Income tax the discussion of taxation by the United States of foreign persons. Residents, however, are generally subject to income tax on all worldwide income. A very few countries (notably Singapore and Hong Kong) tax residents only on income earned in or remitted to the country. Residence is often defined for individuals as presence in the country for more than 183 days. Most countries base residence of entities on either place of organization or place of management and control. The United Kingdom has three levels of residence. Most systems define income subject to tax broadly for residents, but tax nonresidents only on
Income tax in the United States applies to net investment income in excess of certain thresholds. An individual pays tax at a given bracket only for each dollar within that tax bracket's range. The top marginal rate does not apply in certain years to certain types of income. Significantly lower rates apply after 2003 to capital gains and qualifying dividends (see below). Income tax for year 2017: Single taxpayer making $40,000 gross income, no children, under 65 and not blind, taking standard deduction; Note, however, that taxpayers with taxable income of less than $100,000 must use IRS provided tax tables. Under that table for 2016, the