The fees, one by one
Origination: the largest and most common, a percentage of the amount, taken off the top. You are approved for $50,000, the fee is 3 percent, $48,500 arrives, and you repay the factor on $50,000. Ask whether the factor applies to the gross or the net; it is nearly always the gross.
Underwriting or processing: a flat amount on some products, a few hundred dollars, sometimes waived on request.
ACH or payment fees: a small charge per debit on some advances, which over a hundred daily payments is not small.
Returned-payment and late fees: charged when a debit bounces, and a common trigger for a default notice.
Prepayment or early-termination: on interest-bearing products, sometimes a charge for repaying early; on factor products, the total is fixed anyway.
Broker fee: paid by the funder out of its margin on most deals, occasionally charged to you separately. Ask which. A fee charged to you before funding, to secure the funding, is the sign of a scam rather than a fee.
Why fees matter more on small amounts
$300 on $10,000 is 3 percent. $300 on $100,000 is nothing. The factor scales with the amount; most fees do not. For a small, short advance, the fees can be a third of the total cost, and an offer with a lower factor and higher fees can cost more than one with the reverse. Compare on total dollars repaid minus dollars received, with every fee inside the number.
Getting them in writing
Ask for the amount received, the total repayment, the term and every fee on one page before you sign. In a dozen states the funder must provide a standard disclosure that includes exactly that. Anywhere else, a funder that will not put the fees on paper is telling you what the fees are like.