2025 Irmaa Brackets Married Filing Separately. Irmaa is a surcharge that people with income above a certain amount must pay in addition to their medicare part b and part d premiums. For beneficiaries of particular income brackets, filing your taxes jointly can save you bundles on your medicare premiums when compared to filing married but separate.
Most other medicare part d beneficiaries earning. The social security administration determines your irmaa tier and premium part b and.