Social Security Optimizer calculates your SS benefits based upon income or allows you to enter directly the SS Benefit derived from SSA.gov. Besides SS optimal start dates, the tool also takes into account WEP(windfall elimination provision for individual reductions) and GPO (government pension offset for spousales) reductions due to non-covered (no social security taxes deducted) pensions as well as calculates the survivor benefit. Display either Optimization for all combinations of SS start dates or select an individual combination to see details for a particular combination of start dates.