In 2026, the Social Security wage base limit will increase to $184,500, up from $176,100 in 2025. This change means high earners will pay Social Security payroll taxes on an additional $8,400 of income. Employees contribute 6.2% on wages up to this limit, with employers matching the amount. Self-employed individuals pay both portions. While this results in higher taxes, it also potentially boosts future retirement benefits.