Which CD Terms Offer the Best Rates and Returns This September?

In many cases, 6-month and 12-month CDs are strong contenders because they balance competitive APYs with flexibility. Longer terms (18–36 months) can pay more, but you tie up funds longer. The “best” option depends on current rate offers from your bank and whether you might need access to cash before maturity.

You should primarily compare APY (annual percentage yield), since it reflects the effect of compounding over a year. APR (annual percentage rate) typically doesn’t account for compounding the same way. Two CDs with the same APR can produce different APYs, so APY is the more direct measure for comparing returns.

Most CDs impose an early withdrawal penalty, often equal to a set number of months of interest. This penalty can significantly reduce your returns, and you may even lose part of the principal depending on the bank’s terms. Before choosing a term, check the penalty schedule and whether there’s a “no-penalty” option.

A CD ladder involves splitting your money across multiple maturity dates (for example, 3, 6, 12, and 18 months). As each CD matures, you can reinvest at the then-current rates, potentially reducing the risk of locking everything into one rate. It also improves liquidity compared with a single long-term CD.

Waiting can work if rates rise, but it also risks finding similar or lower offers later. If you expect uncertainty, laddering or choosing a medium-term CD (like 9–12 months) can provide a compromise. Evaluate your time horizon and check whether your top competing banks’ offers change frequently.

Most traditional CDs offered by FDIC-insured banks are covered up to the FDIC limit per depositor, per insured bank, per ownership category. That means your funds are generally protected if the bank fails, up to the coverage cap. Always confirm the institution is FDIC-insured and understand how your accounts are categorized.