You should file form 8379 - Injured spouse with your joint return to stop the IRS from offsetting your share of the refund.
To file Form 8379 - Injured Spouse, please read this TurboTax Help topic.
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."
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