Follow the steps to complete the NY IT-203-S-ATT accurately.

1. Click ‘Get Form’ button to access the document and open it in your preferred online editing tool.
2. Begin with the legal name of the S corporation at the top of the form. Make sure this matches the name registered with the New York State Department of Taxation.
3. Enter the special New York State identification number assigned to the corporation. This is essential for identifying your filing correctly.
4. List the nonresident shareholders in the designated section. Include their name and address, ensuring accuracy as these details influence tax calculations.
5. In the column for Social Security numbers, enter each shareholder's number. Pay special attention to secure private information during this process.
6. Fill in each shareholder's pro rata share of federal income from the S corporation in the correct column.
7. Allocate the appropriate amounts to New York State as indicated in the instructions, ensuring you reflect any negative amounts with a minus (-) sign.
8. List shareholder’s pro rata share of federal S corporation deductions, again allocating to New York State as needed.
9. Calculate and fill out the net amounts of New York additions and subtractions according to the instructions provided in the form.
10. Complete the section for New York taxable income by subtracting the total allocated deductions from the income and adjusting with any additions or subtractions.
11. Determine the New York State tax owed by multiplying the taxable income by the tax rate of 0.1090.
12. If you have multiple Forms IT-203-S-ATT, ensure you tally up the totals correctly and submit one total only on a single sheet.
13. Finally, save your changes, download the completed form, and share it if needed. Review all entries for accuracy before submitting.

Complete your forms online today to ensure timely and accurate submission to New York State.