If you were invested in stocks and stock mutual funds, 2025 was a good year, albeit not a smooth one at times. But in the end, the results were higher balances for many retirees’ investments. The S&P 500 ended the year with a gain of around 18%. The Dow Jones Industrial Average jumped nearly 13%, and the Nasdaq ballooned close to 21%. But how much of that will you get to keep? The dividends and capital gains you get from these investments do come with a tax bill. Meanwhile, Social Security recipients ...