Yes, you can appeal an IRMAA if you disagree with the determination. If you had a major life event that caused a decrease in your income, like the death of a spouse or a loss of pension income, you can complete an online form to request reconsideration within 60 days of getting the notice.Yes, you can appeal an IRMAA if you disagree with the determination. If you had a major life event that caused a decrease in your income, like the death of a spouse or a loss of pension income, you can complete an online form to request reconsideration within 60 days of getting the notice.