You can complete an Injured Spouse Form 8379 with your personal tax return when filing as Married Filing Jointly. This will prevent your portion of any tax refund being seized for the back child support debt. But not your spouse's portion. See this TurboTax support FAQ for a Form 8379 - https://ttlc.intuit.com/questions/1910698-how-do-i-file-form-8379-injured-spouse-allocation
To complete a Form 8379 -
- Click on Federal Taxes (Personal using Home and Business)
- Click on Other Tax Situations
- Scroll down to Other Tax Forms
- On Miscellaneous Tax Forms, click the start or update button
On Report an innocent or injured spouse claim, click the start or update button
Or enter 8379, injured spouse claim and allocation in the Search box located in the upper right of the program screen. Click on Jump to 8379, injured spouse claim and allocation
