After you file

@tsgtwheeler The tax preparation software programs are written to comply with all of the tax laws in effect for the specific tax year.  They are checked thoroughly by the IRS.   Entering the same information into any of the software programs should get you the same results.  If your results using H & R Block and TurboTax are off by "thousands" then you are doing something wrong with one of those software programs.   A huge difference like that is user error somewhere---not the software.   Good luck.

**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.**