In 2014 I wrote about this (see below) and said, ‘No,” but it’s a little more complicated than that.  

Filing Bankruptcy won’t affect your normal monthly child Support payments. But, it can affect back-child support.  Let’s say that you pay $500 a month in child support.  You are behind, a lot, and they are garnishing that $500 plus another $250 a month for back child-support.  If we file a chapter 13 case and propose to cover the back child support as part of your chapter 13 payments, then ORS will go back to garnishing the original $500. You still have to pay the back child support as part of your chapter 13 case, but it can be stretched over your 5 year (60 month) chapter 13 plan.

So, technically, filing bankruptcy can stop some of your Payroll Garnishment for child support.

Will bankruptcy stop my paycheck garnishment for child support?