the only way you get $300 is if you are retired and on SS or if you didn't make enough wheere you had tio file, which is like $6,000. Everybody else gets $600 if single, $1,200 if filed jointly and $300 per child. up to a income limit of I think $75,00 single, $150,000 married. there are no taxes taken out, it's a straight $300/$600/$1,200