The short answer to this question is: it depends. There are a lot of different scenarios in how debt is handled. The questions surrounding debt are usually: What type of debt? Who is owed? How Much? For what? When it comes to garnishment of social security or pension benefits, the type of debt is the most significant factor in regards to how creditors are legally allowed to proceed. Type of Debt Credit Card debt, Car/Boat Payment, Home Mortgage: In most circumstances, a max of up to two months worth of your full social security or pension benefits are to be.