---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/18058#article
headline: "18058: Missing Tax ID"
url: https://www.twilio.com/docs/api/errors/18058
inLanguage: en
dateModified: 2026-06-08T11:29:20.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 18058: Missing Tax ID

Log Type: APPLICATION

Log Level: ERROR

## Description

This error indicates that your Phone Numbers regulatory bundle is missing the Authorized Representative's personal Tax ID in the Business & Legal Representative Information section. Twilio cannot approve the bundle until you provide the required value.

### Possible causes

* The `Tax ID Number` field for the Authorized Representative was left blank.
* The bundle was submitted before all required Business & Legal Representative Information was completed.
* A company VAT number or business registration number was entered where the Authorized Representative's personal Tax ID is required.
* The regulation for the selected country and number type requires the Authorized Representative's fiscal code or equivalent Tax ID, but that value was not provided.

### Possible solutions

* Open the Regulatory Bundle in Console and add the Authorized Representative's personal Tax ID to the `Tax ID Number` field in Business & Legal Representative Information.
* If the regulation also requires a company VAT or business registration number, enter that value in the `VAT` field and keep the Authorized Representative's personal Tax ID in `Tax ID Number`.
* Review the regulatory requirements for the country and number type in your bundle, then make sure all required representative details are filled in exactly as needed.
* Resubmit the bundle after you update the missing field.
* If you use the Regulatory Compliance API, run a bundle evaluation after updating the data so you can confirm the bundle is compliant before review.

#### Additional resources

* [Getting Started: Phone Number Regulatory Compliance](/docs/phone-numbers/regulatory/getting-started)
* [Evaluations Resource](/docs/phone-numbers/regulatory/api/evaluations)
* [Understanding Regulatory Bundle Rejections](https://help.twilio.com/articles/16066152436507)