An income tax is a tax levied on the income of individuals or business (corporations or other legal entities). Various income tax systems exist, with varying degrees of tax incidence. Income taxation can be progressive, proportional, or regressive. When the tax is levied on the income of companies, it is often called a corporate tax, corporate income tax, or profit tax.

Individual income taxes often tax the total income of the individual (with some deductions permitted), while corporate income taxes often tax net income (the difference between gross receipts, expenses, and additional write-offs). Various systems define income differently, and often allow notional reductions of income (such as a reduction based on number of children supported).

Why Income Tax

Almost all governments are funded, at least in part, by some form of taxation on their citizens. Most of these taxes are collected at the time of a sale or service, but others are collected at the end of a 12-month period called a fiscal year. One such yearly levy is the oft-dreaded income tax. Income tax is essentially a bill from the federal and state governments for individual earnings through salaries and investment profits. In Idia usually the income tax is considered a progressive tax because the individual’s financial obligation rises with the level of reportable income.

The concept of taxing income is a modern innovation and presupposes several things: a money economy, reasonably accurate accounts, a common understanding of receipts, expenses and profits, and an orderly society with reliable records. For most of the history of civilization, these preconditions did not exist, and taxes were based on other factors. Taxes on wealth, social position, and ownership of the means of production (typically land and slaves) were all common. Practices such as tithing, or an offering of firstfruits, existed from ancient times, and can be regarded as a precursor of the income tax, but they lacked precision and certainly were not based on a concept of net increase.

Some of the Types of Tax

Personal
A personal or individual income tax is levied on the total income of the individual (with some deductions permitted). It is often collected on a pay-as-you-earn basis, with small corrections made soon after the end of the tax year. These corrections take one of two forms: payments to the government, for taxpayers who have not paid enough during the tax year; and tax refunds from the government for those who have overpaid. Income tax systems will often have deductions available that lessen the total tax liability by reducing total taxable income. They may allow losses from one type of income to be counted against another. For example, a loss on the stock market may be deducted against taxes paid on wages.

Corporate
Corporate tax refers to a direct tax levied by various jurisdictions on the profits made by companies or associations and often includes capital gains of a company. Earnings are generally considered gross revenue minus expenses. Corporate expenses that relate to capital expenditures are usually deducted in full (for example, trucks are fully deductible in the Canadian tax system, while a corporate sports car is only partly deductible)over their useful lives by using % rates based on the class of asset they belong to.Notably, accounting rules about deductible expenses and tax rules about deductible expenses will differ at times, giving rise to book-tax differences. If the book-tax difference is carried over more than a year, it is referred to as a temporary difference, which then creates deferred tax or future assets and liabilities for the corporation, which are carried on the balance sheet.

Payroll
A payroll tax generally refers to two kinds of taxes. Taxes which employers are required to withhold from employees’ pay, also known as withholding, pay-as-you-earn (PAYE) or pay-as-you-go (PAYG) tax. These withholdings contribute to repayment of an employee’s personal income tax obligation; if the payments exceed this obligation, the employee may be eligible for a tax refund or carryforward to future periods.

Other group of payroll taxes are paid from the employer’s own funds, either as a fixed charge per employee or as a percentage of each employee’s pay. Payroll taxes often cover government social insurance programs such as social security, health care, unemployment, and disability. These payments do not count towards income taxes of employees and employers, but are normally deductible by the employers.

Inheritance
The inheritance tax, estate tax and death duty are the names given to various taxes which arise on the death of an individual. In international tax law, there is a distinction between an estate tax and an inheritance tax: the former taxes the personal representatives of the deceased, while the latter taxes the beneficiaries of the estate. However this distinction is not always respected. For example, the “inheritance tax” in the UK is a tax on personal representatives, and is therefore, strictly speaking, an estate tax.

Capital gains tax
A capital gains tax is the tax levied on the profit released upon the sale of a capital asset. In many cases, the amount of a capital gain is treated as income and subject to the marginal rate of income tax. However, in an inflationary environment, capital gains may be to some extent illusory: if prices in general have doubled in five years, then selling an asset for twice the price it was purchased for five years earlier represents no gain at all. Partly to compensate for such changes in the value of money over time, some jurisdictions, such as the United States, give a favorable capital gains tax rate based on the length of holding. European jurisdictions have a similar rate reduction to nil on certain property transactions that qualify for the participation exemption. In Canada, 20–50% of the gain is taxable income. In India, Short Term Capital Gains Tax (arising before 1 year) is 10% [15 % from F.Y 2008-09 as per Finance Act 2008] flat rate of the gains and Long Term Capital Gains Tax is nil for stocks & mutual fund units held 1 year or more, provided the sale of shares involved payment of Securities Transaction Tax and 20% for any other assets held 3 years or more.