• Children can be claimed on a parent's taxes as long as they cannot claim themselves.tax forms image by Chad McDermott from Fotolia.com
  
  

Until Child Turns 19

• Parents can claim their children on their taxes as a dependent until they are 19 years old. If the child is permanently and totally disabled, no age limit applies.
  
  

Until Child Can Claim Himself

• Parents can claim their child as a dependent until he is able to claim himself on his own tax return, which can be as soon as he goes to work or provides more than 50 percent of his own support.
  
  

Bottom Line

• As long as the child does not provide more than 50 percent of her own support, does not claim herself on taxes and lives with you more than half of the year, you can claim the child as a dependent until she is 24, as long as she is going to school.