The State of South Carolina's ST-455 form plays a crucial role in the realm of sales and use tax compliance. This form is primarily utilized by businesses to report their gross sales, use tax, and any applicable deductions to the South Carolina Department of Revenue. It encompasses various essential components, starting with the identification of the business, including its retail license or use tax registration number, and any changes in address or business status. The ST-455 requires detailed reporting of gross proceeds from sales and rentals, as well as withdrawals for personal use. Taxpayers must meticulously calculate their net taxable sales and purchases, applying the correct tax rates of 6% and 5% as specified for different categories of goods and services. Notably, the form also incorporates a worksheet section that assists in determining deductions, ensuring that businesses only pay taxes on their taxable sales. Additionally, it outlines the importance of timely filing, as returns postmarked after the 20th day of the month following the reporting period are considered delinquent. Completing the ST-455 accurately is vital, as it not only affects a business’s financial standing but also its compliance with state tax regulations.