Wisconsin Income Taxes and WI State Tax Forms

efile Wisconsin tax return
Wisconsin
"The Badger State"

Wisconsin State Income Tax Return forms for Tax Year 2018 (Jan. 1 - Dec. 31, 2018) can be e-Filed together with an IRS Income Tax Return until October 15, 2019. In January 2020, you can e-File Tax Year 2019.

eFile.com makes it easy for you to e-file your IRS and Wisconsin State Tax Return (e.g resident, nonresident, or part-year resident returns). However, the IRS and the respective State Tax Agencies require you to e-file a Federal Income Tax Return at the same time you e-file a State Tax Return. This is not an eFile.com policy but an IRS and State Agency policy. Therefore, you cannot e-File a Wisconsin Tax Return anywhere - not just eFile.com - without also e-filing the associated IRS Tax Return. However, please read on for good news. 

Find detailed instructions on how you can only prepare and mail in - not eFile - a Wisconsin 2018 Tax Return - here via eFile.com. However, you must download/print and sign the forms and mail them to the Tax Agency.

Function
Description
Prepare only a WI State Return
with a State Only Code: FreeFed19
Where Is Your Wisconsin Tax Refund Money?
Step 1: Sign into your eFile.com account and check acceptance by the Tax Agency.
Step 2: Check your Wisconsin Tax Refund Status.
Where is Your IRS Refund?
Step 1: Sign into your eFile.com account and check acceptance by the IRS.
Step 2: Check your IRS Tax Refund Status.
Wisconsin Income Tax Extension
Wisconsin Income Tax Amendment
How to correct a rejected Tax Return
If your WI Tax Return was rejected by the WI Tax Agency - not eFile.com - instructions on how to correct a rejected Wisconsin Tax Return.
Wisconsin IRS Late Filing, Tax Payment Penalties

1. Late Filing Penalty:  There is a $50 late filing fee when you file your Wisconsin tax return after the tax return deadline. You may also face a 5% negligence penalty for each month you fail to file your return on time (based on your total taxes owed). The maximum is 25%.

2. Late Payment Penalty: There is a 6 1/2% or $35 (whichever is greater) delinquent tax collection fee that is added to your total taxes owed when you submit your payment after the tax return date.

3. IRS Penalties: Calculate and Estimate your potential IRS Income Tax Return Penalties.

 

Start Federal and Wisconsin Tax Returns

2019 Wisconsin Income Tax Filing Deadlines by Tax Year

The majority of deadlines listed here are for Tax Year 2018. Some apply to upcoming Tax Years and some are IRS or Federal deadlines.

Deadline
Type
Description
April 15, 2019
Tax Year 2018
Income Tax Return
Prepare and e-File an IRS (Due Date April 15, 2019) a Wisconsin State Income Tax Return (Due Date April 15, 2019) until October 15, 2019. - eFileIT*
Expired:
April 15, 2019
2018 Income Tax Extension
October 15, 2019
Tax Year 2018
Income Tax Return after the April 15, 2019 Wisconsin Tax Extension
Last day to e-File a 2018 Wisconsin State Income Tax Return for Tax Extension Filers and late eFilers. You can only e-File (to file by paper see below) Wisconsin Income Tax Return together with an IRS Tax Return. eFileIT*
October 15, 2019 via mail-in Forms.
Forms incl. Mailing Address are listed below.
Tax Year 2018
Income Tax Return after the April 15, 2019 Wisconsin Tax Extension
Deadline for taxpayers who got a WI Tax Extension to file their WI Income Tax Return by mail-in Forms - the Forms incl. mailing addresses are listed below - is October 15, 2019. (Optionally, the eFileIT* deadline is Oct. 15, 2019). Instructions on how to only - without the IRS return - prepare and file a Wisconsin State Income Tax Return on eFile.com.
Tax Amendment for all Tax Years
IRS Due Dates
IRS Tax Return, Extension, Amendment Deadlines
2019, 2020, etc.
Other State Tax Return, Extension, Amendment Deadlines
Select respective State Tax Return Deadlines.
2019, 2020, etc.
IRS Federal Income Tax Return, Amendment, Extension Deadlines
April 15, 2022
2018 Wisconsin Income Tax Return Refund.
IRS Tax Return Refund Claim Deadline
The last day to file - you will not face late filing penalties - and claim your 2018 Wisconsin Income Tax Return Refund. This deadline does not apply if you owe 2018 Income Taxes.

E-File These 2018 Wisconsin State Tax Forms

Prepare and efile these state forms for 2018 in conjunction with your federal and state income tax return. As you proceed through the tax interview on efile.com, the application will select the correct state forms for you. You can also select tax forms individually. All these forms will then be e-filed by you to the state tax agency. Instructions on how to only prepare a state income tax return.

