South Carolina K-1 (Form 1120S) reports a shareholder's share of an S-corporation's income, deductions, and state adjustments specifically for South Carolina tax purposes. These forms often contain detailed information on various income items (e.g., ordinary business income, net rental real estate income, interest income, dividend income, capital gains/losses), deductions, and credits, which can be subject to specific South Carolina tax laws and regulations. The varying layouts, preparer-specific formats, and extensive footnotes commonly found across these K-1s can significantly slow down the manual review and data entry process for tax professionals. Abacus addresses these challenges by extracting all relevant fields from K-1 (Form 1120S) PDFs and normalizing them into standardized Excel workbooks. This process includes meticulously handling South Carolina-specific add-backs, various state tax credits, and detailed ownership information, ensuring the data is clean, accurate, and ready for efficient import directly into tax preparation software like CCH or GoSystem.