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Routing # 301079183

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Tailored to S Corp or C Corp members

Discover Business Optimum Checking Account

At Mainstreet Credit Union, we'll help you easily address your company's more complex banking needs.

The checking account that supports corporations in Kansas and Missouri.
Dividend-earning account
Includes 200 deposited items per month
Set up multiple users in digital banking
Increased cash handling and discounted services
We keep everything transparent.

Take a look at our Business Services Schedule of Fees so you know all the details.

Business Optimum Checking scales to meet your needs.

As one of the larger companies in the Kansas City, MO/KS area, you need a checking account that always rises to the occasion when business demands it. With Business Optimum Checking from Mainstreet, you get multiple tools and resources to make money management easier.

  • Maintain a minimum average daily balance of $25,000 to avoid a $25 monthly fee

  • Business online banking, your first debit card, and paper statements are included at no charge

Please note, we do not open accounts for Money Service Businesses.*

Here's what you need to open your Business Optimum Checking Account.

  • Name and ID of all shareholders with 25% or greater ownership

  • Good standing from the state

  • Articles of Incorporation

  • By-Laws or Operating Agreement

  • Tax ID Number

Mainstreet Credit Union offers several business checking accounts to help local businesses in Kansas City, MO and Kansas easily access and manage their funds.

Find your next business checking account at Mainstreet Credit Union.

You really are part of a member and treated with personal and professionalism.

Steven S

Business advantage checking
Checking that works for your bottom line.

Earn competitive dividends while managing your business funds your way.

Make the switch. Make progress.

At Mainstreet, membership helps you move forward—your way.

Take advantage of exclusive member offers

View our current specials.

Read real experiences from fellow members

Fuel the growth of your community

View our community impact.

Quick Budget Tip

Try the 50/30/20 split. Spend 50% on needs, 30% on wants, and 20% on savings.

*A Money Service Business offers currency dealer or exchange services, check cashing services, transports money or is the issuer of traveler's checks, money orders or stored value.

Thank you for your interest, if you have any questions contact us at 888.395.1010 or [email protected]