Multiple U.S. banks offered six-month certificates of deposit with annual percentage yields above 4% in April 2026, enabling a $10,000 deposit to earn as much as $205.39 in interest over the term. The returns from these CDs exceeded those available through high-yield savings accounts at comparable rates, where the same deposit amount would earn approximately $199.51 over six months at a 4.03% annual percentage yield.

The interest generated by a six-month CD varied depending on the specific rate offered by each institution. A $10,000 deposit placed into a six-month CD carrying a 4.05% APY earned $200.49 in interest upon maturity. At a rate of 4.10% APY, the same $10,000 deposit earned $202.94 over the six-month term. At 4.15% APY — the highest rate observed in the comparison — that deposit earned $205.39 when the CD reached maturity.

A six-month certificate of deposit account employs a fixed interest rate that does not change during the term, providing depositors with a predetermined return from the moment the funds are committed to the account. High-yield savings accounts, by contrast, have variable interest rates that can change based on market conditions, making interest-earning projections over a six-month horizon speculative.

High-yield savings accounts produced somewhat lower returns on an equivalent $10,000 balance over the same six-month period. At 4.00% APY, a high-yield savings account generated $198.04 in interest after six months. At 4.02% APY, the earnings on the same deposit amount rose to $199.02 over the same timeframe. At 4.03% APY, the total interest figure reached $199.51 after six months.

The difference between the top CD rate of 4.15% APY and a high-yield savings account rate of 4.03% APY amounted to approximately $5.88 in additional interest over six months on a $10,000 deposit. That gap widened further when comparing the top CD rate to the 4.00% savings rate, where the CD produced $7.35 more in interest over the same period.

High-yield savings accounts allow depositors to access their funds without early withdrawal penalties. CDs typically impose penalties on depositors who withdraw funds before the maturity date.