Government Pension Offset

Your Government Pension May Affect Social Security - Government Pension Offset (GPO)
The Government Pension Offset, or GPO, affects spouses, widows, and widowers with pensions from a federal, state, or local government job. It reduces their Social Security benefits in some cases.
If you receive a pension from a government job but did not pay Social Security taxes while you had the job, we’ll reduce your Social Security spouse, widow, or widower benefits by two-thirds of the amount of your government pension. This offset is known as the GPO.
Links to two important issues:
Windfall Elimination Provision