A tax cut is a reduction in the rate of tax charged by a government, for example on personal or corporate income. Whether a given tax cut will increase or decrease total tax revenues is much discussed by both economists and politicians.
The immediate effects of a tax cut are, generally, a decrease in the real income of the government and an increase in the real income of those whose tax rate has been lowered. In the longer term, however, the effect on government income may be reversed, depending on the response that tax-payers make. Supply-siders argue that tax cuts for corporations and wealthy individuals provide them with an incentive for investments which stimulate so much economic activity that even at the lower rate more net tax revenue will be collected.
The longer term macroeconomic effects of a tax cut are not predictable in general, because they depend on how the taxpayers use their additional income and how the government adjusts to its reduced income. Four idealised scenarios can be hypothesised:
In practice it is likely that a mixture of these effects will occur, and the net effect of any tax cut will depend on the balance between them. It will therefore be a function of the overall state of the national economy. In conditions where most goods and services (especially those frequently purchased out of discretionary income, such as consumer durables) are produced domestically, a tax cut is more likely to provide a macroeconomic stimulus than in conditions where most consumer durables are imported. Furthermore, the actual effect will inevitably be difficult to discern, because ofnumerous other changes in the economy between the time when a tax cut is proposed and the time when its full effects would be realized.
If government does reduce its expenditure to accommodate tax cuts, there must necessarily be reductions in government services, and there may also be a reduction of the government's capacity to redistribute income to reduce income inequalities. Critics of tax cuts argue that this leads to a fall in overall economic welfare because the effects fall disproportionately on those with the lowest incomes.
In the United States in recent decades, most "supply-siders" have been Republicans (though the largest individual tax cut was initially proposed by President Kennedy), and President Ronald Reagan signed tax cuts into law, in the belief that cutting the tax rate would stimulate investment and spending, with overall beneficial effects -- including increased tax revenues. However, real (inflation-corrected) tax revenues dropped from 1981 to 1983 and did not surpass their 1981 level until 1985 (as shown in Table 1.3 in the Historical Tables of the 2006 U.S Budget). Even this recovery was arguably helped by the Tax Equity and Fiscal Responsibility Act of 1982, the Social Security Amendments of 1983, and the Deficit Reduction Act of 1984, all of which were estimated to have a positive effect on revenues. *" target="_blank" > In fact, there are some who credit the Reagan tax cuts with the eventual surpluses of the 1990s [http://www.washtimes.com/commentary/20040204-084711-8539r.htm Democratic Governor Bill Richardson in recent years has supported tax cuts to spur job growth. The most recent tax cut derived from President George W. Bush. Critics of this tax cut argue that it has produced the most detrimental presidential tax cuts to date. The tax cut has effectively widened the gap between both ends of the financial spectrum. The average annual income for the lower 25% has decreased by 10 percentage points, while the average income for the upper 5% has increased by 15 percentage points.
Much discussion has occurred regarding the optimum capital gains tax rate, with some advocates calling for tax cuts in the belief that a lower rate (e.g., under 25%) will provide an incentive to investors to sell old stocks and invest in new stocks -- which supply siders maintain encourages the creation of new jobs, reduces unemployment, and has the paradoxical effect of increasing tax revenues more or less immediately, an idea first proposed by economist Arthur Laffer while an advisor to Ronald Reagan (See Laffer curve). In addition, a recent report issued by the Cato Institute argues that the burden of capital gains tax is felt by the poor much more than the rich. The report quotes a painting contractor as saying: "You're looking at a poor man who thinks the capital gains tax cut is the best thing that could happen to this country, because that's when the work will come back. People say capital gains are for the rich, but I've never been hired by a poor man."(emphasis added by the editor of this entry) While this paradoxical effect is clearly possible in principle, opponents of capital gains tax cuts are not persuaded that it occurs in practice. They therefore argue that the rate of capital gains tax should be raised, since it is paid primarily by the better off, who can afford to contribute disproportionately to government revenues