Audit and assurance services are a type of professional service that provides independent assurance on the accuracy and reliability of a company's financial statements, internal controls, and compliance with laws and regulations. These services are typically provided by external auditors, such as certified public accountants (CPAs), who conduct a thorough examination of a company's financial records and systems to express an opinion on their fairness and accuracy. Audit and assurance services can also include other types of examinations, such as reviews and compilations, which provide varying levels of assurance on a company's financial statements. The goal of these services is to provide stakeholders, including investors, lenders, and regulators, with confidence in the accuracy and integrity of a company are financial reporting.