Payroll (FICA) tax — employee & employer API

Estimate FICA payroll tax: Social Security 6.2% to the 2024 wage base ($168,600) + Medicare 1.45% + 0.9% additional Medicare over the filing-status threshold, for both employee and employer, returning each component and total. Estimate only. Answers 'how much FICA on $250k wages','employer payroll tax','additional Medicare surtax','Social Security wage cap'.

Price$0.01per request

MethodPOST

Route/v1/calc/tax-payroll

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

taxpayrollficasocial-securitymedicarewagesuscalc

API URLhttps://x402.hexl.dev/v1/calc/tax-payroll

Integration docs

Example request

{
  "wages": 250000,
  "filingStatus": "single"
}

Example response

{
  "year": 2024,
  "filingStatus": "single",
  "wages": 250000,
  "employee": {
    "socialSecurity": 10453.2,
    "medicare": 3625,
    "additionalMedicare": 450,
    "total": 14528.2
  },
  "employer": {
    "socialSecurity": 10453.2,
    "medicare": 3625,
    "total": 14078.2
  },
  "totalFica": 28606.4,
  "employeeEffectiveRate": 0.0581,
  "note": "Estimate. FICA: employee 6.2% SS (cap $168,600) + 1.45% Medicare + 0.9% additional Medicare over threshold."
}

Input schema

{
  "type": "object",
  "required": [
    "wages"
  ],
  "properties": {
    "wages": {
      "type": "number",
      "description": "Gross wages in USD",
      "examples": [
        250000
      ]
    },
    "filingStatus": {
      "type": "string",
      "enum": [
        "single",
        "married",
        "head"
      ],
      "examples": [
        "single"
      ]
    },
    "year": {
      "type": "number",
      "examples": [
        2024
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}