What is the maximum amount that can be garnished from a payor's paycheque for support?

There isn't a single simple percentage that applies to every paycheque in every case; how much can be deducted depends on the support obligation itself, any arrears being addressed at the same time, and protections built into the enforcement framework meant to leave a payor with some minimum income to live on. Support enforcement is generally treated differently from garnishment for ordinary consumer debts, reflecting the priority given to child and spousal support, but that doesn't mean an unlimited amount can be taken regardless of the payor's circumstances.

Because the actual amount deducted depends on the payor's income, the support obligation and any arrears, and the specific protections that apply, it isn't accurate to state one maximum figure as a general rule for every situation. A payor who believes an excessive amount is being deducted, or a recipient trying to understand what should be coming through, should raise the question directly with the Family Responsibility Office or get advice from a family lawyer who can look at the specific order and income details, rather than relying on an assumed percentage that may not reflect how the current case is actually being handled.