{
  "$comment": "Machine-readable companion to https://valem.run/calculators/ireland/self-employed. Formula, inputs, outputs, engine-verified test vectors, cited sources and the re-runnable Valem ModelSpec behind the page.",
  "url": "https://valem.run/calculators/ireland/self-employed",
  "dataUrl": "https://valem.run/calculators/ireland/self-employed.json",
  "license": {
    "name": "CC BY 4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/",
    "attribution": "Ireland sole trader model by Valem (https://valem.run/calculators/ireland/self-employed), CC BY 4.0.",
    "note": "Covers the model — the expression of each rule and the arrangement of the catalog. The rates and thresholds themselves are law and are not licensed by anyone; the cited sources are where they come from."
  },
  "verificationUrl": "https://valem.run/calculators/ireland/self-employed/verify",
  "country": "ireland",
  "countryName": "Ireland",
  "formula": "self-employed",
  "formulaName": "Sole trader",
  "title": "Sole Trader Tax Calculator Ireland",
  "answer": "Your net income as an Irish sole trader is profit minus three separate charges — income tax at 20% and 40% around the 44,000 EUR standard rate band, USC on its own bands, and Class S PRSI at 4.2375% with a 650 EUR minimum.",
  "lang": "en",
  "currency": "EUR",
  "taxYear": "2026",
  "verification": {
    "claim": "shape-only",
    "statement": "The rates in this model are illustrative. Its 3 self-test cases confirm the engine reproduces the shape of the charge, but the schedule is not the official one, so the amount will not match a real bill. The cited sources name the document that would replace it.",
    "selfTestCases": 3,
    "ratesAreIllustrative": true,
    "sourcesCheckedOn": "2026-08-22"
  },
  "sources": [
    {
      "label": "Revenue — Universal Social Charge (USC) rates and PRSI for the self-employed",
      "url": "https://www.revenue.ie/en/jobs-and-pensions/usc/index.aspx",
      "checked": "2026-08-22"
    },
    {
      "label": "Budget 2026 Ireland — tax rates, bands, USC and PRSI",
      "url": "https://kpmg.com/ie/en/insights/tax/budget-2026/tables.html",
      "checked": "2026-08-22"
    }
  ],
  "terminalOutput": "netIncome",
  "inputs": [
    {
      "name": "annualProfit",
      "type": "number",
      "label": "Annual profit after expenses (EUR)",
      "minimum": 0
    }
  ],
  "outputs": [
    {
      "name": "incomeTax",
      "type": "number",
      "label": "Income tax (after credits)",
      "format": "number",
      "formula": "($p := annualProfit; $round($max([0, $const.lowRate * $min([$p, $const.standardBand]) + $const.highRate * $max([0, $p - $const.standardBand]) - $const.taxCredits]), 2))"
    },
    {
      "name": "usc",
      "type": "number",
      "label": "USC",
      "format": "number",
      "formula": "($p := annualProfit; $round($p <= $const.uscExemption ? 0 : $const.uscR1 * $min([$p, $const.uscB1]) + $const.uscR2 * $max([0, $min([$p, $const.uscB2]) - $const.uscB1]) + $const.uscR3 * $max([0, $min([$p, $const.uscB3]) - $const.uscB2]) + $const.uscR4 * $max([0, $p - $const.uscB3]), 2))"
    },
    {
      "name": "prsi",
      "type": "number",
      "label": "Class S PRSI",
      "format": "number",
      "formula": "$round(annualProfit < $const.prsiFloor ? 0 : $max([$const.prsiMinimum, annualProfit * $const.prsiRate]), 2)"
    },
    {
      "name": "netIncome",
      "type": "number",
      "label": "Net income / year",
      "format": "number",
      "formula": "$round($max([0, annualProfit - incomeTax - usc - prsi]), 2)"
    }
  ],
  "testCases": [
    {
      "description": "60,000 EUR profit — a typical full-time sole trader",
      "given": {
        "annualProfit": 60000
      },
      "expect": {
        "incomeTax": 11450,
        "usc": 1332.82,
        "prsi": 2542.5,
        "netIncome": 44674.68
      }
    },
    {
      "description": "25,000 EUR — part-time, standard rate only",
      "given": {
        "annualProfit": 25000
      },
      "expect": {
        "incomeTax": 1250,
        "usc": 319.82,
        "prsi": 1059.38,
        "netIncome": 22370.8
      }
    },
    {
      "description": "120,000 EUR — into the top USC band",
      "given": {
        "annualProfit": 120000
      },
      "expect": {
        "incomeTax": 35450,
        "usc": 5630.62,
        "prsi": 5085,
        "netIncome": 73834.38
      }
    }
  ],
  "spec": {
    "id": "self-employed-ireland",
    "version": "1.0.0",
    "schema": {
      "type": "object",
      "properties": {
        "annualProfit": {
          "type": "number",
          "minimum": 0
        },
        "incomeTax": {
          "type": "number",
          "readOnly": true
        },
        "usc": {
          "type": "number",
          "readOnly": true
        },
        "prsi": {
          "type": "number",
          "readOnly": true
        },
        "netIncome": {
          "type": "number",
          "readOnly": true
        }
      },
      "required": [
        "annualProfit"
      ]
    },
    "constants": {
      "standardBand": 44000,
      "lowRate": 0.2,
      "highRate": 0.4,
      "taxCredits": 3750,
      "uscB1": 12012,
      "uscB2": 28700,
      "uscB3": 70044,
