All Ally high yield CDs do not have a required amount to open the account. You can open each of the CDs with any amount. The Raise Your Rate CDs and the No Penalty CD do not have a set amount required to open.

Ally CDs offer competitive interest rates. The rates are competitive with other online CD accounts. The interest rates for Ally CDs are much higher than typical bank rates.

There are a wide variety of CDs offered through Ally. They offer seven high yield CDs. Those terms range from three months to five years. Ally offers a Raise Your Rate CD. These CDs are available in two-year and four-year terms. They also offer a No Penalty CD. This CD is an eleven-month term.

Ally offers a Ten-Day Best Rate Guarantee for each of the different CDs. When you open your CD, you have ten days. If interest rates go up within that time, so does your interest rate for the CD. The best rate guarantee is also available when you are renewing your CD.

The No Penalty CD has high opening amounts to earn the most competitive rates. Balances under $5,000 earn the lowest rates. To earn the most competitive rate for the CD requires a minimum opening balance of $25,000. Balances over $5,000 but less than $25,000 receive an interest rate between the two rates.

Interest earned from Ally CDs is generally credited annually. If your CD is a one-year term or less, they credit your interest at the CD maturity. If your CD term is longer than one year, they credit your interest at your CD terms year-end. You can make some changes to your CDs through the Ally website.

Some Ally CD accounts have tiered interest rates. To earn the most competitive interest rate for your account requires a balance of $25,000. There is not a required amount to open these CDs, but the higher the account balance, the higher the rate you earn.

The Ally No Penalty CD allows you to withdraw your money anytime after the first six days. You cannot make a partial withdrawal of the funds. If you are going to withdraw the money, you must withdraw the entire CD balance.

Read the full Ally Bank review.

Most American Express Personal Savings CDs offer competitive interest rates. The terms 18-months or longer offer rates that are competitive with other online CDs. These rates are much higher than typical bank rates. The interest rates for American Express CDs are not tiered. Any amount in the account earns the most competitive interest rate.

American Express offers a variety of ways to receive the interest earned off their CDs. You can request a check mailed monthly, each quarter, or once a year. You can transfer the money into another American Express account or a linked account. You can also leave the money in the CD account. American Express gives options to withdraw interest, but it will reduce your earnings. Contact customer service to initiate these options.

There is no set amount required to open American Express CDs. You can open each of the different CD terms with any amount. There is no monthly fee or no required amount to keep in the account to earn interest.

American Express Personal Savings offers a good variety of CD terms. The terms range from 6-months to 60-months. There are seven total CD terms to choose from.

The shortest American Express CD terms have lower interest rates. These term rates are not competitive with other online CDs of the same length. The six-month and 12-month terms do not offer as competitive interest rates as the other American Express CDs.

American Express does not allow partial withdrawals from the CD before maturity. If you need to withdraw money before the maturity date, you must withdraw the entire CD balance. As with all CDs, if you withdraw money before maturity, there is a fee assessed.

The early withdrawal fees for American Express CDs are high. If your CD is less than 12 months, the fee is 90 days of interest. For terms from 12 months to less than 48 months, the fee is 270 days of interest. CD terms from 48 months to less than 60 months, the fee is 365 days of interest. The fee for 60-month terms or longer is 540 days of interest. If you have not earned enough interest to cover the fee, the rest is taken from the CD principal.

American Express Personal Savings does not guarantee to get customers the highest interest rate. The interest rate you receive for the CD term is the rate on the day you fund your account. The interest rate is fixed. It is locked in for the life of the term.

Read the full American Express review.