Русско-англо-русский юридический словарь

tax audit – an official examination of the information that a person or a business provides to the tax authority to check that it is accurate and legal ( Cambridge Business English Dictionary)

tax authority – an organization with official responsibility for collecting taxes. (Cambridge Business English Dictionary)

Deferred tax assets are created due to taxes paid or carried forward but not yet recognized in the income statement. Its value is calculated by taking into account financial reporting standards for book income and the jurisdictional tax authority's rules for taxable income. For example, deferred tax assets can be created due to the tax authority recognizing revenue or expenses at different times than that of an accounting standard. This asset helps in reducing the company’s future tax liability. (Investopedia)