Follow the steps to complete the NY DTF CT-399 online.

1. Use the ‘Get Form’ button to access the NY DTF CT-399 form and open it in your preferred editor.
2. Begin with Part 1, where you will compute New York State depreciation modifications for your entire net income. List each depreciable property requiring adjustment and fill out the necessary columns from A to I.
3. In Section A, provide a description of each asset, noting the date placed in service, cost or other basis, and the depreciation methods used. Ensure to calculate accumulated depreciation and allowable depreciation based on the instructions provided.
4. Proceed to Section B, where you list property qualified for federal special depreciation. Again, identify each item with the same required information as in Section A.
5. Complete Parts 2 and 3 if applicable. These sections require you to provide adjustments based on property disposition, comparing federal and state depreciation deductions.
6. After all sections are filled, review your entries for accuracy. Ensure all relevant information is included and calculations are correct.
7. Once verified, you can save your changes, download the completed form, or print it for submission. Make sure to follow any additional submission instructions relevant to the form.

Start completing your NY DTF CT-399 form online today!