SC SCH.TC-18 2026

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The document outlines the Research Expenses Credit for taxpayers in South Carolina, detailing how to calculate and claim the credit against individual or corporate income tax and corporate license fees. It specifies that the credit is 5% of qualified research expenses incurred in South Carolina, with limitations on its use and carryforward provisions. Additionally, it emphasizes the requirement to claim a corresponding federal credit under Internal Revenue Code Section 41 and includes privacy disclosures regarding personal information.

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Click ‘Get Form’ to open SC SCH.TC-18 in the editor.
Begin by entering your name as shown on your tax return in the designated field.
Input your Social Security Number (SSN) or Federal Employer Identification Number (FEIN) in the appropriate section.
For line 1, enter the total qualified research expenses made in South Carolina. This is crucial for calculating your credit.
Proceed to line 2 and calculate 5% of the amount from line 1; this represents your current year credit.
If applicable, include any research expenses credit carried forward from previous years on line 3.
Continue filling out lines 4 through 10, ensuring you follow the instructions for each calculation carefully to determine your total credits and liabilities.

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