I want to ask if I can put to my grandfather in my taxes because he is retiree.

[koha662466]

He has 72 years. i think that He collected money of retirement plan

[DoninGA]

If he has gross income of $4,700 or more in 2023 (Social Security does not count) then you cannot claim him as your dependent.

[xmasbaby0]

We do not have enough information.   Are you providing over half the support for your grandfather?    Does he live with you--or does he live somewhere else?    Does he have more than $4700 of income from any source except Social Security?  You say he has a "retirement plan."   If he has more than $4700 of income from that plan then you cannot claim him as a dependent.