Maybe before you end up on "Dr. Phil" over the startup costs of the new business---have your spouse do some reading:
Click this link for more info on Startup Expenses and How to Enter Startup Costs in TurboTax.
Perhaps she can be convinced to file a joint return.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
