Competing CDs can differ in multiple ways. Factors to consider when deciding which option is best for you include: Earnings: The rate you earn from a CD is one of the most important aspects. Credit unions typically quote an annual percentage yield (APY), which helps you compare offerings from different places. APY accounts for compounding, so you don’t need to pay attention to compounding frequency if you use this measure. If you compare interest rates (but not APY), CDs with daily compounding are best, all other things being equal. Safety: Verify that you buy CDs from a credit union that’s federally insured. NCUSIF insurance is backed by the U.S. government, and your funds are protected up to $250,000 per depositor per institution. Flexibility: As you evaluate CDs, review early-withdrawal policies. You may need to get your money before maturity, and it’s nice to know how much you’ll pay to do so. If multiple credit unions offer similar rates, consider using CDs with the most liberal early-withdrawal penalties. Minimum Deposit: Before you commit to a credit union, investigate the minimum purchase requirements for CDs. Depending on how much you have to work with, that may determine where you open an account. CD minimums of $500 are not uncommon, but some institutions require $2,500 or more.