> ## Documentation Index
> Fetch the complete documentation index at: https://docs.commenda.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Registration Content V2

> Discover available jurisdictions, registration options, conditions, and portal requirements for V2 registrations

## Overview

The V2 Registration Content API provides a data-driven approach to creating tax registrations. Use these endpoints to discover what's available and what's required before creating a registration.

The V2 content system adds several capabilities over V1:

* **Supported regions** — Discover which regions (US, EU, Canada, UK) are available and get pre-built jurisdiction filters
* **Registration conditions** — Query prerequisite, mutual exclusivity, and member country requirements
* **Tax type details** — Get descriptions and recommendations for each tax type
* **Portal field hints** — Credential fields now include optional `helper_text` for UI display guidance

<Info>
  After gathering content information, use the [Create Registration V2](/engine/indirect-tax/registrations/v2/registrations-v2-POST) endpoint to create your registration.
</Info>

## Workflow

<Steps>
  <Step title="Search available jurisdictions">
    Use [Available Jurisdictions](/engine/indirect-tax/registrations/v2/content/available-jurisdictions-POST) to find jurisdictions where you can register. Filter by country, state, or jurisdiction type.

    ```bash theme={null}
    curl --request POST \
      --url 'https://transaction-tax.api.in.commenda.io/api/v1/registrations/v2/content/available-jurisdictions' \
      --header 'Authorization: Bearer <your_token>' \
      --header 'Content-Type: application/json' \
      --data '{"filters": {"countries": ["US"], "types": ["STATE_OR_PROVINCE"]}}'
    ```
  </Step>

  <Step title="Get registration options">
    Use [Available Registrations](/engine/indirect-tax/registrations/v2/content/available-registrations-POST) to get `registration_tax_type_id`, tax type options, and frequency options for your selected jurisdictions.

    ```bash theme={null}
    curl --request POST \
      --url 'https://transaction-tax.api.in.commenda.io/api/v1/registrations/v2/content/available-registrations' \
      --header 'Authorization: Bearer <your_token>' \
      --header 'Content-Type: application/json' \
      --data '{"jurisdiction_ids": ["JUR_US_STATE_CA"]}'
    ```
  </Step>

  <Step title="Check conditions (if applicable)">
    For trade bloc registrations (EU OSS, IOSS), use [Registration Conditions](/engine/indirect-tax/registrations/v2/content/registration-conditions-POST) to understand prerequisites and conflicts.

    ```bash theme={null}
    curl --request POST \
      --url 'https://transaction-tax.api.in.commenda.io/api/v1/registrations/v2/content/registration-conditions' \
      --header 'Authorization: Bearer <your_token>' \
      --header 'Content-Type: application/json' \
      --data '{"registration_tax_type_id": "REG_TRADEBLOC_EU_3000_UOSS_VAT"}'
    ```
  </Step>

  <Step title="Get portal requirements">
    Use [Portal Fields](/engine/indirect-tax/registrations/v2/content/portal-fields-POST) to get the credential fields needed for automated filing.

    ```bash theme={null}
    curl --request POST \
      --url 'https://transaction-tax.api.in.commenda.io/api/v1/registrations/v2/content/portal-fields' \
      --header 'Authorization: Bearer <your_token>' \
      --header 'Content-Type: application/json' \
      --data '{"portal_ids": ["PORTAL_CA_CDTFA"]}'
    ```
  </Step>

  <Step title="Create registration">
    Use [Create Registration V2](/engine/indirect-tax/registrations/v2/registrations-v2-POST) with the `registration_tax_type_id` from step 2.

    ```bash theme={null}
    curl --request POST \
      --url 'https://transaction-tax.api.in.commenda.io/api/v1/registrations/v2' \
      --header 'Authorization: Bearer <your_token>' \
      --header 'Content-Type: application/json' \
      --data '{
        "corporation_id": "your-corporation-id",
        "registration_tax_type_id": "REG_STATE_CEN_06_RST",
        "tax_types": ["RST", "DTT"],
        "frequencies": ["QUARTERLY"]
      }'
    ```
  </Step>
</Steps>

## API endpoints

| Endpoint                                                                                                                               | Description                                          |
| -------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------- |
| [`GET /registrations/v2/content/supported-regions`](/engine/indirect-tax/registrations/v2/content/supported-regions-GET)               | Get supported regions and their jurisdiction filters |
| [`POST /registrations/v2/content/available-jurisdictions`](/engine/indirect-tax/registrations/v2/content/available-jurisdictions-POST) | Search for jurisdictions where you can register      |
| [`POST /registrations/v2/content/available-registrations`](/engine/indirect-tax/registrations/v2/content/available-registrations-POST) | Get registration options for jurisdictions           |
| [`POST /registrations/v2/content/registration-conditions`](/engine/indirect-tax/registrations/v2/content/registration-conditions-POST) | Get conditions for a registration type               |
| [`POST /registrations/v2/content/portal-fields`](/engine/indirect-tax/registrations/v2/content/portal-fields-POST)                     | Get portal credential requirements                   |
| [`POST /registrations/v2/content/tax-type-details`](/engine/indirect-tax/registrations/v2/content/tax-type-details-POST)               | Get tax type descriptions                            |

## Related

* [Tax Registrations V2 Overview](/engine/indirect-tax/registrations/v2/registrations-v2) — Full V2 registration workflow and concepts
* [Create Registration V2](/engine/indirect-tax/registrations/v2/registrations-v2-POST) — Create a registration using V2 content IDs