A friend running a small auto detailing business once showed me two financing offers she was trying to decide between. One had a factor rate of 1.35. The other had an interest rate of 22 percent. She asked me which one was cheaper. It took me a solid ten minutes with a calculator to actually answer her question, and by the end of it, she looked at me and said something I’ve never forgotten: nobody explained any of this to me before I signed my last loan.
That confusion is remarkably common, and it’s not because business owners aren’t smart enough to understand the math. It’s because factor rates and interest rates are fundamentally different pricing systems dressed up to look similar, and comparing them without converting to the same unit almost assures you’ll misjudge which offer actually costs less.
Two Completely Different Pricing Systems
An interest rate calculates cost as a percentage applied to your declining loan balance over time. As you pay down the principal, the amount of interest you owe each subsequent period shrinks along with it. This is the pricing model most people grew up understanding through mortgages, car loans, and traditional bank financing, and it rewards paying off debt early since less interest accrues the faster your balance declines.
A factor rate works nothing like that. It’s a fixed multiplier applied once, upfront, to the full amount you’re borrowing, and the total repayment amount is locked in from day one regardless of how quickly or slowly you pay it back. A $20,000 advance at a 1.3 factor rate means you owe $26,000, full stop, whether you repay it in two months or six months. There’s no reward for paying early because the total dollar cost was never calculated based on time in the first place.
Why This Distinction Trips People Up
The confusion happens because both numbers get presented as a single figure that sounds comparable on the surface. A 1.3 factor rate and a 30 percent interest rate both contain the number that suggests a similar magnitude of cost, but they’re measuring entirely different things. The factor rate is a fixed total cost multiplier. The interest rate is an annualized percentage applied to a shrinking balance over time.
This becomes especially confusing because a factor rate, when you actually convert it into an equivalent annual percentage rate, often turns out to be dramatically higher than the number itself suggests, particularly for advances repaid quickly. A 1.3 factor rate repaid over just three months can translate to an effective annual rate well above 100 percent, even though the number 1.3 doesn’t sound remotely that alarming when you first see it printed on an offer sheet.
The Actual Math You Need to Run
Here’s the calculation that cuts through all of this confusion. Take the total dollar amount you’d repay under each offer for an identical amount borrowed, then simply compare those final numbers directly against each other. Forget the rate format entirely and focus purely on the dollar figure at the end.
For a factor rate offer, this is straightforward: multiply the amount borrowed by the factor rate to get your total repayment. For an interest rate offer, you’ll need to calculate the total interest that accrues over your expected repayment period given the declining balance structure, which most lenders will provide for you as a total repayment figure if you ask directly. Once you have both final dollar amounts sitting side by side, the comparison becomes genuinely simple, and it removes the possibility of being misled by which pricing convention sounds more or less intimidating on its own.
Why Speed of Repayment Matters More With Factor Rates
One of the most important practical implications of how factor rates work is that repaying early provides no financial benefit whatsoever, which runs completely counter to how most people intuitively think about debt. With an interest rate loan, paying off your balance faster than scheduled genuinely saves you money, since less interest accrues on a smaller remaining balance. With most factor rate products, the total amount owed is fixed the moment you sign, so repaying in half the expected time doesn’t reduce what you ultimately pay.
This matters enormously for how you should think about extra cash flow during a strong month. If you have a factor rate advance and a genuinely strong month brings in extra revenue, throwing that extra money at early repayment of the advance provides no cost savings under most factor rate structures, whereas that same extra cash might be better used building a reserve or funding a different opportunity entirely. Understanding this before you’re in the moment prevents a well intentioned but financially pointless decision.
Fees That Compound the Confusion Further
Beyond the core rate structure, both factor rate and interest rate products can include additional fees that further complicate an honest comparison. Origination fees, administrative charges, and in some cases early termination fees can meaningfully change the total cost picture beyond what the headline rate alone suggests. A factor rate offer with a low multiplier but a significant origination fee might actually cost more than a slightly higher factor rate with no additional fees attached.
The only way to catch this is asking directly for the complete, itemized total cost before accepting any offer, rather than assuming the advertised rate tells the whole story. Reputable lenders should be able to provide this figure clearly and without hesitation. Direct lenders including fundivi disclose the full repayment amount upfront before any commitment is required, which removes the guesswork that has historically made this specific corner of small business financing so difficult for owners to navigate confidently.
A Worked Example You Can Actually Use
Let’s walk through this with real numbers rather than staying purely theoretical. Say you’re comparing a $25,000 advance at a 1.28 factor rate against a $25,000 term loan at 24 percent interest repaid over twelve months. The factor rate offer is simple to calculate: $25,000 times 1.28 equals $32,000 total, meaning $7,000 in cost regardless of repayment speed.
The interest rate offer requires calculating the declining balance amortization, but a rough approximation for a twelve month term at 24 percent lands total interest somewhere around $3,200 to $3,400, meaning total repayment closer to $28,200 to $28,400. In this specific comparison, the interest rate offer costs meaningfully less in total dollars, even though the factor rate’s single number, 1.28, sounds smaller and less intimidating than 24 percent does on paper. This is exactly the kind of gap that catches business owners off guard when they compare offers by feel rather than by running the actual arithmetic side by side.
Building the Habit That Protects You Long Term
The real value of understanding this distinction isn’t just getting through one financing decision correctly. It’s building a habit that protects you every single time you evaluate an offer for the rest of your time running a business. Once you’ve internalized that the only number that matters is total dollars repaid for a specific amount over a specific timeline, you stop being vulnerable to whichever pricing format happens to sound more favorable on any given offer sheet.
My friend with the detailing business eventually chose the interest rate offer once we ran the actual numbers, since it turned out to be meaningfully cheaper for her specific situation. She told me afterward that the ten minutes we spent doing that math probably saved her more money than any other single financial decision she’d made that year. It wasn’t complicated math. It just required knowing which question to actually ask before signing anything.
If there’s a single habit worth carrying forward from all of this, it’s refusing to sign anything until someone can give you a straight answer to one specific question: what is the total dollar amount I will repay for this exact amount borrowed. Not a rate. Not a percentage. A dollar figure, stated plainly, that you can hold up next to any competing offer and compare directly. Any lender unwilling or unable to answer that question clearly is telling you something important about how they’d rather you not fully understand what you’re agreeing to.
