I have been taking care of my elderly parent for the past few years (feed, bathe, cook, manage prescriptions, take to doctors appointments, etc.), as he lives with me in an "in-law suite" that I had built in the basement of my home. I have helped him file his taxes each year. I am just now realizing that I could have been claiming him as a dependent on my own taxes as his earned income has always been below the limit each of these years (current limit is $4700 for 2023 tax year I believe). I have always chosen "No" to "can someone claim you as a dependent" on his taxes, and did so again this year already submitted his taxes this year (he never owes taxes but we submit them anyways). I have not flied my taxes yet for tax year 2023. Is it too late to claim him on my taxes this year as a dependent? Also, is it too late to file an amended return for past years when I could have claimed him as a dependent? Will choosing "No" to "can someone claim you as a dependent" on his taxes for this year and past years cause any issues if I claim him as a dependent on my taxes this year and for prior years (if I file amended returns)?
