You are sitting in a meeting with a potential lender or perhaps reading the fine print of a payment processor contract. You see the term basis points or the acronym BPS. In conversation, you might even hear someone refer to them as bips. If you have not spent time on a trading floor, this term might feel like unnecessary jargon designed to confuse you.
It is actually the opposite. It is designed for extreme precision.
Basis points are a unit of measure used in finance to describe the percentage change in the value or rate of a financial instrument. The fundamental math is simple.
One basis point is equal to 1/100th of 1%.
The Math Behind the Acronym
#When you are building a financial model or negotiating a term sheet, you cannot afford rounding errors. Here is how the conversion works so you can do the mental math quickly.
- 1 basis point = 0.01%
- 10 basis points = 0.10%
- 50 basis points = 0.50%
- 100 basis points = 1.00%
- 10,000 basis points = 100%
If the Federal Reserve raises interest rates by 25 basis points, they are raising the rate by 0.25%. If a payment processor charges you interchange plus 150 bps, they are charging the base rate plus 1.5%.
Why Use BPS Instead of Percentages?
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The primary reason finance professionals use basis points is to eliminate ambiguity. We use them to distinguish between a change in percentage points and a change in the relative percentage.
Imagine your current interest rate on a bridge loan is 10%. The lender tells you the rate is going to increase by “ten percent.”
Does that mean the new rate is 20% (10% + 10%)?
Or does it mean the new rate is 11% (10% x 1.10)?
That confusion can cost a company thousands of dollars or ruin a relationship. By using basis points, the lender can say the rate is increasing by 100 bps. You immediately know the new rate is 11%. It removes the linguistic confusion between absolute and relative changes.
Common Scenarios for Founders
#You might think this only matters for public markets or macroeconomics. However, basis points show up frequently in the day to day operations of a growing startup.
Payment Processing Fees When you move beyond flat-rate payment processors like Stripe or PayPal, you will likely encounter “interchange plus” pricing. Merchant service providers will quote their markup in basis points. Knowing that a reduction of 20 bps on $10 million in volume saves you $20,000 goes straight to your bottom line.
Debt Covenants and Loans If you take on venture debt or a line of credit, the interest rate is often variable. It is usually tied to a benchmark rate like SOFR plus a spread. That spread is often discussed in basis points.
Equity Negotiations While less common, you may hear basis points used during warrant coverage negotiations or option pool shuffles. When you are fighting for every sliver of ownership, discussing 50 bps feels more substantial than saying half a percent, even though they are the same.
Are you looking at your current contracts and wondering where basis points are hiding fees? It is worth doing the math to find out.