The principles often used to determine tax financial assets in such a company or person account reports are tax accounting. Instead of using one of the accounting systems, including GAAP or IFRS, tax accounting is based mostly on Internal Revenue Code (IRC). Tax accounting results in a taxable income estimate which differs from the revenue estimate stated on the income statements of an entity. The distinction is since tax laws can speed up or slow down the acknowledgement of such expenditures, which would usually be recognized in an accounting cycle.