Laws dot-com legal forms guide form one. Individual income tax return. Wisconsin residents use a form one to file their state income tax if they cannot use the short form one. Reasons for this include income which cannot be documented on a form one, such as that derived from a farm or business, or adjustments such as alimony payments and tuition expenses. Both documents, as well as an instruction booklet for both, are found on the website of the Wisconsin Department of Revenue. Step 1: If you are filing on a fiscal year basis, give your starting and ending dates. Step 2: Enter your social security number, as well as that of your spouse if filing jointly. Provide your name and that of your spouse if filing jointly. Provide your complete home address. Step 3: Enter the name of the city, village, or district where you live, as well as its county name and School District code number. Step 4: Indicate your filing status with a check mark where indicated. If you are married and filing separately, add your spouse's name here rather than above. Step 5: Wisconsin residents who earn income in Minnesota should note this on the line indicated and enter the amount of the income in question. Step 6: Lines 1 through 5 provide instructions for detailing your total income. Step 7: Lines 6 through 13 provide instructions for calculating your adjusted Wisconsin income after deductions are applied. Step 8: Lines 14 through 40 on the second page provide further instructions for adjusting your income. Note that if you are claiming an itemized deduction on line 20, you must first complete schedule 1 on page 4. Married couples in which both spouses work must complete schedule 2 to claim the appropriate credit on line 30. Step 9: Lines 41 through 55 on the third page provide...