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Vio Bank Cornerstone Money Market Savings Review: Strong APY and Low Minimum Opening Deposit Requirement

Review Updated
David Chang, ChFC®, CLU®
Nathan Alderman
Many or all of the products here are from our partners that compensate us. It’s how we make money. But our editorial integrity ensures that our product ratings are not influenced by compensation. APY = Annual Percentage Yield.

Vio Bank is an online banking option that is backed by the largest privately held bank in the United States, MidFirst Bank. One of the appealing features of the bank is its Vio Bank Cornerstone Money Market Savings account, which offers a competitive interest rate and no monthly fees as long as you agree to receive electronic statements.

With a minimum deposit of $100, this account is a great option for those looking to grow their savings without having to constantly worry about fees eating up their earnings. And, with FDIC insurance, you can rest assured that your money is safe and secure in this account.

Ratings Methodology
Rates as of Apr 11, 2025

Vio Bank Cornerstone Money Market Savings

Member FDIC.
Rating image, 4.50 out of 5 stars.
4.50/5 Circle with letter I in it. Our ratings are based on a 5 star scale. 5 stars equals Best. 4 stars equals Excellent. 3 stars equals Good. 2 stars equals Fair. 1 star equals Poor. We want your money to work harder for you. Which is why our ratings are biased toward offers that deliver versatility while cutting out-of-pocket costs.
= Best
= Excellent
= Good
= Fair
= Poor
Rating image, 4.50 out of 5 stars.
4.50/5 Circle with letter I in it. Our ratings are based on a 5 star scale. 5 stars equals Best. 4 stars equals Excellent. 3 stars equals Good. 2 stars equals Fair. 1 star equals Poor. We want your money to work harder for you. Which is why our ratings are biased toward offers that deliver versatility while cutting out-of-pocket costs.
= Best
= Excellent
= Good
= Fair
= Poor
Monthly Fee
$0
Min. Balance
$100
APY
4.46%
Min. To Earn APY
$0
  • Competitive interest rates
  • No monthly fee with electronic statements
  • Low minimum
  • No debit card or check-writing privileges
  • No physical branches
  • No ATM network

Vio Bank is the online bank division of MidFirst Bank, the largest privately held bank in the United States and an FDIC member. It offers a competitive rate for its Money Market Savings Account and no monthly fees as long as you agree to electronic statements. There is a $100 minimum deposit with this account and it is FDIC insured.

The online bank has no physical branches and no ATM network. This makes accessing cash on the go a little more difficult. The online bank does not offer a checking account so you are limited to only a few products in its lineup.

Compare savings rates

Make sure you're getting the best account for you by comparing savings rates and promotions. Here are some of our favorite high-yield savings accounts to consider.

Account APY Promotion Next Steps
up to 3.80%²
Rate info Circle with letter I in it. You can earn the maximum APY by having Direct Deposit (no minimum amount required) or by making $5,000 or more in Qualifying Deposits every 30 days. See SoFi Checking and Savings rate sheet at: https://www.sofi.com/legal/banking-rate-sheet.
Min. to earn: $0
New customers can earn up to a $300 bonus with qualifying direct deposits!¹
4.10% APY for balances of $5,000 or more
Rate info Circle with letter I in it. 4.10% APY for balances of $5,000 or more; otherwise, 0.25% APY
Min. to earn: $100 to open account, $5,000+ for max APY
Earn a bonus of at least $225 after a one-time deposit of $25,000+. Circle with letter I in it. Transfer a one-time deposit of $25,000-$49,999.99 for a bonus of $225. Transfer a one-time deposit of $50,000+ for a bonus of $300. Account must be opened with code PS2025 while this promotion lasts, and funded within 30 days. Bonus will be fulfilled within 60 days from the funding date. There is no period of time where the customer will be required to maintain the funds. Account must be open when bonus is credited. One bonus per account and primary customer. Bonus will be credited into the Platinum Savings Account that fulfills the funding requirement. Funding can be deposited all at once or incrementally.
3.70%
Rate info Circle with letter I in it. 3.70% annual percentage yield as of April 11, 2025. Terms apply.
Min. to earn: $0
N/A
Open Account for American Express® High Yield Savings

On American Express's Secure Website.

Disclaimers



SoFi disclosure:

¹ New and existing Checking and Savings members who have not previously enrolled in Direct Deposit with SoFi are eligible to earn a cash bonus of either $50 (with at least $1,000 total Direct Deposits received during the Direct Deposit Bonus Period) OR $300 (with at least $5,000 total Direct Deposits received during the Direct Deposit Bonus Period). Cash bonus will be based on the total amount of Direct Deposit. Direct Deposit Promotion begins on 12/7/2023 and will be available through 1/31/26. See full bonus and annual percentage yield (APY) terms at sofi.com/banking#1.

² SoFi members who enroll in SoFi Plus with Direct Deposit or by paying the SoFi Plus Subscription Fee every 30 days or with $5,000 or more in Qualifying Deposits during the 30-Day Evaluation Period can earn 3.80% annual percentage yield (APY) on savings balances (including Vaults) and 0.50% APY on checking balances. There is no minimum Direct Deposit amount required to qualify for the stated interest rate. Members without either SoFi Plus or Qualifying Deposits, during the 30-Day Evaluation Period will earn 1.00% APY on savings balances (including Vaults) and 0.50% APY on checking balances. Only SoFi Plus members are eligible for other SoFi Plus benefits. Interest rates are variable and subject to change at any time. These rates are current as of 1/24/25. There is no minimum balance requirement. Additional information can be found at http://www.sofi.com/legal/banking-rate-sheet. See the SoFi Plus Terms and Conditions at https://www.sofi.com/terms-of-use/#plus.

