If i claim my son and owe back child suport on him will the mother get all my tax return

[SweetieJean]

Did he live with you in 2017?

[smallfriezzz]

Just only the weekend when he visited

[smallfriezzz]

If I didn't claim him and I have to pay in, will she still get the rest of my taxes?

[SweetieJean]

You do not qualify to claim him as a dependent, unless his mother releases that to you via a signed Form 8332.

But any refund you get can be seized for back child support anyway.