The best CD rates today reach up to 5.06%, varying based on certificate term lengths.Certificates of deposit (CDs) offer fixed interest rates and maturity periods, typically yielding better returns than high-yield savings accounts.CD holders face withdrawal fees and penalties, with longer terms resulting in harsher penalties for early withdrawals.Current top CD rates include 4.72% for three-month CDs and 4.94% for six-month CDs.For one-year CDs, the highest rate is 5.02%, while two-year CDs offer rates as high as 4.52%.Three-year CDs have a top rate of 4.65%, and five-year CDs offer rates up to 4.43%.Jumbo CDs require higher minimum deposits, with rates reaching 4.94% for a 6-month term.Traditional banks usually offer lower CD rates compared to online banks.CDs require a lump-sum deposit, have minimum deposit requirements, and may impose early withdrawal penalties.CDs serve as a safe investment option with fixed returns, protected by the FDIC or NCUA up to $250,000.