³ We do not charge any account, service or maintenance fees for SoFi Checking and Savings. We do charge a transaction fee to process each outgoing wire transfer. SoFi does not charge a fee for incoming wire transfers, however the sending bank may charge a fee. Our fee policy is subject to change at any time. See the SoFi Checking & Savings Fee Sheet for details at sofi.com/legal/banking-fees/.

⁴ SoFi Bank is a member FDIC and does not provide more than $250,000 of FDIC insurance per depositor per legal category of account ownership, as described in the FDIC’s regulations.

Any additional FDIC insurance is provided by the SoFi Insured Deposit Program. Deposits may be insured up to $3M through participation in the program. See full terms at SoFi.com/banking/fdic/sidpterms. See list of participating banks at SoFi.com/banking/fdic/participatingbanks.

We’ve partnered with Allpoint to provide you with ATM access at any of the 55,000+ ATMs within the Allpoint network. You will not be charged a fee when using an in-network ATM, however, third-party fees incurred when using out-of-network ATMs are not subject to reimbursement. SoFi’s ATM policies are subject to change at our discretion at any time.

Early access to direct deposit funds is based on the timing in which we receive notice of impending payment from the Federal Reserve, which is typically up to two days before the scheduled payment date, but may vary.

Overdraft Coverage is limited to $50 on debit card purchases only and is an account benefit available to customers with direct deposits of $1,000 or more during the current 30-day Evaluation Period as determined by SoFi Bank, N.A. The 30-Day Evaluation Period refers to the “Start Date” and “End Date” set forth on the APY Details page of your account, which comprises a period of 30 calendar days (the“30-Day Evaluation Period”). You can access the APY Details page at any time by logging into your SoFi account on the SoFi mobile app or SoFi website and selecting either (i) Banking > Savings > Current APY or (ii) Banking > Checking > Current APY. Members with a prior history of non-repayment of negative balances are ineligible for Overdraft Coverage.

Full Vio Bank Cornerstone Money Market Savings account review

Top perks

The Vio Bank Cornerstone Money Market Savings account offers appealing benefits for those seeking to open a new account.

Competitive interest rates: Vio offers some of the best rates in the industry. The bank regularly monitors the competition to ensure its rates are some of the best in the nation.

No monthly fees: The Vio Bank Cornerstone Money Market Savings account has no monthly account fees whatsoever, as well as no minimum balance fees, if you opt for e-statements. There is a $5 monthly fee if you receive paper statements.

Low minimum deposit: The Vio Bank Cornerstone Money Market Savings account has a $100 minimum opening deposit requirement. Many of the other best money market accounts have minimums that are much higher.

FDIC insurance: Given the recent banking climate, it's worth pointing out that money market accounts like the Vio Cornerstone are FDIC insured for up to $250,000 per depositor.

What could be improved

The Vio Bank Cornerstone Money Market Savings account may not be the perfect bank account for everyone. Here are some potential drawbacks you should be aware of.

No physical locations: If you value in-person banking or speaking directly with someone in customer service, Vio may not be the ideal choice as it lacks physical branch locations.

No checks or debit card: Vio's money market accounts do not provide the option for account holders to have a linked debit card or write checks. In contrast, numerous other money market accounts do offer check-writing capabilities, making this a potential disadvantage for Vio.

High outgoing wire transfer fees: There is no fee for incoming domestic wire transfers, but there is a high fee for outgoing domestic wire transfers -- $30.

How to access your money

Vio provides multiple ways to access funds in its money market account, allowing you to make deposits and withdrawals with ease. Account holders get six free withdrawals every month.

Deposit options

If you want to fund your Vio Bank Cornerstone Money Market Savings account, here are the different options to do so:

  • ACH
  • Personal check by mail
  • Personal check by mobile deposit
  • Wire transfer

The Vio Bank Cornerstone Money Market Savings account doesn't charge a fee for incoming wire transfers.

Withdrawal options

If you want to withdraw money from your Vio Bank Cornerstone Money Market Savings account, these are the options you have:

  • ACH
  • Wire transfer
  • Check

Vio charges a $30 fee for outgoing domestic wire transfer.

The Vio Bank Cornerstone Money Market Savings account is right for you if:

If you're comfortable with online-based banks and prefer the convenience of managing your finances from home, the Vio Bank Cornerstone Money Market Savings account may be right for you. With a high APY and a low minimum balance required to open, it's an ideal choice for savers who want to get the most for their money. Plus, you won't have to worry about monthly fees eating into your savings.

However, the account doesn't come with a debit card or the ability to write checks, and Vio Bank has no physical locations. So if these features are important to you, then you will need to find another financial institution.

Keep reading about Vio Bank

Our money market account methodology

At Motley Fool Money, we evaluate money market accounts based on four main criteria: annual percentage yield (APY), brand and reputation, fees and minimum balance requirements, and perks.

Our scores are weighted as:

  • APY: 40%
  • Brand and Reputation: 20%
  • Fees and Minimums: 10%
  • Perks: 30%

Learn more about how Motley Fool Money rates bank accounts.