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An Overview of Wisconsin State Business Income Tax Extension Forms

- Updated Feb 27, 2021 - 8.00 AM by Admin, ExpressExtension

Table of content

1. Does Wisconsin support tax extension for business income tax returns?

2. What Form does the state require to file an extension?

3. Deadline to file an extension with the Wisconsin State

4. Paying balance due along with Extension

5. Where to mail payment Form 4-ES?

Does Wisconsin support tax extension for business income tax returns?

Q

Yes. The state of Wisconsin provides the automatic extension of time to file business income tax returns with the state, if the businesses have filed the federal extension Form 7004 and it is approved by the IRS.

Note: make sure to attach a copy of your approved Federal business tax extension to your Wisconsin tax return when it’s filed.

What Form does the state of Wisconsin require to apply for an extension?

Q

There is no state-specific form to request an extension, as the state of Wisconsin automatically provides the extension for up to 7 months for businesses to file an income tax return with the state.

When is the deadline to file a business tax return with Wisconsin?

Q
LLC and Partnership

Businesses in Wisconsin (operating as General Partnership) have to file their Form 3 by the 15th day of the 3rd month following the end of the accounting period.

Businesses in Wisconsin (operating as SLLC, LLC classified as a partnership) have to file their Form 3 by the 15th day of the 3rd month following the end of the accounting period.

Businesses in Wisconsin (operating as SLLC, LLC classified as a Partnership, single-member LLC owned by a pass-through entity) have to file their Form 3 by the 15th day of the 3rd month following the end of the accounting period.

Businesses in Wisconsin (operating as single-member LLC owned by an individual) have to file their Form 3 by the 15th day of the 4th month following the end of the accounting period.

Corporation

Businesses in Wisconsin (operating as S Corporation & C Corporation) have to file their Form 5S by the 15th day of the 3rd month following the end of the taxable year.

How do I pay my balance due to the state of Wisconsin with my extension?

Q

You can choose to pay your balance due along with your return by using any one of the following options:

Where to mail payment Form 4-ES?

Q

Mail Form to the following address:

Wisconsin Department of Revenue,
P.O. Box 930208,
Milwaukee, WI 53293-0208.