MCA Factor Rate vs. APR: Understanding the True Cost of an Advance
By the I&S Accounting teamReviewed by a licensed U.S. CPA
Factor Rate vs. Interest Rate
A merchant cash advance isn't quoted as an interest rate. It's quoted as a factor rate — often somewhere between roughly 1.1 and 1.5. The factor rate tells you the total you'll repay, not an annualized cost.
If you take a $50,000 advance at a 1.4 factor rate, you repay $50,000 × 1.4 = $70,000. The $20,000 difference is the cost of the advance.
Why a Factor Rate Hides the True Cost
A factor rate looks small ("just 1.4"), but it doesn't account for time. The same $20,000 cost is very different if you repay it over 6 months versus 18 months. The faster the repayment, the higher the effective annualized cost.
Estimating the APR
To compare an MCA to other financing, you need an approximate APR, which factors in the repayment term. The rough idea:
- Find the total cost (payback minus advance) — here, $20,000.
- Express it as a percentage of the advance ($20,000 / $50,000 = 40%).
- Annualize it based on the repayment term. Paid back in six months, that 40% over half a year works out to roughly an 80% APR.
The shorter the term, the higher the APR — which is why MCAs can carry effective rates far above what the factor rate suggests.
What This Means for Your Books
On the books, that cost shouldn't be buried in reduced revenue. It belongs as a financing expense, with the principal and the cost split correctly. Recording it properly is what makes the true cost visible — early, before it strains cash flow.
The Bottom Line
A factor rate tells you how much. The APR tells you how expensive. If you're using MCAs to fund growth, knowing the difference — and booking it correctly — keeps you from mistaking expensive capital for cheap capital.