      "uscR1": 0.005,
      "uscR2": 0.02,
      "uscR3": 0.03,
      "uscR4": 0.08,
      "uscExemption": 13000,
      "prsiRate": 0.042375,
      "prsiMinimum": 650,
      "prsiFloor": 5000
    },
    "defaultValues": [
      {
        "path": "$",
        "expr": "{ \"annualProfit\": 60000 }"
      }
    ],
    "derivations": [
      {
        "path": "$.incomeTax",
        "expr": "($p := annualProfit; $round($max([0, $const.lowRate * $min([$p, $const.standardBand]) + $const.highRate * $max([0, $p - $const.standardBand]) - $const.taxCredits]), 2))"
      },
      {
        "path": "$.usc",
        "expr": "($p := annualProfit; $round($p <= $const.uscExemption ? 0 : $const.uscR1 * $min([$p, $const.uscB1]) + $const.uscR2 * $max([0, $min([$p, $const.uscB2]) - $const.uscB1]) + $const.uscR3 * $max([0, $min([$p, $const.uscB3]) - $const.uscB2]) + $const.uscR4 * $max([0, $p - $const.uscB3]), 2))"
      },
      {
        "path": "$.prsi",
        "expr": "$round(annualProfit < $const.prsiFloor ? 0 : $max([$const.prsiMinimum, annualProfit * $const.prsiRate]), 2)"
      },
      {
        "path": "$.netIncome",
        "expr": "$round($max([0, annualProfit - incomeTax - usc - prsi]), 2)"
      }
    ],
    "constraints": [],
    "viewDefinition": {
      "renderer": "builtin",
      "defaultView": "main",
      "views": [
        {
          "id": "main",
          "label": "Self-employed net income",
          "layout": "vertical",
          "components": [
            {
              "id": "illustrativeNotice",
              "type": "alert",
              "variant": "warning",
              "label": "What this model leaves out",
              "text": "'Three separate charges on the same profit, each with its own bands, is what makes Irish self-employment hard to estimate — and all three are modelled: income tax with the personal and earned income credits (1,875 EUR each), USC on its own four bands with the exemption below 13,000 EUR, and Class S PRSI with its 650 EUR statutory minimum. Assumes a single person with no other income and no further credits or reliefs; pension contributions, which are deductible against income tax but not USC, are not modelled. Not tax advice.'"
            },
            {
              "id": "inputField",
              "type": "numericField",
              "label": "Annual profit after expenses (EUR)",
              "bind": "$.annualProfit",
              "placeholder": "60000"
            },
            {
              "id": "tiles",
              "type": "group",
              "layout": "horizontal",
              "components": [
                {
                  "id": "netIncomeTile",
                  "type": "statTile",
                  "label": "Net income / year",
                  "bind": "$.netIncome",
                  "format": "number"
                },
                {
                  "id": "incomeTaxTile",
                  "type": "statTile",
                  "label": "Income tax (after credits)",
                  "bind": "$.incomeTax",
                  "format": "number"
                },
                {
                  "id": "uscTile",
                  "type": "statTile",
                  "label": "USC",
                  "bind": "$.usc",
                  "format": "number"
                },
                {
                  "id": "prsiTile",
                  "type": "statTile",
                  "label": "Class S PRSI",
                  "bind": "$.prsi",
                  "format": "number"
                }
              ]
            },
            {
              "id": "sources",
              "type": "sourceList",
              "label": "Sources",
              "items": [
                {
                  "label": "Revenue — Universal Social Charge (USC) rates and PRSI for the self-employed",
                  "url": "https://www.revenue.ie/en/jobs-and-pensions/usc/index.aspx",
                  "date": "2026-08-22"
                },
                {
                  "label": "Budget 2026 Ireland — tax rates, bands, USC and PRSI",
                  "url": "https://kpmg.com/ie/en/insights/tax/budget-2026/tables.html",
                  "date": "2026-08-22"
                }
              ]
            }
          ]
        }
      ]
    },
    "tests": [
      {
        "description": "60,000 EUR profit — a typical full-time sole trader",
        "given": {
          "$.annualProfit": 60000
        },
        "expect": {
          "$.incomeTax": 11450,
          "$.usc": 1332.82,
          "$.prsi": 2542.5,
          "$.netIncome": 44674.68
        }
      },
      {
        "description": "25,000 EUR — part-time, standard rate only",
        "given": {
          "$.annualProfit": 25000
        },
        "expect": {
          "$.incomeTax": 1250,
          "$.usc": 319.82,
          "$.prsi": 1059.38,
          "$.netIncome": 22370.8
        }
      },
      {
        "description": "120,000 EUR — into the top USC band",
        "given": {
          "$.annualProfit": 120000
        },
        "expect": {
          "$.incomeTax": 35450,
          "$.usc": 5630.62,
          "$.prsi": 5085,
          "$.netIncome": 73834.38
        }
      }
    ]
  }
}