2027 irmaa brackets based on 2025 income

On 2 November 2026, the Social Security Administration officially released the Income Related Monthly Adjustment Amount (IRMAA) brackets that will apply to Medicare Part B and Part D premiums throughout the 2027 calendar year. These surcharges are determined by the Modified Adjusted Gross Income (MAGI) reported by beneficiaries on their 2025 federal tax returns. For individuals filing as single, the standard premium applies to those with an income of $109,000 or less, while married couples filing jointly are exempt from surcharges if their combined income is $218,000 or less. As income tiers rise above these thresholds, beneficiaries will see incremental increases in their monthly premiums, reaching the highest bracket for individuals earning over $554,000 and couples earning over $1,108,000. This announcement provides critical clarity for retirees planning their 2027 budgets, as the 2025 tax data serves as the primary benchmark for these adjustments. Financial advisors emphasize that those who experienced significant life-changing events since 2025 may still apply for a new initial determination to potentially lower these calculated surcharges.