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Wisconsin . Contact directory

How to reach the Wisconsin Secretary of State.

Direct phone number, hours, mailing and physical addresses, and the right phone for the right question. Plus the related Wisconsin departments most business owners need.

Primary phone
608-261-7577
Mon-Fri 8am-4:30pm CT
Mailing address
P.O. Box 7846, Madison, WI 53707-7846
Physical address
4822 Madison Yards Way, North Tower, Madison, WI 53705
Fax
608-267-6813

The right phone for the right question

Franchise tax and corporate income tax
608-266-2772 (WI Department of Revenue, Corporate Tax)
Expedited filings
Expedite +$25 for 1-day
608-261-7577 (expedite available)

Most calls to the Wisconsin SoS are about things File.Business can answer instantly

"What is my entity's status?"
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"When is my AR due?"
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"How do I change RA?"
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"Can I reinstate?"
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FAQ

Frequently asked questions

What is the phone number for the Wisconsin Secretary of State?
The primary phone for the Wisconsin Department of Financial Institutions (DFI), Division of Corporate + Consumer Services is 608-261-7577. Office hours are Mon-Fri 8am-4:30pm CT.
What are the Wisconsin Secretary of State office hours?
Office hours are Mon-Fri 8am-4:30pm CT. Online filings can be submitted 24/7.
What is the Wisconsin Secretary of State mailing address?
Mailing address: P.O. Box 7846, Madison, WI 53707-7846. Physical office: 4822 Madison Yards Way, North Tower, Madison, WI 53705.
How do I speak to a person at the Wisconsin Secretary of State?
Call 608-261-7577 during business hours.
Does the Wisconsin Secretary of State offer expedited service?
Expedite +$25 for 1-day.
Can I email the Wisconsin Secretary of State?
Email contact varies by department.
Can I visit the Wisconsin Secretary of State office in person?
Yes, the physical office is at 4822 Madison Yards Way, North Tower, Madison, WI 53705.

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Disclosure. File.Business is a private business filing and compliance service. We are not a government agency and are not affiliated with the Wisconsin Department of Financial Institutions (DFI), Division of Corporate + Consumer Services or any Secretary of State office. You may file directly with the Wisconsin Department of Financial Institutions (DFI), Division of Corporate + Consumer Services. Information on this page is for general guidance only and is not legal, tax, or accounting advice. Fees and deadlines verified against the Wisconsin Department of Financial Institutions (DFI), Division of Corporate + Consumer Services as of June 2026 and may change. For entity-specific guidance, consult a licensed Wisconsin attorney or CPA.

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File.Business is a private business filing and compliance service. We are not a government agency and are not affiliated with any Secretary of State office. You may file directly with the appropriate state agency. SOC 2 Type II audited. 220,000+ businesses formed since 2017.