Work out social security tax instantly with clear inputs, formula shown and shareable results.
Social security tax applies only up to an annual wage base, matched by the employer. Once wages exceed the base no further contribution is due, which makes the tax regressive at higher incomes.
Social security tax
Tax = min(wages, wage base) × rate, charged to both employee and employer
Tax figures are estimates based on the rates, caps and thresholds you enter. Real rules differ by jurisdiction and change every year, and personal circumstances alter the outcome. This is not tax or financial advice — confirm with a qualified adviser.
Because benefits are also capped, so contributions stop where entitlement stops accruing.
Yes, at the combined rate, though part is usually deductible against income tax.