---
title: "Dutch Holiday Allowance Calculator"
method: POST
path: "/api/v1/tools/dutch-holiday-allowance-calculator"
tags: ["tools"]
---

# Dutch Holiday Allowance Calculator

`POST /api/v1/tools/dutch-holiday-allowance-calculator`

## Request

- Base URL: `https://toolforte.com`
- URL: `https://toolforte.com/api/v1/tools/dutch-holiday-allowance-calculator`
- Auth: HTTP bearer

Calculate Dutch holiday allowance (vakantiegeld) from a gross monthly salary and the months worked: the gross amount at the given percentage (statutory minimum 8%) and an estimate of the net payout after the special payroll tax rate (bijzonder tarief).

## Request body

- object
  - `monthlySalary` integer
  - `monthsWorked` integer
  - `allowancePercent` integer
  - `specialRatePercent` number

## Response `200`

Successful result

- object
  - `ok` boolean
  - `data` object
    - `ok` boolean
    - `grossAllowance` integer
    - `taxWithheld` number
    - `netAllowance` number
    - `allowancePercent` integer
    - `specialRatePercent` number
    - `note` string

## Other responses

- `400`: Missing or invalid request fields
- `401`: Invalid or missing API key
- `429`: Monthly plan limit reached

---

[API](https://skmtc.dev/toolforte/apis/toolforte-api.md) · [All operations](https://skmtc.dev/toolforte/apis/toolforte-api/llms.txt) · [OpenAPI document](https://skmtc.dev/toolforte/apis/toolforte-api/revisions/4d814d484dfc?raw)