Does Turbotax let you know what your Net Profit is?

I am looking to determine how much I can contribute to a Solo 401K, and I need to know my Net Profit. I am using Quicken Home and Business which gives me my Net Income, however I assume the IRS is going to use what I submit on my tax form as the allowed amount hence why I was hoping Turbotax could give me that number but it wasn't obvious where that is?

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