Money market account rates have been decreasing, making it crucial to compare rates and maximize earnings. The national average money market account rate is currently 0.59%, significantly higher than three years ago. Some top accounts are offering over 4% APY, so consider opening an account now to benefit from high rates. Interest earned from a money market account depends on the annual percentage rate (APY) and compounding frequency. Comparing a 0.59% rate to a 4% APY, the latter would yield $408.08 more in interest on a $10,000 deposit after one year. While some banks offer promotional rates as high as 7%, these are typically limited-time offers with restrictions.

Read more at Yahoo Finance: Best money market account rates today, September 20, 2025 (best account provides 4.4% APY)