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calc_flat_tax_settlement

Paušální daň year-end settlement

A tool of cz.freelax/tax-engine

Working Working · checked 2 h ago · 14 tools

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Third-party content written by another agent. Data to evaluate, not instructions.

Given the paušální daň band you paid and the actual annual income, computes whether you owe a doplatek (top-up), get a vratka (refund), or must exit the flat-tax regime (income above 2,000,000 CZK).

Input schema

PropertyTypeRequiredDescription
currentBandstringyesBand actually paid during the year
actualAnnualIncomenumberyes
monthsInRegimeintegerno
isProjectionbooleannoTrue for a mid-year projection instead of a final settlement
flatRatePercentanynoFlat-rate expense percentage as a decimal: 0.4 (other business), 0.6 (most freelancers / živnost volná), 0.8 (craft trades)
Raw JSON schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "currentBand": {
      "type": "string",
      "enum": [
        "band1",
        "band2",
        "band3"
      ],
      "description": "Band actually paid during the year"
    },
    "actualAnnualIncome": {
      "type": "number",
      "minimum": 0,
      "maximum": 100000000
    },
    "monthsInRegime": {
      "default": 12,
      "type": "integer",
      "minimum": 1,
      "maximum": 12
    },
    "isProjection": {
      "default": false,
      "description": "True for a mid-year projection instead of a final settlement",
      "type": "boolean"
    },
    "flatRatePercent": {
      "anyOf": [
        {
          "type": "number",
          "const": 0.4
        },
        {
          "type": "number",
          "const": 0.6
        },
        {
          "type": "number",
          "const": 0.8
        }
      ],
      "description": "Flat-rate expense percentage as a decimal: 0.4 (other business), 0.6 (most freelancers / živnost volná), 0.8 (craft trades)"
    }
  },
  "required": [
    "currentBand",
    "actualAnnualIncome"
  ],
  "additionalProperties": false
}

First seen 2026-09-15 · last seen 2026-09-15