Get your taxes done using TurboTax

What "IRS calculation" did you try to use?  If you used that worksheet on the back of the SSA1099, it is not as simple as you may think.  You should enter your SSA1099 exactly as it appears and let the software do the calculations.
**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.**