Skip to main content

Interest Rate

An interest rate is the percentage charged by a lender for borrowing money, or the percentage earned on deposited funds. It's the cost of using someone else's money (when you borrow) or the reward for letting someone use yours (when you save). Interest rates are typically expressed as an annual perc

Interest Rate Definition

An interest rate is the percentage charged by a lender for borrowing money, or the percentage earned on deposited funds. It's the cost of using someone else's money (when you borrow) or the reward for letting someone use yours (when you save). Interest rates are typically expressed as an annual percentage and are one of the most important factors in every financial decision a business makes.

Interest Rate in Practice — Example

A nonprofit takes out a $100,000 loan at 7% annual interest to renovate their community center. Over the first year, they'll pay $7,000 in interest alone. If the loan is amortized over 10 years, total interest paid will be approximately $39,000 — meaning the renovation actually costs $139,000. Meanwhile, the nonprofit keeps $50,000 in a business savings account earning 1.75% APY, generating $875 in interest income that year. The spread between what they earn and what they pay is the real cost of the loan.

Why Interest Rate Matters for Your Business

Interest rates affect virtually every financial decision: whether to take a loan, lease or buy equipment, carry inventory, offer payment terms to customers, or hold cash in savings. Even a 1-2% difference in rates can mean thousands of dollars over the life of a loan. Understanding rates helps you time major financial decisions and negotiate better terms.

Rising interest rates make borrowing more expensive but savings more rewarding. Falling rates make it cheaper to borrow but reduce returns on your deposits. Smart business owners pay attention to rate trends and adjust their strategy — refinancing when rates drop, locking in fixed rates when increases are expected, and keeping excess cash in the highest-yield accounts available.

How Interest Rates Work

Key types:

TypeDescription
Fixed RateStays the same for the life of the loan
Variable RateChanges with a benchmark rate (like SOFR or Prime)
APRIncludes interest plus fees — the true cost of borrowing
APYIncludes compound interest — the true return on savings

Simple interest formula:

Interest = Principal × Rate × Time

Compound interest formula:

A = P(1 + r/n)^(nt)

Where: P = principal, r = annual rate, n = compounding periods/year, t = years

What influences business loan rates:

  • Federal funds rate (set by the Federal Reserve)
  • Your credit score and business history
  • Loan amount and term
  • Collateral offered
  • Industry risk
  • Interest Rate vs APR

    The interest rate is just the cost of borrowing the principal. APR (Annual Percentage Rate) includes the interest rate PLUS origination fees, closing costs, and other charges — making it the more accurate measure of what a loan actually costs. Always compare APR, not just the stated interest rate, when shopping for loans.

    FAQ

    Q: How do I get a lower interest rate on a business loan? A: Improve your credit score, offer collateral, make a larger down payment, shop multiple lenders, and consider SBA loans which often have favorable rates. Building a relationship with your bank also helps.

    Q: Is a fixed or variable rate better for my business? A: Fixed rates provide predictability — great for budgeting. Variable rates are often lower initially but carry risk if rates rise. If you're risk-averse or rates are historically low, lock in a fixed rate.

    Related Terms

  • Line of Credit
  • Mortgage
  • Inflation
  • Hard Inquiry
  • Money Market Account
  • > Need a business bank that actually makes sense? Holdings offers free checking, 1.75% APY, and AI-powered bookkeeping. Open a free account →

    Related Terms