Indiana Amended Individual Income Tax Return Form IT-40X State Form 44405 (R13 / 9-14) If you are not filing for the calendar year January 1 through December 31, enter period from: Tax Year to: Your Social Security Number Spouse s Social - 2026

1. Click ‘Get Form’ to open it in the editor.
2. Begin by entering your tax year and Social Security numbers for both you and your spouse, if applicable. Ensure accuracy as this information is crucial for processing.
3. Fill in your name and address details. If filing jointly, include your spouse's information as well.
4. Indicate if you are married filing separately or if the amendment is due to a Net Operating Loss (NOL) by placing an 'X' in the appropriate boxes.
5. Complete Part 1 on the back of the form to explain any changes made from your original return. Be detailed and attach supporting documents like W-2s or federal returns.
6. Follow through each line item carefully, entering amounts from your original return, any changes, and corrected totals as specified in the instructions.
7. Review all entries for accuracy before submitting. Use our platform’s features to save and share your completed form easily.

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