Final answer:
A charge based on the use of government services is known as a user fee, which differs from taxes that can be regressive, progressive, or proportional, such as regressive excise taxes.
Step-by-step explanation:
The charge that is based on the use of government services is known as a user fee. Unlike taxes that can be regressive, progressive, or proportional based on how they affect different income levels, a user fee is a charge for the direct use of a government service, such as entry to a national park or the cost of filing legal documents. For example, excise taxes on goods like alcohol and tobacco are regressive because they tend to take a larger percentage of income from lower-income individuals, even though everyone pays the same rate, but these taxes are not based on the use of government services.