See this TurboTax support FAQ for a Form 8379, Injured Spouse Allocation - https://ttlc.intuit.com/questions/1910698-how-do-i-file-form-8379-injured-spouse-allocation
Using a mobile app - https://ttlc.intuit.com/questions/3191959-how-do-i-file-form-8379-injured-spouse-allocation-in-the-m...
