Contact Us

You can contact us for your banking needs in the way most convenient for you.

Important news regarding email communications:

Because the security of your private information is important to us, Guaranty Bank has implemented a secure email policy for our outgoing emails.

If our response to your emailed question contains private information, such as balance or account number, you will receive a ZixMail Secure email message. This secure email message will contain a link to view the message containing our response to you. To access the message, follow the three easy steps below:

Click on the link provided in the notification email
Create a password
Click “Submit”

To learn more about ZixMail, ZixMessage Center and other ZixCorp offerings, please click here.

Incoming emails (emails you send us) are not secure. To protect your information, please do not include confidential information such as account numbers, Social Security numbers or passwords when contacting us via email.

Frequently Asked Questions

If you can't find what you're looking for here or have any general questions, check out our Frequently Asked Questions page!

Personal Banking

	Customer Service Center:	414-362-4636 or toll-free 1-800-235-4636 (8am-7pm CST Mon-Fri, 9am-3pm CST Sat)
	Email	Click here to email us
	Frequently Asked Questions	Answers to our most frequently asked questions
	INFO Line	1-800-235-4636 for 24-hour access to your account information
	Verification of Deposit fax line	414-290-6433
	Report a lost or stolen Check Card	1-800-554-8969
	Deposit Disclosures	Wisconsin Deposit Disclosure Illinois Deposit Disclosure Minnesota Deposit Disclosure
	Account Disclosures	Wisconsin Account Disclosure Illinois Account Disclosure Minnesota Account Disclosure
	Overdraft and Overdraft Fee Information	Courtesy Overdraft Services Disclosure

Business Banking

	Customer Service	414-362-4636 or toll-free 1-800-235-4636 (8am-7pm CST Mon-Fri, 9am-3pm CST Sat)
	Email	Click here to email us
	INFO Line	1-800-235-4636 for 24-hour access to your account information

Credit Cards


	Elan	Click here to email us

Bank Routing/Transit Numbers

The following routing numbers are to be used for establishing Direct Deposit and ACH payments only.

	Illinois	071974408
	Minnesota	091071598
	Wisconsin	275071288

Career Opportunities

Online Job Board

Check out our current career opportunities

General Inquiries

Phone

Mailing Address

414-362-4000
(8:30am-5pm CST Mon-Fri)

4000 West Brown Deer Road
Brown Deer, WI 53209

Have any questions?

	Call Us 1-800-235-INFO (4636)
	Find Us
	Email Us

Lost or Stolen
ATM/Debit Card Notification
1-800-554-8969