South Carolina State Tax Filing 2026

1. Click ‘Get Form’ to open the SC1040 in our platform's editor.
2. Begin by entering your Social Security Number (SSN) and personal details in the designated fields. Ensure accuracy to avoid processing delays.
3. Fill in your federal taxable income from your federal return on line 1. If you are a nonresident, complete the Schedule NR and enter the total from that schedule.
4. Proceed to add any necessary additions to your federal taxable income, such as state tax addbacks or out-of-state losses, as instructed on lines a through e.
5. Next, subtract any applicable deductions from your federal taxable income on lines f through w. This includes state tax refunds and retirement deductions.
6. Calculate your total South Carolina tax based on the income subject to tax and enter it on line 6. Use the provided tax tables for accurate calculations.
7. Review all entries for accuracy before submitting. Utilize our platform’s features to save and share your completed form easily.

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