Factor-rate pricing looks reassuringly simple: multiply the advance by the factor and that is what you repay. What it hides is time. Interest rates measure the cost of money per year; a factor rate charges the full fee no matter how fast you repay — and RBF terms are short, which concentrates that fee into a small number of months.
Take $100,000 at a 1.30 factor repaid over 10 months: $130,000 back, $30,000 cost. As a flat number, 30 percent. As an annualized rate on a declining balance — since you do not keep the full $100,000 for the whole term — the effective cost lands far above 30 percent per year. Shorten the term to 6 months and the same factor gets dramatically more expensive per year, not cheaper, even though the dollar cost is identical.
None of this makes the product dishonest; it makes the quote incomplete. Run any offer through the capital cost calculator — it converts factor rates to effective APR against your actual term and payment frequency — and then decide whether the use of funds clears that hurdle. A 40-percent-margin opportunity can absorb expensive money and still win. Payroll cannot.