Form/Schedule
Description
efileIT Now*
Form 1
Income Tax Return
Form 1NPR
Nonresident and Part-Year Resident Income Tax Return
Schedule CS
College Savings Accounts (Edvest and Tomorrow's Scholar)
Schedule EC
Enterprise Zone Jobs Credit
Schedule H
Homestead Credit Claim
Schedule OS
Credit for Net Tax Paid to Another State
Schedule PS
Private School Tuition
Schedule U
Underpayment of Estimated Tax
Schedule WD
Capital Gains and Losses
Estimated Payment Voucher Form. Complete and submit to the WI Department of Revenue - address is on the form - with your payment.
Cannot be e-Filed. Mail-in only.
Estimated Payment Voucher Form. Complete and submit to the WI Department of Revenue - address is on the form - with your payment.
Cannot be e-Filed. Mail-in only.
Determines your paycheck WI Tax Withholding amount per employer.
Step 1: Complete and submit to your employer(s).
Step 2: Estimate, Calculate your IRS Tax Withholding now.
Not filed with the State. Submit to Employer only.

* Due to IRS and State Tax Agency tax data sharing and validation requirements, you can only e-file a State Income Tax Return while also e-filing a Federal Income Tax Return. This is not an eFile.com created policy, but all online tax web sites have to adhere to this IRS/state issued tax data sharing policy. You can however prepare all 44 State Income Tax Returns on eFile.com if you have already e-Filed or filed your IRS return. Instructions on how you can ONLY prepare and file State Income Tax Return(s). Only on eFile.com can you prepare, file or e-file unlimited State Tax Returns for one low price and not pay for each State return like you would do on H&R Block® vs. TurboTax®. Dare to Compare Now.

How To Claim a Wisconsin Tax Extension

For Tax Year 2018 you can e-File an IRS Tax Extension by April 15, 2019 for free on eFile.com (instructions on whether you should consider a Tax Extension or not). 

If you have an extension for filing your federal return, this automatically gives you a Wisconsin extension. Make sure you attach a copy of your federal extension to your Wisconsin income tax return. If you only want to obtain an extension for your WI state return, you must attach a statement to the state return indicating that you wish to use Federal Form 4868.

Instructions on how to eFile an IRS tax extension for free on eFile.com by April 15, 2019.

The extended IRS/Wisconsin eFile deadline is Oct. 15, 2019 - eFileIT* now. If you plan to file or mail-in a Wisconsin tax return on paper - the Forms and Mailing Address are below - your due date is Oct. 15, 2019. 

Even though you may have an extension of time to file your return, you will owe interest on any tax not paid by April 15, 2019. Therefore, when you file an extension, pay as much of your WI tax bill as you can. If you expect to pay additional taxes owed, you can avoid the 1% per month interest charge during the extension period by paying the tax you will owe by April 15, 2019. You can submit the payment with a 2018 Form 1-ES, Estimated Income Tax Voucher.

2018 Tax Year Wisconsin Tax Forms

Wisconsin State Income Tax Forms for Tax Year 2018 (Jan. 1 - Dec. 31, 2018) can be e-Filed in conjunction with a IRS Income Tax Return until October 15, 2019. Details on how to only prepare and print a Wisconsin 2018 Tax Return.  The WI Tax Forms and Mailing Address are below - click for the IRS Federal Income Tax Forms for Tax Year 2018.

Form/Schedule
Description
Income Tax Return
Estimated Income Tax Voucher
Wisconsin Electronic Payment Voucher
Nonresident and Part-Year Resident Income Tax Return
Claim for Decedent's Wisconsin Income Tax Refund
College Savings Accounts (Edvest and Tomorrow's Scholar)
Enterprise Zone Jobs Credit
Farmland Preservation Credit
Homestead Credit Claim
Adjustments to Itemized Deductions
Alternative Minimum Tax
Credit for Net Tax Paid to Another State
Private School Tuition
Underpayment of Estimated Tax by Individuals and Fiduciaries
Capital Gains and Losses
Disability Income Exclusion

2017 Tax Year Wisconsin Tax Forms

Wisconsin state income tax forms for Tax Year 2018 (Jan. 1 - Dec. 31, 2017)  can no longer be prepared and e-filed. Complete the respective Form(s) below, sign, and mail them to the Wisconsin Department of Revenue. In addition to filing Wisconsin Forms you might also have to file the 2017 IRS Tax Return Forms.

Form/Schedule
Description
Income Tax Return
Income Tax Return (Short Form)
Estimated Income Tax Voucher
Wisconsin Electronic Payment Voucher
Nonresident and Part-Year Resident Income Tax Return
Claim for Decedent's Wisconsin Income Tax Refund
College Savings Accounts (Edvest and Tomorrow's Scholar)
Enterprise Zone Jobs Credit
Farmland Preservation Credit
Homestead Credit Claim
Adjustments to Itemized Deductions
Alternative Minimum Tax
Credit for Net Tax Paid to Another State
Private School Tuition
Underpayment of Estimated Tax by Individuals and Fiduciaries
Capital Gains and Losses
Disability Income Exclusion

Wisconsin Tax Facts, Information

Wisconsin Tax Information and Contacts

WI Tax Type
Description
Wisconsin has a state sales tax rate of 5%. There is an additional sales tax of 0.5% in 62 counties. Motor vehicle, boat, recreational vehicle, and aircraft sales are subject to the county use tax of 0.5 percent rather than county sales tax based on the county in which the item is customarily kept.
Wisconsin Tax Fact
Take and bake pizzas are subject to Wisconsin sales tax because the state considers them prepared food.
Wisconsin Tax Payment Options
Wisconsin State Tax Agency Contacts
For Mailing Addresses and other contact information contact the WI Department of Revenue