---
title: "Validate Tax Id"
method: POST
path: "/v0/billing/validate-tax-id"
tags: ["Billing"]
---

# Validate Tax Id

`POST /v0/billing/validate-tax-id`

Validate a tax ID format for a specific country.

## Request body

- TaxIdValidationRequest — Request body for ``POST /billing/validate-tax-id``.
  - `tax_id` string, required — Tax ID to validate
  - `country` string, required — Two-letter country code

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/unify/apis/unifyai-http-api-reference.md) · [All operations](https://skmtc.net/unify/apis/unifyai-http-api-reference/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/unify/unifyai-http-api-reference/revisions/900377f918b6/schema)