Add-To CD, Add-On CD
The bank allows the depositor to add funds during the term of the CD.

Brokered CD
Issued by an FDIC-insured bank but sold by a brokerage. If early withdrawal is required the brokerage may resell the CD at a profit or loss, depending on market conditions.

Bump-Up CD, Adjustable rate CD, Jump-Up CD
The depositor can adjust the rate (usually once) if it rises.

Callable CD
The institution can return the deposits plus accrued interest before the end of the term.

CDARS CD
The CD is FDIC-insured by up to $50 million. CDARS distributes the funds among its bank members. Rates are generally lower than for the top non-CDARS CDs.

Fixed rate CD
The rate of the CD is guaranteed for the length of the term.

Foreign currency CD
Some FDIC-insured US banks convert your US dollar deposit into one or more currencies and reconvert them back to US dollars at maturity. You may incur a profit or loss if the currencies appreciate or depreciate. 

Jumbo CD
CD of over $100,000 (some banks use $99,000, $95,000 or $90,000).

Liquid CD
There is no penalty for early redemption of the CD.

Mini CD
CD of less than $100,000 (some banks use $99,000, $95,000 or $90,000).

Step-Up CD, Step-Down CD, Step-Rate CD 
Rates change at different times during the term. Eg, a 4-year CD may have a rate of 4.60% during the 1st 12 months, 4.85% during the 2nd 12 months, 5.00% during the 3rd 12 months and 5.10% during the last 12 months; for a total of 5.00% APY. In other words, it would be equivalent to a 4-year CD @ 5.00%.

Variable rate CD
The rate of the CD can fluctuate during the term.