What countries practising regressive tax?

Countries that practice regressive taxation typically impose taxes that take a larger percentage of income from low-income earners compared to high-income earners. Examples include the United States, where sales taxes and certain state taxes can disproportionately affect lower-income individuals. Similarly, countries like Mexico and Brazil have been criticized for their reliance on consumption taxes, which can burden poorer citizens more heavily. Overall, regressive tax systems are often found in various forms across many nations, particularly where indirect taxes are prevalent.