A large IRA withdrawal or capital gains from the sale of a home, for example, will boost your Medicare premiums if you go over the income cap.
Liz Weston is a columnist for NerdWallet, where she provides personal finance advice. Her articles cover a wide range of topics, including investing, retirement planning, taxes, and consumer protection. Weston's expertise and opinions are featured in numerous publications, including The Oregonian/OregonLive.com, Los Angeles Times, and The San Diego Union-Tribune, among others.