> ## Documentation Index
> Fetch the complete documentation index at: https://developer.jtl-software.com/llms.txt
> Use this file to discover all available pages before exploring further.

# UpdateTaxCode

> Updates an existing tax code.

If a request with this mutation's Idempotency-Key was already completed, the response's `extensions` contains an `idempotency.{responseName}` entry with `wasReplayed: true`.



**mutation** `UpdateTaxCode(request: UpdateTaxCodeCommandRequestInput!): Boolean!`

## Arguments

**`request`**: `UpdateTaxCodeCommandRequestInput!` (required)

## Returns

`Boolean!`