2025 Irmaa Brackets For Medicare Premiums Ssa 2025. The irmaa is an amount paid on top of the premiums for part b and d paid be eligible medicare beneficiaries, provided you exceed annual income limits based on tax. Each year, the medicare part b premium, deductible, and coinsurance rates are determined according to provisions of the social security act.

For 2025 irmaa calculations, the ssa will use your 2022 tax return information. If your income decreases, your premiums can revert to lower levels in.