BOK Financial
FDIC

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Business High Yield Investor Fund

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Earn 3.50% APY1 on balances of $10,000 or more

Put your excess operating cash to work with a high-yield account built for businesses that want strong returns without sacrificing access. Grow your balance. Protect your liquidity. Run your business with confidence.

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Arizona

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Boost earnings without losing flexibility

The Business High Yield Investor Fund is a Business Money Market Account that combines the earning power of a high‑yield account with the everyday accessibility your business needs. Perfect for managing reserves, smoothing seasonal revenue cycles or maximizing returns on idle cash.

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Key benefits for business owners

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Stronger earnings on higher balances

Tiered interest rewards you automatically as your balance grows, helping your business earn more on the funds you're already holding.
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Save time with automated transfers

Set up free automatic transfers to simplify cash flow management and keep your balances right where you want them.
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Manager your money anytime, anywhere

Free Online & Mobile Access means you can track balances, transfer funds and review activity whenever you need to.
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Clear, convenient reporting

Free monthly statements with check images make accounting, reconciliation and audits faster and easier.
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Maintain the freedom to make payments

With check access, you stay liquid. Ideal for vendor payments, project expenses or unexpected opportunities.
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Added protection when you need it

Enroll in free Overdraft Protection2 that automatically transfers available funds from your linked BOK Financial business savings or line of credit to keep your finances running smoothly.
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Free ATM access

Keep your operations moving forward by using BOK Financial ATMs to deposit checks, transfer funds, check your balances and more. Plus get access to more than 32,000 additional no-fee ATMs nationwide.

Additional information / account details

  • Minimum opening deposit: $100
  • Monthly service fee: $10
  • How to waive the monthly service fee: Maintain a minimum daily balance of $1,0002

Ready to get started?

Safely and securely open an account by getting started online or by scheduling an appointment.
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1 The Annual Percentage Yield (APY) is effective as of 03/24/2026 and applies to Business High Yield Investor Fund accounts. Tiered Annual Percentage Yield (APY) is calculated on the daily collected balance.

2 To earn the advertised APY, a minimum daily collected balance of $10,000 or more is required. See the table below for the APY of each balance tier. The advertised interest rate may change at any time, including after the account is opened, without notice. Fees could reduce earnings. Other restrictions may apply. The minimum deposit to open a Business High Yield Investor Fund account is $100. A monthly service fee of $10.00 will be assessed if the daily collected balance falls below $1,000 on any day during the statement cycle. The promotional rate applies only to businesses with annual revenues of $10,000,000 or less.

 Account Balance Requirement   Annual Percentage Yield 
 $1,0000 - $9,999.99 0.10%
 $10,000+ 3.50%