Bounty

American Bank & Trust Savings bonus: is $100 worth it?

What it adds over what your cash earns now, tier by tier. Change the rate to yours.

+$100: more than leaving it at 4.15%
With the bonus73000%
Leave it where it is4.15%

Yearly rate on $50 while it's there, bonus included.

The math

Compared with leaving $50 at 4.15%

Bonus
+$100
Interest while it's there
0.01% for 1 day
$0
What it'd earn at home
$50 at 4.15% for 1 day
$0
Extra
+$100
Works out to 73000% a year on that cash, vs 4.15% at home.

Enroll in Save Your Change program within the promotional period… · Enroll in eStatements within 30 days of account opening · Deposit $50 in new money within 1 day. Terms checked Oct 10, 2026.

About this bonus

What it takes

  1. 1Enroll in Save Your Change program within the promotional period…
  2. 2Enroll in eStatements within 30 days of account opening
  3. 3Deposit $50 in new money within 1 day
Ends
Oct 31, 2026
Where
South Dakota, Minnesota
Pays while it's there
0.01% a year
Monthly fee
None
Closing early
$25 within 90 days
Cash stays
About 1 day
Bonus paid
Usually within 45 days of finishing

Similar bonuses

The same kind of account, ranked by what each adds at 4.15%.

Questions

Is the American Bank & Trust Savings bonus worth it?

At 4.15%, about what T-bills or a money market fund pay (as of Oct 12, 2026), the $50 tier adds +$100: the $100 bonus, minus the $0 that cash would have earned in 1 day. At a different rate the answer changes; the calculator on this page works it out for yours.

What are the requirements?

Enroll in Save Your Change program within the promotional period…; enroll in eStatements within 30 days of account opening; deposit $50 in new money within 1 day. Open to residents of South Dakota, Minnesota.

When does it end?

The offer ends Oct 31, 2026. The terms were last checked Oct 10, 2026.