My spouse has no income, but we filed a joint return. My spouse owes child an outstanding child support debt. Do I need to file an injured spouse form?

[DoninGA]

Yes you should.

See this TurboTax support FAQ for injured spouse - https://ttlc.intuit.com/turbotax-support/en-us/help-article/spouse-partner/file-form-8379-injured-sp...

[MinhT1]

Yes.

Per IRS: "You may be an injured spouse if you file a joint tax return and all or part of your portion of the overpayment was, or is expected to be, applied (offset) to your spouse's legally enforceable past-due federal tax, state income tax, state unemployment compensation debts, child or spousal support, or a federal nontax debt, such as a student loan."

To file Form 8379 - Injured Spouse, please read this TurboTax Help topic.