If you recently retired from a high-paying job, you may be surprised at the cost of your Medicare premiums. That’s because high-income earners pay more for two different monthly Medicare premiums. An income-related monthly adjustment amount, or IRMAA, is an extra Medicare cost added to your Part B and Part D premiums. The Social Security Administration determines whether you’re required to pay an IRMAA based on the modified adjusted gross income reported on your IRS tax return from two years prior. You can appeal an IRMAA in two situations: a life-changing event reduced your income or if your tax information needs to be corrected. Keep reading for more information.
https://www.retireguide.com/medicare/costs-and-coverage/irmaa/