Advise on the scenario.

Recently, I retired. I started collecting a small pension and social security. My wife is also retired and collects social security. When I was out with my friends golfing, one of them told me that my social security income might be taxable. I couldn't believe it! paid that money while I was working, so why would it be taxable when I get it as my retirement? Since my friend said that he wasn't 100% sure, I figured I would write to you to find out. Can you please let me know if any of my social security checks are included on my tax return? - Retired and curious In order to provide sound advice, you must include the tax code section(s) that you examined to arrive at your conclusion