Under which taxation principle does the percentage of income paid in taxes increase as income increases?

Question

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The progressive tax principle is the taxation principle where the percentage of income paid in taxes increases as income increases. This means that higher-income individuals pay a higher percentage of their income in taxes compared to lower-income individuals. This is considered a fair taxation principle because it supports the ability-to-pay principle, which states that individuals with higher incomes have a greater ability to pay taxes.

Under Which Taxation Principle Does the Percentage of Income Paid