The State of South Carolina's ST-455 form is an essential document for businesses operating within the state, serving as the State Sales, Use, and Maximum Tax Return. This form is primarily used to report gross sales, rental income, and other taxable transactions, ensuring that businesses comply with state tax regulations. It requires users to detail their gross proceeds from sales and rentals, as well as any withdrawals for personal use. The form includes specific sections for calculating both sales and use tax at different rates—6% and 5%—which are applicable to various goods and services. Additionally, it provides a worksheet on the reverse side, guiding users through deductions and net taxable sales calculations. The ST-455 also addresses changes in business status, such as a change of address or permanent closure, and requires taxpayers to sign and date the return, affirming its accuracy. Proper completion and timely submission of this form are crucial, as delinquent returns can result in penalties. Understanding the intricacies of the ST-455 form is vital for business owners to ensure compliance and avoid unnecessary complications with the South Carolina Department of Revenue.