[quote]Since 2000 she has been on soc sec disability. She has never paid a dime of tax from her check. It all comes out of mine.

So i did give her her 600 payment this year but in theory, really isnt that mine? [/quote]

It isn't yours. Not even in theory. Had you filed married filing separately, you would have only gotten the $600. The other $600 is hers.