What Is a Bump-Up CD?
Locking in a CD rate feels safe right up until rates climb after you’ve committed. A bump-up CD is built specifically around that regret.
The short answer
A bump-up CD is a certificate of deposit that gives the holder the option, usually once during the term, to request an increase to the account’s interest rate if the bank’s rate for that same CD type has risen since the account was opened. It’s a way to capture some benefit if rates go up during the term, without giving up the CD structure entirely — though it typically starts at a lower rate than a comparable standard CD to offset that flexibility.
How the “bump” actually works
When opening a bump-up CD, the saver locks in an initial rate just like with any CD. If the bank later raises the rate it offers on new CDs of that same term, the accountholder can typically request one adjustment upward to match the new, higher rate for the remainder of the term. This is usually a one-time option — using it locks in the new rate, and a second increase generally isn’t available even if the bank’s rates rise again later. It’s also a one-directional feature: if rates fall after opening, the original rate stays in place rather than being adjusted downward.
What it costs to get that option
Banks and credit unions generally price a bump-up CD with a starting rate below what a standard CD of the same term would offer, since the option to raise it later has value to the saver and a cost to the institution. Whether that trade-off pays off depends entirely on what happens to rates during the term — if rates never rise, the bump-up CD may end up paying less overall than a standard CD locked in at the higher initial rate would have. The option only helps if it actually gets used.
Comparing it to other flexible CDs
A bump-up CD solves a different problem than a no-penalty CD. A no-penalty CD addresses the risk of needing the money early; a bump-up CD addresses the risk of missing out on a rate increase. They can sometimes overlap in a single product, but typically a saver has to choose which flexibility matters more for a given deposit. Another comparable approach is building a CD ladder, which manages rate uncertainty by staggering maturity dates across several standard CDs rather than relying on a single option to adjust one CD’s rate.
When the option is worth using
Because the bump is usually limited to one use, timing matters. Requesting the increase too early, right after a small rate bump, could mean missing a larger increase later in the term — but waiting too long risks the term ending before the option is ever exercised. There’s no way to know in advance which choice will turn out best, since future rate movements aren’t predictable, and it’s worth checking the specific terms of a given account, including whether there’s a deadline for requesting the bump before maturity.
The takeaway
A bump-up CD offers a narrow, specific kind of flexibility: the ability to adjust a locked-in rate upward once, if the bank’s own rates happen to rise during the term. It suits savers who want a CD’s structure but are uneasy about missing a future rate increase, understanding that the starting rate is usually a bit lower as the cost of that possibility. As with any CD, comparing the actual terms, rates, and conditions across institutions matters more than the label on the product.