At 65, He’ll Sell One Stock for a $120,000 Gain and Another for a $100,000 Loss. Medicare Will See Only the $20,000 Net Gain, and His Premium Won’t Move

A retiree panicked after a friend warned that a six-figure stock gain could increase Medicare premiums. The article says the IRS calculates capital gains in a way that Social Security may not register the transaction; it provides no specific tax or premium figures.