Social Security has a progressive benefit formula that generates a higher replacement rate for lower earners than higher earners; that is, monthly benefits represent a larger share of previous earnings for lower earners. The program also provides auxiliary benefits to some spouses without lowering the benefit of the worker with such a spouse. In the absence of special rules, workers or spouses with extended careers outside Social Security (for example, some federal, state, and local employees) would gain from these provisions even though the provisions were not intended to benefit those with public pensions provided outside Social Security. In both cases, Congress has enacted rules to limit the extent to which Social Security provides unwarranted subsidies to workers with pensions based on noncovered work. Some advocates and policymakers, however, have expressed dissatisfaction with the workings of these rules and we propose a modification to address them.

The government pension offset (GPO) reduces Social Security spousal or widow(er) benefits by $2 for every $3 received from a pension based on federal, state, or local government employment not covered under Social Security. Under Social Security, spouses of retired, disabled, or deceased workers are entitled to Social Security benefits on the basis of the worker's earnings history. To clarify the discussion, we refer to the primary worker as spouse A and the person benefiting from the spousal or widow(er) benefit as spouse B. As long as the retirement benefit that spouse B earns based on his or her own work record is smaller than the spousal or widow(er) benefit based on spouse A's work record, spouse B's total Social Security benefit is unaffected by having worked at covered jobs. In other words, a spouse working in employment covered by Social Security has his or her spousal and widow(er) benefit reduced dollar-for-dollar for any retirement benefits earned under Social Security, until the retirement benefit exceeds the benefit he or she would have received without working.

Social Security has a progressive benefit formula that generates a higher replacement rate for lower For example, consider a worker (spouse A) whose Social Security benefit is $1,500 per month. The worker's spouse (spouse B) would normally be entitled to a spousal benefit of $750 per month even if B never worked. If spouse B had worked, B's total Social Security benefit (including both the spousal benefit and B's own retirement benefit) remains $750 unless B's work is so extensive that B's own retirement benefit is higher than $750.