Tax Center Forms & Resources

Keeping You in Check With Uncle Sam

The following forms and resources are provided as a benefit to our clients. They are kept up-to-date as possible, but please notify us if you feel something is dated or in error. If you have questions regarding the use of any forms, please contact an EWH Accountant or Accounting Assistant.

NOTE: Auto-fill forms must be completed in Adobe Acrobat on a computer or device. Please open the PDF questionnaire first, then use the Download button at the upper right to save the form on your device. Then fill out the form and save when complete. This ensures all your personal information remains secure on your device.

Record Retention Guidelines

Individual and Business

Income Tax

Tax Updates – 2023
Instructions for 2022 Tax Questionnaire
2022 Tax Questionnaire 
Wisconsin DOR Rent Certificate

Securely Upload Your Tax Information – Click HERE

WDOR Announces Identity Protection PIN

The Wisconsin Department of Revenue is pleased to announce a new way for individuals to protect their Wisconsin tax accounts. The Wisconsin Identity Protection PIN hinders fraudsters from using an individual’s personal information to file a return and receive a Wisconsin tax refund.

Individuals must register for My Tax Account to receive the Wisconsin Identity Protection PIN:

After registration is complete and a PIN is received, you:

  • will have comfort in knowing your Wisconsin tax accounts are secure and no one else can file a tax return with your information
  • can quickly and easily renew your PIN each year

You must provide this PIN # to your tax practitioner. It will be required to electronically file your tax return.

Tracking My Tax Refund


Income Tax Due Dates

Individual Income Tax

Federal income tax deposits/estimates are due on April 15, June 15, September 15 and January 15
State income tax deposits/estimates are due on the 15th of April, June, September and December

Corporate Income Tax

Tax deposits are due on the 15th day of the 4th, 6th, 9th and 12th month of the fiscal year

Have a unique financial, accounting, or bookkeeping need?
Contact us today at one of our four locations in Waukesha, Madison, Onalaska, or West Bend - we can help!