Simple question. Regarding SS my wife is currently paying $590 (approx) for Part B due to our income. She has been approved for spousal benefit $1749 (approx) and the Medicare will be taken out of her SS check. Is the entire $1749 taxable or only net of Medicare payment? If she switches to private (i.e. AARP Secure Horizons PPO, etc.) is it any different or are we just getting taxed on everything? Not really complaining, just trying to plan how much to set aside for withholding.