1) Tax term 
A progressive tax is a tax where the tax rate increases as the taxable base amount increases. The term `progressive` refers to the way the tax rate progresses from low to high, with the result that a taxpayer`s average tax rate is less than the person`s marginal tax rate. The term can be applied to individual taxes or to a tax system as a whol...
tax that imposes a larger burden (relative to resources) on those who are richer; its opposite, a regressive tax, imposes a lesser burden on the ... [3 related articles]
A progressive tax is a tax that takes an increasing proportion of income as income rises. Income tax is an example of a progressive tax, as the rate increases as a person earns more.
Tax such that the higher the income of the taxpayer the greater the proportion or percentage paid in that tax. This contrasts with regressive taxes where the proportion paid falls as income...
A tax rate which increases as the amount of one's income increases.
A tax that takes a larger percentage of income from high-income groups than from low-income groups.
[n] - any tax in which the rate increases as the amount subject to taxation increases
noun any tax in which the rate increases as the amount subject to taxation increases
Tax which takes a greater proportion or percentage the higher the income of the taxpayer. This contrasts with regressive tax, where the proportion paid falls as income increases, and proportional tax, where the proportion paid remains the same at all levels of income. Examples of progressive taxes in the UK include income tax and capital gains tax
Progressive tax is a type of taxation in which individuals or groups with high incomes pay a larger percentage than those with lower incomes. It is based on the idea that the more money one has the more ability they have to pay.