Why Stress Over Wisconsin? eFile Wisconsin Business Returns Quickly

X.TAX ensures accurate filing for all WI business forms while helping you save more.

File WI Business Tax Forms Without the Hassle

Get clarity on Wisconsin business taxes.

Wisconsin offers a competitive 7.9% corporate income tax rate. The state provides various tax credits and incentives, such as the Manufacturing and Agriculture Credit and the Research Expense Credit. This supportive landscape fosters economic growth and innovation, making Wisconsin an attractive hub for diverse businesses.

All WI Business Tax Forms in One Place

Corporations, partnerships, LLCs, estates, and trusts—X.TAX has it all.

Corporations 

Partnerships

For LLCs and Sole Proprietors

For Estates and Trusts

File Wisconsin Business Taxes in Just 4 Steps

Accurate, efficient, and stress-free WI Biz filing with X.TAX.

Create an Account

Set up your profile securely.

Upload Your Information

Enter your income, expenses, and tax forms. 

Review for Errors

Use smart tools to verify accuracy. 

Submit to the State

File with one click and track your submission. 

Key WI Business Tax Deadlines

Never miss your WI Biz Tax filing date with X.TAX reminders
Business Type Forms Due Date
Corporations Form 1120 April 15, 2025
Form 1120S March 15, 2025
Form 5 April 15, 2025
Partnerships Form 1065 March 15, 2025
Form 3 March 15, 2025
Form 1CNP April 15, 2025
LLCs and Sole Proprietors Form 1 April 15, 2025
Form Corp-ES Quarterly payments due on April 15, June 15, September 15, and January 15
Form PW-1 April 15, 2025
Estates and Trusts All necessary forms for Wisconsin estate and trust filings are typically April 15, 2025

Take Advantage of WI Tax Exemptions

Claim every Wisconsin tax benefit with X.TAX.
Eligible California businesses can benefit from these exemptions:

Sales and Use Tax Exemptions

Corporate Income Tax Exemptions

Property Tax Exemptions

Economic Development Incentives

Research and Development Tax Credits

X.TAX- Your Wisconsin Tax Filing Solution

Filing your WI business taxes has never been easier.

Audit Protect

RiskScore

AItomatic Filings

QuickBooks Integration

Why WI Businesses Rely on X.TAX

Trusted by companies across Wisconsin for efficient tax filing.

Wisconsin Business Tax FAQs

Get clear answers to your WI tax questions.
X.TAX is tailored for Wisconsin businesses, offering reliable, secure, and accurate filing tools.
We provide all essential forms for corporations, partnerships, LLCs, and estates. Check the full list above or visit our website.
Corporate filings are due April 15, and partnership filings are due March 15. Quarterly forms have specific deadlines listed above.
Wisconsin businesses benefit from sales tax exemptions, property tax relief, and incentives for job creation and R&D activities.
X.TAX is the best e-filing software for California businesses because it offers accurate filing, tax-saving tools, QuickBooks integration, and expert CPA assistance.
Our platform uses advanced tools to review filings and ensure they meet Wisconsin tax laws.
Yes, X.TAX prioritizes your data security with robust encryption for all submissions.