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Payroll and tax · New Zealand

Estimate New Zealand payroll deductions

Estimate income tax, ACC, KiwiSaver, student-loan deductions and take-home pay for straightforward New Zealand salary cases. Scope and exclusions are shown with each result.

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Tool ID

nz_payroll_deductions

Estimate income tax, ACC, KiwiSaver, student-loan deductions and take-home pay for straightforward New Zealand salary cases. Scope and exclusions are shown with each result.

LiveNew ZealandPayroll and tax1 credit
ServerNew Zealand
Information categoryPayroll calculations
Credit behavior1 credit
AccessWorkspace permissions

Inputs and outputs

Published input schema

Use the discovered runtime schema for the workspace you are connected to.

Public catalog
nz_payroll_deductions input schema
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "tax_year": {
      "type": "string",
      "enum": [
        "2025-26",
        "2026-27"
      ]
    },
    "annual_gross": {
      "type": "number",
      "minimum": 0,
      "maximum": 100000000
    },
    "kiwisaver_rate": {
      "default": "none",
      "type": "string",
      "enum": [
        "3",
        "4",
        "6",
        "8",
        "10",
        "none",
        "3.5"
      ]
    },
    "student_loan": {
      "default": false,
      "type": "boolean"
    }
  },
  "required": [
    "tax_year",
    "annual_gross",
    "kiwisaver_rate",
    "student_loan"
  ],
  "additionalProperties": false
}

Published output shape

Tool results return structured data or a stable error object.

Shared Aroai tool output schema
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "anyOf": [
    {
      "type": "object",
      "properties": {
        "summary": {
          "type": "string"
        },
        "data": {
          "type": "object",
          "propertyNames": {
            "type": "string"
          },
          "additionalProperties": {}
        },
        "executionId": {
          "type": "string",
          "format": "uuid",
          "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"
        },
        "creditsCharged": {
          "type": "number",
          "minimum": 0
        },
        "usage": {
          "type": "object",
          "properties": {
            "credits_charged": {
              "type": "integer",
              "minimum": 0,
              "maximum": 9007199254740991
            },
            "credits_remaining": {
              "anyOf": [
                {
                  "type": "integer",
                  "minimum": 0,
                  "maximum": 9007199254740991
                },
                {
                  "type": "null"
                }
              ]
            }
          },
          "required": [
            "credits_charged"
          ],
          "additionalProperties": false
        }
      },
      "required": [
        "summary",
        "data",
        "creditsCharged"
      ],
      "additionalProperties": false
    },
    {
      "type": "object",
      "properties": {
        "error": {
          "type": "object",
          "properties": {
            "code": {
              "type": "string"
            },
            "message": {
              "type": "string"
            },
            "retryable": {
              "type": "boolean"
            }
          },
          "required": [
            "code",
            "message",
            "retryable"
          ],
          "additionalProperties": false
        },
        "usage": {
          "type": "object",
          "properties": {
            "credits_charged": {
              "type": "integer",
              "minimum": 0,
              "maximum": 9007199254740991
            },
            "credits_remaining": {
              "anyOf": [
                {
                  "type": "integer",
                  "minimum": 0,
                  "maximum": 9007199254740991
                },
                {
                  "type": "null"
                }
              ]
            }
          },
          "required": [
            "credits_charged"
          ],
          "additionalProperties": false
        }
      },
      "required": [
        "error"
      ],
      "additionalProperties": false
    }
  ]
}

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