The most consequential difference between an MCA and a line of credit isn't speed or documentation — it's total cost. An MCA with a 1.30 factor rate on a $100,000 advance means you repay $130,000 regardless of how quickly you pay it back. If the term is six months, the effective APR exceeds 60%. If you refinance or "stack" a second advance before the first is repaid, costs compound rapidly.
A business line of credit charges interest only on what you draw, and only for the period you hold it. A $100,000 draw at 15% APR repaid in 90 days costs roughly $3,750 in interest — a fraction of the MCA cost for the same capital. The revolving structure also means you can redraw without reapplying, eliminating the origination fees that accumulate with repeated MCAs.
For businesses doing $1M–$10M in annual revenue, the difference between MCA and line-of-credit financing over a 12-month period can easily reach $30,000–$80,000 in unnecessary cost. That's capital that should be going to operations, not debt service.