Social Security Wage Base

The Social Security wage base, sometimes called the maximum taxable earnings or the Social Security cap, sets the ceiling on income that the 6.2 percent Social Security tax applies to. For 2026 the wage base is $184,500. If you earn that or less, all of your wages are taxed for Social Security; if you earn more, only the first $184,500 is, and the rest is exempt from this particular tax. The most Social Security tax an employee pays in 2026 is therefore 6.2 percent of $184,500.

The Social Security Administration raises the wage base in most years to track average wage growth, so the figure climbs over time. Because this number changes annually, the paycheck calculator and the federal income tax calculator apply the current cap for you, so a reader in a later year can pull the live figure there. Our paycheck playbook explains how the cap shapes take-home pay for higher earners.