Wisconsin

2024 Wisconsin State Tax Deadlines

If you are a resident or have been involved in significant business operations within Wisconsin, then you might be required to file Wisconsin State Taxes. We look at the most important tax deadlines and tax extensions for Wisconsin in 2024.

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Wisconsin Business Tax Deadlines for 2024

C Corporation
Wisconsin C Corporation Tax Deadlines for 2024
You must file & pay Corporate Income Taxes in Wisconsin by April 15, 2025.

File Online with Wisconsin Department of Revenue.
File by Mail must be postmarked by the due date.

Applicable form:

Form 4 – Wisconsin Corporation Franchise or Income Tax Return.

Extension to File Taxes in Wisconsin for 2024

You must send payment for taxes in Wisconsin for the fiscal year 2024 by April 15, 2025.

The Extension Deadline is November 15, 2025, to file your Wisconsin corporate income tax return.

Wisconsin automatically grants 7 months extensions on filing corporate income tax returns. This means you do not need to file for an extension in Wisconsin.

This is an extension to FILE, not an extension to PAY – payment is still due April 15, 2025.

Pass-Throughs

Wisconsin S Corporation & Partnership Tax Deadlines for 2024

You must file in Wisconsin by March 15, 2025.

File Online with Wisconsin Department of Revenue.
File by Mail must be postmarked by the due date.

Applicable Forms:

Form 5S – S-Corporation Return
Form 3 – Partnership Return

Extension to File S Corporation & Partnership Taxes in Wisconsin for 2024
You must send a payment for taxes in Wisconsin for the fiscal year 2024 by March 15, 2025.

The Extension Deadline is October 15, 2024 to file your Wisconsin S-Corporation income tax return and September 15.2023 to file your Wisconsin Partnership income tax return.

Wisconsin automatically grants 7 months extensions on filing S Corporation income tax returns, and 6 months extensions on filing Partnership income tax returns. This means you do not need to file for an extension in Wisconsin.

This is an extension to FILE, not an extension to PAY – payment is still due March 15, 2025.

Extension to File Taxes in Wisconsin for 2024

You must send payment for taxes in Wisconsin for the fiscal year 2024 by April 15, 2025.

The Extension Deadline is October 15, 2025, to file your Wisconsin Individual Income tax return.

Wisconsin will automatically grant a 6 months extension on filing personal income taxes if a federal extension is filed. Wisconsin does not have its own separate extension application, so you will have to file a federal extension and attach the federal extension to the state return to receive the extension.

This is an extension to FILE, not an extension to PAY – payment is still due April 15, 2025.

Wisconsin Individual Tax Deadlines for 2024

Estimated Tax Deadline for Wisconsin 2024
Estimated tax payments are made:

April 15, 2024
June 15, 2024
September 15, 2024
January 15, 2025

See Form 1ES Instructions for the amount to pay with each voucher.

Individual Tax Deadline for Wisconsin 2024

You must file & pay Individual Income Taxes in Wisconsin by April 15, 2025.

File Online with Wisconsin Department of Revenue
File by Mail must be postmarked by the due date

Applicable forms:

Form 1 – Residents
Form 1NPR – Nonresidents or Part-Year Residents

Estates Tax Deadline for Wisconsin 2024

Wisconsin does not have an Estate Tax.

Farmer and Fisherman Taxes for Wisconsin 2024

If at least 2/3 of your gross income for the taxable year is derived from farming, you may pay estimated tax at any time on or before January 15, 2025. If you wait until January 15, 2025, you must pay the entire balance of the estimated tax. However, if farmers file their tax return on or before March 1, 2025, and pay the total tax at that time, they need not file estimated tax.

Sources

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The material discussed on this page is meant for general illustration and/or informational purposes only and is not to be construed as investment, tax, or legal advice. You must exercise your own independent professional judgment, recognizing that advice should not be based on unreasonable factual or legal assumptions or unreasonably rely upon representations of the client or others. Further, any advice you provide in connection with tax return preparation must comply in full with the requirements of IRS Circular 230.

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2023 Wisconsin State Tax Deadlines

2022 Wisconsin State Tax Deadlines

Tax strategies to save every dollar you deserve

Instead helps you find every eligible tax strategy, from basic credits and deductions to complex scenarios, ensuring you maximize your savings.

Start today

Sell your home

Transform your home sale into a tax-saving opportunity.

QEAP

Skill up your team, scale down your business expenses.

Work opportunity tax credit

Unlock tax savings for empowering your community through hiring.

Oil & gas deduction

Drill into tax savings. Maximize deductions for both tangible and intangible drilling costs.

Hiring kids

Reduce taxable income & self-employment tax by hiring your kids.

Home office

Deduct qualified expenses for using your home for business purposes.

Meal expenses

Business can typically deduct 50% of meals associated with doing business with some cases allowing up to 100% deduction.

Travel expenses

Businesses can deduct necessary travel expenses, like airfare and lodging, directly related to operations for tax savings.

Vehicle expenses

Vehicle tax deduction allows deduction of business vehicle expenses, using a per-mile rate or actual costs, from taxable income.

Late S election

A Late S Election lets a corporation request IRS S corp status post-deadline.

Late C election

A Late C Election is a request to the IRS for C corporation status after the deadline.

Depreciation

Business can typically deduct 50% of meals associated with doing business with some cases allowing up to 100% deduction.

R&D tax credit

Fuel your venture's growth and innovation with the R&D tax credit. Not just for tech firms or big corporations.

Clean vehicle

Businesses and Individuals can receive a tax credit for purchasing new eco-friendly vehicles. Individuals may also qualify on used eco-friendly vehicles.

Residential clean energy

Taxpayers who invest in renewable energy improvements for their home or second home may qualify for a credit to lower their income tax.

Augusta rule

The Augusta Rule lets homeowners rent their property tax-free for up to 14 days a year without reporting the income.

Roth 401k

Roth 401(k) lets employees and individuals make after-tax retirement contributions, offering tax-free growth and withdrawals.

Traditional 401k

Traditional 401(k) plans offer pre-tax retirement savings for employees, with companies reducing taxable income via contributions.