$18,000 CD vs. $18,000 high-yield savings account vs. $18,000 money market account: Which will earn the most in 2026?

The interest-earning potential of CDs, high-yield savings and money market accounts are similar but they aren't identical right now. Jamie Grill High-yield savings accounts . Money market accounts . Certificates of deposit (CDs) . Traditionally, these account types have provided savers with safe and effective ways to protect and grow their money. And, in recent years, they became critical tools to offset inflation, with rates on some as high as 6% or 7% . While they're not nearly as profitable as they were in 2024 and 2025, however, they can still serve as viable homes for your money, whether that's a large amount such as $50,000 or something smaller like $18,000 . At the same time, they don't operate identically, with the CD account offering a fixed rate to savers while high-yield savings and money market accounts come with variable rates. The rates on all three aren't identical, either, meaning that the interest-earning power with an $18,000 deposit will look different, especially over multiple months. If you're looking to maximize your return, it helps to know which of the three can best accomplish that goal. Below, we'll do the math. See how much interest you could be earning with a CD account here . $18,000 CD vs. $18,000 high-yield savings account vs. $18,000 money market account: Which will earn the most in 2026? CD interest rates will vary by the term (or length) of the account as well as the bank in question. …