Let your money do the work for you & earn more today!

  • Low Minimums
  • No Lengthy Requirements
  • Easy Access to Your Money

How to Get Started

Open an account online in just 10 minutes and start saving more!

Fill out an application

Deposit Funds

Download our mobile app

Let your money do the work for you!

Features you expect with small town service you deserve.

Mobile and Online Banking

Access your money anywhere, anytime. Because banking should be simple.

Easy account transfers

With mobile and online banking features you can move your money between linked Grinnell State Bank accounts.

Mobile Deposit

Deposit checks on the go so your money can start working for you.

Exceptional Customer Service

Forget automated responses! Talk to our Personal Bankers via phone or online chat during regular banking hours.

Member FDIC

Your deposits in this savings account are FDIC-insured up to $250,000 per depositor.

Conveniently located ATMs

Make deposits and withdrawals 24/7 at our network of Privileged Status Shazam ATMs.

Account Details

Earn More From Your Money

This high-yield savings account allows you to simply deposit your money and start earning more than the FDIC national average savings rate¹.

One Account Per Tax ID

Open one (1) Simply Savings account per primary Tax ID/SSN. That’s one account for each member of the family so your money can work harder for you.

No Monthly Fees

On Balances over $100 there are no monthly service fees, so what you earn is what you keep! (**Transactional fees still apply.)

Low Minimums

There are low minimums, $100 minimum deposit, to open or maintain your high-yield Simply Savings account. No hoops to jump through, just deposit your money and earn a great rate!

Accessible Funds

6 withdrawals / debits per statement cycle without a service charge.**


Annual Percentage Yield (APY) is how much compound interest you will earn in a year. Our Simply Savings pays interest with each statement cycle. With rates much higher than FDIC national average savings rate, you can enjoy CD level interest rates without being locked into a lengthy term.

Some high-yield savings accounts require an opening deposit of $10,000, or more! You can open a Simply Savings account with Grinnell State Bank for a minimum deposit requirement of $100 and start earning more in just 15 minutes.

Other high-yield savings accounts require a certain minimum balance to earn the higher APY and avoid service fees. With Simply Savings, you can avoid a low balance fee and earn a great rate by maintaining a $100 available (collected) balance in your account.
Don’t be restricted from using your money when you need it! You can withdrawal from your Simply Savings up to 6 times per statement cycle without a fee.**

In these hard times, Simply Savings is a high-yeild savings account that offers more than your average savings account. With a return similar to that of a Certificate of Deposit (CD) this savings account gives you a higher return on your deposits with the freedom to access your funds, no limited terms.

Simply Savings the smarter way to save for a down payment on a home, saving for college, a family vacation, a vehicle, updating your home, and so much more.

How it works. We promise, it’s simple.

Example 1

You deposit $1,000 into a Simply Savings, you earn 3.00% interest on all of your funds, so your APY interest rate on your statement will show as 3.04%.

Example 2

You deposit $30,000 into a Simply Savings account you will earn 3.00% interest on the first $25,000. You will then earn 1.45% on the other $5,000 that you deposited. Therefore, when you see the APY interest rate on your statement, it will show as 2.77%.

Example 3

You deposit $90,000 into a Simply Savings. You will earn 3.00% interest on the first $25,000; 1.45% on the next $25,000; 1.50% on the final $40,000. Therefore when you see the APY interest rate on your statement, it will show as 1.92%.

Questions? Let’s Chat!

Forget automated responses! Use the Live Chat or call us at (800) 236-3187 to talk to one of our personal bankers. Our people are here to answer your call during normal banking hours.

Get Started Today!

What you need to open an account online:

  • $100
  • 18 years or older
  • Iowa Resident
  • Social Security Number (SSN) or Tax Identification Number (TIN)
  • Two forms of identification:
    • Driver’s License
    • State Issued ID
    • Military ID
    • Passport
You are advised to not include sensitive or confidential information (i.e. Social Security #, account #’s or pass code ID information etc.) within any “unencrypted” email communication.
Are you interested in opening a Simply Savings account?
100% Privacy Guaranteed. We will never sell your info.
This field is for validation purposes and should be left unchanged.

(1) on your first $25,000.00

(2) Rates are subject to change after the account is opened.  Fees assessed may reduce earnings on the account.

(3) The interest for this account is based on variable rates for each “Split Balance” tier. Interest will be paid on a Split Balance rate calculation method: When split balance rates are used, the portion of an account’s Available (Collected) Balance (AB) which is less than or equal to the first split balance amount earns interest on the first rate tier. The portion of an account’s (AB) which is less than or equal to the second split balance amount earns interest at the second rate tier. The portion of an account’s (AB) which is less than or equal to the third split balance amount earns interest at the third rate tier, and so on up to a maximum of six split balance amounts and six split interest rate tiers (shown above “Simply Savings Split Balance Tiers). The interest rate and overall Annual Percentage Yield (APY) will depend on the (AB) in the account according to the rate tier applied to each portion of the account balance. A $2.00 Low Balance Service Fee is charged when the Available (Collected) Balance (AB) is below $100.00 for the statement cycle. Interest is calculated daily based on the (AB) in the account for each individual day. Daily interest totals are then combined and applied to the account as a single interest total at the end of the statement period. The available balance is the account balance, less unpaid deposited items drawn on other financial institutions in the process of collection. Please E-mail us or contact a Personal Banker at one of our branches for current rate information.

**All Simply Savings accounts will incur a $2.00 charge per withdrawal/debit over 6 per statement cycle.

Rates valid as of February 3, 2023.

Important Information about Procedures for Opening a New Account: To help the government fight the funding of terrorism and money laundering activities, Federal Law requires all financial institutions to obtain, verify, and record information that identifies each person or business that opens an account. What this means for you: When you open an account, we will ask for your name, address, date of birth, and other information that allows us to identify you. We may also ask to see your driver’s license or other identifying documents.


Bringing the Bank to you

We want to make banking easy for you with 24/7 access to your accounts and convenient access to services. Have 24/7 access to all of the following without having to step foot in the bank:

For a printable version of Reg E:

 You are accessing a printable version of our Electronic Funds Transfer.

For a printable version of our Privacy Policy:


You are accessing a printable version of Grinnell State Bank’s Online Banking Terms and Conditions. There are hyperlinks appearing within the document to access additional bank policy information referenced by the link. The links are for reference only, please contact the bank directly to request a copy of the referenced information.