Social Security operates as a pay-as-you-go system: current workers' payroll taxes fund current retirees' benefits. Demographic shifts — longer lifespans, lower birth rates, retiring boomers — mean the system is paying out more than it takes in. The Old-Age and Survivors Insurance trust fund is projected to be depleted in the mid-2030s; absent action, scheduled benefits would be reduced by roughly 20%.
Reform proposals fall into broad categories:
- Revenue increases: Raise or eliminate the payroll-tax cap (currently ~$168K), raise the rate, or apply payroll tax to investment income.
- Benefit changes: Raise the retirement age, change the cost-of-living adjustment formula, means-test high-income retiree benefits.
- Investment: Allow some trust-fund investment in equities, or partial private accounts.
Polling shows broad opposition to benefit cuts and broad support for raising the cap on high earners.