters too. Many factoring companies set monthly minimums and ask for long-term contracts, especially on whole-ledger deals where you factor every invoice. Spot factoring, which is one invoice at a time, avoids the minimums but usually carries a cost premium.
Risk shifting has a price as well. In nonrecourse deals, the factor accepts the credit risk on approved accounts, so it studies your customers before it agrees to buy. That protection is worth something, and it shows up in the fee.
When the Trade Makes Sense
The test is a comparison, not a feeling. Factoring pays off when the return on the cash you put to work beats the cost of using the factor. If the money unlocked funds a deal with a fat margin, the fee is cheap. If it only covers a slow season, shop hard on price.
It also helps to know who fits. Factoring is a tool for firms that sell to other businesses on invoice terms. Retail and consumer companies rarely qualify, since their customers pay on the spot rather than on credit.
Conclusion
Factoring costs come in three layers: a discount fee on the face value, a holdback that delays part of your cash, and extras for administration, risk and contract terms. Ask each provider to state all three in writing. Then run the total against the margin on the work it funds. That one comparison turns a vague product into a clear price.
This article is general education, not financial advice. Terms vary by provider and jurisdiction, so consult a qualified adviser before signing any financing agreement.




