Follow the steps to fill out the IL DoR IL–1040 Schedule NR online.

1. Click ‘Get Form’ button to obtain the form and open it in the editor.
2. Begin by providing your personal information. Enter your name as it appears on your Form IL-1040 and your Social Security number. Proceed to answer Question 1 regarding your residency status in Illinois during the tax year.
3. If you answered 'No' to Question 1, indicate your residency dates in Illinois by completing parts a and b for yourself and your spouse, if applicable. Fill in the state you lived in during the tax year and the corresponding dates.
4. Answer Question 3 by checking the appropriate box if you were a resident of any states listed (Iowa, Kentucky, Michigan, Wisconsin) or if you accompanied a military spouse.
5. For Question 4, if you earned income in any other state, provide the abbreviations for those states that apply.
6. Continue filling out your Form IL-1040 by completing Lines 1 through 10 as if you were a full-year resident. Follow the specific instructions for your residency in the rest of this schedule.
7. In Step 3, input the amounts from your federal return to compute the Illinois portion of your federal adjusted gross income. Make sure to fill in both Column A (federal total) and Column B (Illinois portion) accurately for each income line.
8. Complete Step 3 on Page 2 by entering your Illinois total income and any adjustments. Ensure to carefully read the instructions provided for these sections.
9. Finally, calculate your Illinois income and tax in the last step. Use the appropriate formulas provided to derive your net income and tax liability. Ensure you have filled out all necessary lines before saving your changes, downloading, printing, or sharing the form.

Complete your documentation online for a smooth filing experience.