Short answer. No. Both the right to receive support and any money or property you actually obtained as support are protected from being levied upon through attachment or execution, so a creditor cannot seize support funds to satisfy an ordinary debt you owe.
What the law says
The right to receive support under this Title as well as any money or property obtained as such support shall not be levied upon on attachment or execution.
Family Code, Article 205 — Support Is Exempt From Attachment and Execution. Read the full provision →
Two things are protected, not just one
The exemption covers the right to receive support itself and the money or property already obtained as support. That second part answers your question directly: it is not only future, unpaid support that is shielded from creditors — money that has already been handed to you because it came from support is likewise exempt from being levied upon on attachment or execution.
Why the law protects support this way
Support exists to meet the recipient's basic needs — food, shelter, education, and similar necessities. If ordinary creditors could seize support funds the moment they were paid, the protection the law gives to a dependent spouse, child, or other person entitled to support would be hollow, since the money would simply be redirected to satisfy someone else's unrelated debt instead of the purpose it was meant to serve.
What this exemption does not do
This protection applies to support money as such — it does not exempt every peso in your possession simply because you also happen to receive support from someone. If the funds have been converted into other assets or commingled to the point that they can no longer reasonably be traced back to support, or if a creditor is pursuing a claim that is itself for unpaid support owed to someone else, this specific exemption may not apply the same way. The exemption is tied to the character of the money as support, not to the recipient generally.
Who benefits from this exemption
This protection runs to whoever is legally entitled to support under the Family Code's rules — typically a spouse, a child, or another relative the law recognizes as entitled to support from a particular obligor. It applies regardless of who the creditor is or what kind of debt they are trying to collect; the exemption is about the nature of the money as support, not about which creditor is asking or how legitimate that creditor's underlying claim might otherwise be. A garnishment order directed at support funds runs into this exemption on its face, and raising it is generally the responsibility of the person whose support money is being targeted.