2024 Additional Medicare Tax Limit For Seniors. The 2024 medicare tax rate remains at 1.45% for both employees and employers totaling 2.9%, as it was in 2023. For 2024, the medicare surtax thresholds are set to impact single filers with an adjusted gross income (agi) above $200,000 and married couples filing jointly with an agi.

Unlike the additional medicare tax, there is no base limit on wage, so all wages are subject to. For 2024, beneficiaries must pay an extra amount if their 2022 modified gross adjusted income reached $103,000 (or $206,000 if they file their taxes jointly with a spouse).