To determine the type of income tax structure in their country, we can analyze the tax burden relative to income for both George and Julia.
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George's Tax Burden:
- Income: $50,000
- Tax Paid: $7,500
- Effective Tax Rate = Tax Paid / Income = $7,500 / $50,000 = 0.15 or 15%
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Julia's Tax Burden:
- Income: $80,000
- Tax Paid: $9,000
- Effective Tax Rate = Tax Paid / Income = $9,000 / $80,000 = 0.1125 or 11.25%
Now, let’s analyze the effective tax rates:
- George has an effective tax rate of 15%.
- Julia has an effective tax rate of 11.25%.
Since George has a higher effective tax rate than Julia despite earning less, this indicates that as income increases, the rate of taxation decreases.
This situation corresponds to a regressive income tax structure, where higher earners pay a lower percentage of their income in taxes compared to lower earners.
Thus, the answer is regressive income tax.