What Is a Teaser Rate on a Savings Account?
A savings account advertising a strikingly high rate is often telling the truth, just not the whole story, since that rate frequently applies for a limited stretch of time rather than for as long as the money stays deposited.
The short answer
A teaser rate is a temporarily elevated interest rate that a bank offers on a savings account, usually for new customers or new deposits, for a limited introductory period, often a few months. After that period ends, the rate typically drops to the account’s standard ongoing rate, which can be noticeably lower. The teaser rate is a real rate during its window, but it isn’t the rate the account is expected to pay indefinitely.
Why banks offer them
Teaser rates function primarily as an acquisition tool, drawing in new deposits or new customers by advertising a rate more attractive than the account’s typical yield. Banks calculate that the cost of paying a higher rate temporarily is worth it if it results in a longer-term customer relationship or a larger base of deposits once the promotional period ends. It’s a similar logic to introductory offers seen elsewhere in banking, where an attractive initial term is used to establish an account or product that continues after the promotion fades.
What typically happens after the introductory period
Once the teaser period ends, the account’s rate generally reverts to a standard rate set by the bank, which moves independently of the original promotion and can change over time along with broader interest rate conditions. Some banks notify customers directly when the rate is about to change, but not all do so clearly, which means the account can quietly start earning meaningfully less without an obvious signal unless someone is tracking the actual rate being paid. Checking a high-yield savings account’s ongoing rate, not just its advertised rate, is the way to know what to expect after the introductory window closes.
Reading the fine print
Teaser rate offers often come with conditions beyond the time limit — a cap on the balance eligible for the higher rate, a requirement to maintain a minimum deposit, or a restriction that the rate applies only to new money rather than funds transferred from an existing account at the same bank. These conditions can significantly change how much extra interest is actually earned during the promotional period, so the advertised percentage alone doesn’t tell the full story without checking what it actually applies to.
Comparing accounts with this in mind
Because teaser rates are temporary by design, comparing savings accounts purely on their advertised introductory rate can be misleading. A more complete comparison looks at the rate after the promotional period ends, since that’s the rate the account will likely pay for the majority of the time the money sits there. This is one of the details worth factoring in alongside other criteria when choosing a bank account, rather than being swayed by the headline number alone.
The takeaway
A teaser rate is a genuine, if temporary, benefit, and there’s nothing wrong with taking advantage of one deliberately. The key is treating the advertised rate as a starting point rather than a permanent feature, checking what the rate reverts to and when, and factoring that ongoing rate into any real comparison between accounts.