When you purchase a CD your money will be locked in at a fixed interest rate for a predetermined span of time. The CD account is a savings tool that will promise you more interest than you would get with an ordinary savings account or a money market account. This is because you cannot get your hands on your money for the duration of the certificate of deposit. This is a conservative method of saving money and is good for those who wish to invest with as little risk as possible.
You should purchase a certificate of deposit if you know when you will want to withdraw the money. Bear in mind that you will have to pay a stiff fee if you choose to withdraw the money early. To test the waters you might want to open a CD account for a six-month period and see how you do with that. Some banks permit you to purchase a CD for a three-month period. Once the term is over you can either withdraw your money or roll it over into a longer time period. You are also permitted to add more funds to the CD at this time.
CDs are meant for short periods of time. The average amount of time is five years. If you want to go beyond that length of time then look to other forms of investing such as mutual funds. If you are looking at investing for a short length of time then CDs are smart but so are money market accounts. The CD rate will not automatically rise if interest rates do but a money market account will rise. The interest rates are closely connected to what is currently happening in the financial market. During times when the interest rates are close a money market account may be more advantageous to you than opening up a CD account.
If you are not well versed in financial matters then it would not hurt you to take a crash course in such. The Internet offers plenty of resources for information and you can also browse your local library or bookstore for reading material that can help you become better acquainted with investing.