Ask all six of every funder, in writing where you can. Write their answers in the space under each one, then compare.
Why: the rate alone tells you little. 2% for 30 days with a 90% advance is a different deal from 2% for 15 days with 80%.
Why: counted by the month, day 31 starts a new fee. Counted by the day, 8 late days cost 8 days. On a $50,000 invoice that's $733.
Why: 2% of $50,000 is $1,000. 2% of the $45,000 you actually received is $900. Same rate, different bill.
Why: wires, credit checks, monthly service or lockbox fees, setup, unused-line fees. None show up in the rate.
Why: a $50,000 monthly minimum means you pay for $50,000 even in a $20,000 month. Exit fees and auto-renewals decide how stuck you are.
Why: the only number you can compare across funders. A lower rate with a service fee can cost more than a higher rate with none.