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Todayâs Prime Rate. The prime rate today is 3.25%. This prime rate has been in effect since the Fed Funds rate was lowered to 0%-0.25% back in December of 2008. So, 0.25% + 3% = 3.25% (todayâs prime rate). This is the longest period of prime rate stability in history.
Click here for Prime Rate history for 1990-1999, 1980-1989, or 1975-1979. Click here for more ARM indexes. The prime rate is currently defined by The Wall Street Journal (WSJ) as The base rate on corporate loans posted by at least 70% of the nation's 10 largest banks. It is not the 'best' rate offered by banks. This definition has changed over time.