Effective tax-burden score (0-100) API

Score total tax burden 0-100 with a TRANSPARENT weighted rubric over three normalized factors — effective income rate (ceiling 0.50, weight 0.50), payroll rate (ceiling 0.15, weight 0.20), and sales/VAT rate (ceiling 0.25, weight 0.30) — returning the score, a low/moderate/high/very-high rating, and a per-factor contribution breakdown so the score is auditable. Answers 'how heavy is my total tax burden','blended tax burden score','rate my overall tax load','income vs payroll vs sales tax weight'.

Price$0.01per request

MethodPOST

Route/v1/calc/tax-burden-score

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

taxburden-scorerubriceffective-ratepayrollsales-taxscorecalc

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

Integration docs

Example request

{
  "effectiveIncomeRate": 0.22,
  "payrollRate": 0.0765,
  "salesVatRate": 0.08
}

Example response

{
  "score": 41.8,
  "rating": "moderate",
  "maxScore": 100,
  "breakdown": [
    {
      "factor": "effectiveIncomeRate",
      "value": 0.22,
      "normalized": 0.44,
      "weight": 0.5,
      "contribution": 22
    },
    {
      "factor": "payrollRate",
      "value": 0.0765,
      "normalized": 0.51,
      "weight": 0.2,
      "contribution": 10.2
    },
    {
      "factor": "salesVatRate",
      "value": 0.08,
      "normalized": 0.32,
      "weight": 0.3,
      "contribution": 9.6
    }
  ],
  "interpretation": "A total tax burden of 41.8/100 is rated 'moderate'.",
  "note": "Auditable rubric. Weights: income 0.50, payroll 0.20, sales/VAT 0.30; each factor normalized to its stated ceiling. Estimate, not advice."
}

Input schema

{
  "type": "object",
  "required": [
    "effectiveIncomeRate"
  ],
  "properties": {
    "effectiveIncomeRate": {
      "type": "number",
      "description": "Effective income tax rate as a decimal, e.g. 0.22",
      "examples": [
        0.22
      ]
    },
    "payrollRate": {
      "type": "number",
      "description": "Payroll tax rate as a decimal, e.g. 0.0765",
      "examples": [
        0.0765
      ]
    },
    "salesVatRate": {
      "type": "number",
      "description": "Sales/VAT rate as a decimal, e.g. 0.08",
      "examples": [
        0.08
      ]
    }
  }
}

Output schema

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