Skip to content
ENExplore Calculators

Social Security Tax Calculator

Work out social security tax instantly with clear inputs, formula shown and shareable results.

About Social Security Tax Calculator

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.

Formula

Social security tax

Tax = min(wages, wage base) × rate, charged to both employee and employer

Worked example

With the default values below, Social Security Tax Calculator returns Employee Contribution of $9,300.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Annual Wagesminimum 0
150,000
Employee Rateaccepts 0–15 %
6.2 %
Taxable Wage Baseminimum 0
168,600

Results

Employee Contribution
$9,300.00
Employer Contribution
$9,300.00
Combined Contribution
$18,600.00
Wages Above The Taxable Base
$0.00

Step by step

  1. 1Values used
  2. 2Social security tax
  3. 3Employee Contribution= 9,300.00
  4. 4Employer Contribution= 9,300.00
  5. 5Combined Contribution= 18,600.00
  6. 6Wages Above The Taxable Base= 0.00

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation or fees or charges into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • 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.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

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.

Frequently Asked Questions

Why is there a wage cap?

Because benefits are also capped, so contributions stop where entitlement stops accruing.

Do the self-employed pay both halves?

Yes, at the combined rate, though part is usually deductible against income tax.

Related Calculators

Social Security Tax Calculator | Calcrivo