Section 199A QBI deduction API

Estimate the Section 199A qualified business income deduction = lesser of 20% of QBI or 20% of (taxable income - net capital gains), returning both limits, the deduction, and which limit bound it. Estimate only; excludes SSTB phase-out and W-2/UBIA limits. Answers 'how much QBI deduction','Section 199A pass-through deduction','20% QBI vs taxable-income limit','small business tax deduction'.

Price$0.01per request

MethodPOST

Route/v1/calc/tax-qbi-deduction

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

taxqbisection-199apass-throughdeductionsmall-businessuscalc

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

Integration docs

Example request

{
  "qbi": 100000,
  "taxableIncome": 150000
}

Example response

{
  "qbi": 100000,
  "taxableIncome": 150000,
  "netCapitalGains": 0,
  "twentyPercentOfQbi": 20000,
  "twentyPercentOfTaxableMinusCg": 30000,
  "qbiDeduction": 20000,
  "limitedBy": "20% of QBI",
  "note": "Estimate. Section 199A: lesser of 20% of QBI or 20% of (taxable income - net capital gains); excludes SSTB phase-out and W-2/UBIA limits."
}

Input schema

{
  "type": "object",
  "required": [
    "qbi",
    "taxableIncome"
  ],
  "properties": {
    "qbi": {
      "type": "number",
      "description": "Qualified business income in USD",
      "examples": [
        100000
      ]
    },
    "taxableIncome": {
      "type": "number",
      "description": "Taxable income in USD",
      "examples": [
        150000
      ]
    },
    "netCapitalGains": {
      "type": "number",
      "description": "Net capital gains in USD"
    }
  }
}

Output schema

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