High-income earners must understand their 2025 tax obligations, which include the Additional Medicare Tax. This is a 0.9% surtax on earnings above certain limits and went into effect in 2013 under the umpire Affordable Care Act (ACA) and impacts wages, self-employment income, and other compensation means. When exceeding IRS limits concerning income, this tax becomes … Continue reading When are individuals liable for Additional Medicare Tax in 2025?