Markets & Economy The Second Tax Window: What You Do at 63 and 64 Sets Your Medicare Premium at 65 August 30, 2026 · 6:21 pm 1 sources Image: Yahoo Finance ad slot · in-content video 16:9 Coverage More coverageThe Second Tax Window: What You Do at 63 and 64 Sets Your Medicare Premium at 65Yahoo Finance · August 30, 2026 18:21