We fully account for both the Government Pension Offset (GPO) and the Windfall Elimination Provision (WEP).
You can enter information about pensions based on work not taxed by Social Security on the Non-Covered Pensions panel. Be sure to read and understand the instructions and help items in that panel so you can enter the correct information.
The effects of the non-covered pension are included in the results. You can explicitly see how the GPO and WEP affect the results by temporarily deleting the non-covered pension and comparing the results with and without the non-covered pension.