How CDs Work 2026
A certificate of deposit is a savings product that trades flexibility for a guaranteed, fixed return over a set term โ understanding the mechanics helps you use CDs effectively.
The Basic Mechanics
When you open a CD, you deposit a lump sum and agree not to withdraw it until the term ends (the maturity date). In exchange, the bank guarantees a fixed interest rate for that entire period, regardless of what happens to market rates afterward. At maturity, you receive your original deposit plus all accrued interest, and can withdraw the funds, roll them into a new CD, or let the bank auto-renew the CD at the current rate.
What Happens at Maturity
Most banks provide a grace period, typically 7-10 days after maturity, during which you can withdraw funds penalty-free or choose a different CD term. If you take no action, most banks automatically renew the CD for the same term length at whatever rate is currently offered โ which may be different from your original rate. Setting a calendar reminder for your CD's maturity date helps you avoid an unwanted auto-renewal at an uncompetitive rate.
Frequently Asked Questions
This varies by bank โ some pay interest monthly (which you can have deposited into another account), while others compound and pay out only at maturity. Check your specific CD's terms if payment timing matters to you.
Yes, custodial CDs are available at many banks, allowing a parent or guardian to open and manage a CD on behalf of a minor, similar to custodial savings accounts.