The Texas Comptroller of Public Accounts is responsible for the tax collection and revenue estimation services. It checks and keeps the books of multibillion dollar businesses. The office serves the citizens of Texas. The Texas Comptroller of Public Accounts provides a variety of assistance solutions for business owners, local officials and individuals. It also offers energy conservation plans. The office produces annual reports and estimates revenues. The Texas Comptroller of Public Accounts additionally performs a variety of purchasing operations. It is responsible for drafting, reviewing and updating procurement manuals and legislative issues. The office provides the Charge Card Program. The Texas Comptroller of Public Accounts collects more than 60 separate taxes, fees and assessments.