Can I claim my grandson if his mother was unemployed last year and I’m taking care of him

[KathrynG3]

It depends on if you meet the tests to qualify your grandson as a dependent. He must be under 19 years old and you must provide over half of his support. For more details, see Who can I claim as my dependent?

[Critter-3]

If you all live together and your daughter had less than $4300 of income then you can probably claim them both.  

[pook739]

Yes my grandson is 6 and my daugther is 27 and they both live with me and I provide all his support

[Critter-3]

The simply follow the interview screens in the MY INFO section to add dependents.