Income tax in the Netherlands Income tax in the Netherlands Income tax in the Netherlands (personal, rather than corporate) is regulated by the "Wet inkomstenbelasting 2001" (Income Tax Law, 2001). The fiscal year is the same as the calendar year. Before April 1 citizens have to report their income from the previous year. The system integrates the income tax with fees paid for the general old age pension system (AOW), the pension system for partners of deceased people (), and the national insurance system for special medical care (). There are three categories of income, each with their own tax rates. They are referred to
Corporate tax in the United States Generally, a tax year must be 12 months or 52/53 weeks long. The tax year need not conform to the financial reporting year, and need not coincide with the calendar year, provided books are kept for the selected tax year. Corporations may change their tax year, which may require Internal Revenue Service consent. Most state income taxes are determined on the same tax year as the federal tax year. Groups of companies are permitted to file single returns for the members of a "controlled group" or "unitary group", known as consolidated returns, at the federal level, and are allowed or