can i claim grandchildren

There are basically five tests to determine if your grandchildren can be claimed on your tax return.

They are as follows:

1. They must be your child, adopted child or foster child, brother or sister or a descendant of one of these. (i.e. This requirement is met if they are her grandchildren.) 
2. They lived with you more than half of the year (these exceptions apply).
3. They are under the age of 19 (unless they are a full-time student. In that case it is age 24. They can be any age if totally and permanently disabled.
4. You provided more than half of their support
5. The child does not file a joint return with anyone else (unless to claim a refund of taxes paid or withheld).

Click here for additional information regarding dependents.

Click here for additional  information on who you can claim as a dependent.

Click here for additional information on how to claim a dependent.