Mack and Mark

Taxes can be distinguished by the impact they have on the allocation of income and wealth. A proportional tax is the kind of tax that imposes the same relative requirement on each taxpayer—i.e., in the case where tax liability and income increase in relative scale. A progressive tax is recognised by a larger than proportional increase in the tax onus in relation to the increase in income, and a regressive tax is recognisable by a less than proportional growth in the comparative liability. Ergo, progressive taxes are thought of as removing the lack of equality in income distribution, while regressive taxes are believed to have the effect of an increase in these inequalities.

The taxes that are normally believed to be progressive include individual income taxes and estate taxes. Income taxes that are categorically progressive, however, might become less so within the upper-income categories—particularly if a taxpayer is allowed to lower his tax base by claiming deductions or by excluding some certain income elements from his taxable income. Proportional tax rates that are applied to lower-income demographics would also be more progressive if exemptions of a personal nature are claimed.

Income measured over the course of a given period might not necessarily offer the best measure of taxpaying requirements. For example, transitory rises in income may be saved, and in temporary declines in income a taxpayer may choose to pay for consumption by taking from savings. Ergo, if taxation is regarded along with “permanent income,” it will be less regressive (or more progressive) than when it is compared with annual income.

Sales taxes and excises (with the exception of those on luxuries) are mostly regressive, because the portion of individual income consumed or spent for specific goods decreases as the amount of personal income grows. Poll taxes (also known as head taxes), levied as a standard amount per capita, patently are regressive.

It is not easy to dictate corporate income taxes and taxes on business as progressive, regressive, or proportionate, because of a lack of certainty surrounding the ability of businesses to shift their tax expenses (see below Shifting and incidence). This difficulty of nominating who bears the tax burden rests essentially on whether a national or a subnational (that is, provincial or state) tax is being decided.

In considering the economic effect of taxation, it is relevant to differentiate between various concepts of tax rates. The statutory rates include those specified in legislature; usually these are marginal rates, but in some cases they are median rates. Marginal income tax rates signify the fraction of incremental income taken by taxation when income grows by one dollar. Therefore, if tax liability rises by 45 cents when income grows by one dollar, the marginal tax rate is 45 percent. Income tax legislation usually contain graduated marginal rates—i.e., rates that rise as income rises. Heavy analysis of marginal tax rates are required to regard provisions apart from the formal statutory rate structure. If, for example, a particular tax credit (reduction in tax) lessens by 20 cents for each one-dollar growth in income, the marginal rate is 20 percentage points greater than specified by the statutory rates. Since marginal rates specify how after-tax income is changed in response to changes in before-tax income, they are the important ones for assessing incentive effects of taxation. It is even more difficult to nominate the marginal effective tax rate applicable to income from business and capital, because it may rely on such factors as the structure of depreciation allowances, the deductibility of interest, and the provisions for inflation adjustment. A basic economic theorem determines that the marginal effective tax rate in income from capital is nothing under a consumption-based tax.

Average income tax rates signify the fraction of total income that is demanded in taxation. The pattern of average rates is the one that is in consideration for judging the distributional equity of taxation. Under a progressive income tax the average income tax rate grows with income. Average income tax rates usually increase with income, both because personal allowances are permitted for the taxpayer and dependents and also because marginal tax rates are graduated; on the other hand, preferential treatment of income received for the most part by high-income households can dampen these effects, allowing regressivity, as indicated by average tax rates that lessen as income rises.

For MYOB Brisbane expert advice, contact Stone Consulting today. Stone Consulting also runs MYOB training in Brisbane.