# Calculate New Zealand GST

Add or remove GST from a straightforward New Zealand taxable-supply amount and show the calculation.

Canonical: https://aroai.com/tools/nz_gst/

## Tool reference

MCP tool ID: `nz_gst`. Availability: Live. Country: New Zealand.

Credit use: 1 credit.

## Input schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "tax_year": {
      "type": "string",
      "enum": [
        "2025-26",
        "2026-27"
      ]
    },
    "amount": {
      "type": "number",
      "minimum": 0,
      "maximum": 100000000
    },
    "gst_inclusive": {
      "type": "boolean"
    }
  },
  "required": [
    "tax_year",
    "amount",
    "gst_inclusive"
  ],
  "additionalProperties": false
}
```