Don't let the IRMAA brackets 2026 surprise you during retirement. These income-based thresholds are used to calculate whether you owe more for Medicare, using data from your 2024 tax return. The IRMAA brackets 2026 are tiered, and even a small change in income could push you into the next premium bracket. The good news is that proper planning now—such as reviewing investment income or... https://www.federalpensionadvisors.com/post/2025-irmaa-brackets