I don’t see the fairness in the IRMAA methodology. I am living off my IRA. Every withdrawal I need to withdraw an extra 20%. Then my SS is 85% taxable which then requires me to withdraw the tax amount + 20%. This year I had open heart surgery total out of pocket $9500 so need to pull out that amount + 20%. So like last year I may AGI may reach $160K but it wasn’t income when almost $40K was to pay taxes.
Make sure you downsize your house, 2 years before you take Medicare. I don't see an appeals process for downsizing your primary residence. Why? because they know thousands will do this before retirement, this giving them more opportunity to collect more taxes.. Two things are certain in life taxes and death!