Glossary term
Prime Rate
The prime rate is a benchmark lending rate posted by major banks and often used to price business loans, credit cards, and other variable-rate credit.
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What Is the Prime Rate?
The prime rate is a benchmark lending rate posted by major banks. It is often used as a base rate for short-term business loans, credit cards, home equity lines of credit, and other variable-rate credit products.
The Federal Reserve does not directly set the prime rate. Banks set their own prime rates, but those rates often move with the federal funds target range because bank funding conditions and short-term rates are connected.
Key Takeaways
- The prime rate is a bank-posted benchmark lending rate.
- It often moves after Federal Reserve policy rate changes.
- Many variable-rate loans are priced as prime plus a margin.
- The prime rate is not automatically the rate every borrower receives.
How the Prime Rate Works
A lender may price a loan as the prime rate plus or minus a margin. For example, a credit product could be priced at prime plus 3 percentage points. When the prime rate changes, the borrower's rate may adjust according to the loan agreement.
The Federal Reserve reports a bank prime loan rate in its H.15 statistical release. That reported rate reflects the prime rate posted by a majority of the largest U.S.-chartered commercial banks.
Where It Shows Up
Product | How Prime May Matter |
|---|---|
Credit cards | Variable APR may be tied to prime plus a margin |
Home equity lines of credit | Rate may adjust when prime changes |
Small business loans | Pricing may be expressed as prime plus a spread |
Commercial credit lines | Prime can serve as a floating-rate benchmark |
What Borrowers Should Watch
The important number is not only the prime rate. The margin, adjustment timing, caps, fees, and repayment terms determine the actual cost. Two borrowers can both have prime-based loans and pay very different rates.
When short-term rates rise, prime-based borrowing can become more expensive quickly. When rates fall, the benefit depends on the loan's adjustment terms.
The Bottom Line
The prime rate is a widely used bank lending benchmark, not a universal customer rate. Borrowers should read the full formula: prime rate, margin, fees, caps, and reset rules together determine the cost.