Skip to main content
POST
/
api
/
v1
/
registrations
/
v2
/
content
/
available-registrations
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"]
  }'

{
  "data": {
    "registrations": [
      {
        "registration_id": "REG_STATE_CEN_06",
        "jurisdiction_id": "JUR_US_STATE_CA",
        "jurisdiction_name": "California",
        "jurisdiction_type": "STATE_OR_PROVINCE",
        "registration_name": "Sales and Use Tax",
        "tax_type_options": [
          {
            "registration_tax_type_id": "REG_STATE_CEN_06_RST",
            "tax_types": {
              "primary": "RST",
              "related": [
                { "value": "DTT", "optional": false }
              ]
            },
            "is_default": true,
            "effective_start_date": "2024-01-01",
            "portal_ids": ["PORTAL_CA_CDTFA"],
            "frequencies": [
              {
                "primary": "MONTHLY",
                "related": []
              },
              {
                "primary": "QUARTERLY",
                "related": []
              },
              {
                "primary": "ANNUAL_CALENDAR_YEAR",
                "related": []
              }
            ]
          }
        ]
      }
    ]
  }
}

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.

Retrieve the available registration options for one or more jurisdictions. Returns structured registration data including registration_tax_type_id, parsed composite tax types, parsed composite frequencies, and associated portal IDs.

​
Request body

​
jurisdiction_ids
array
required
Array of jurisdiction IDs to get registration options for. Get these from the Available Jurisdictions endpoint.Minimum 1, maximum 100 items.Example: ["JUR_US_STATE_CA", "JUR_US_STATE_TX"]

​
Response structure

Each jurisdiction returns one or more registration objects. Each registration includes:
  • registration_tax_type_id — The content ID to use when creating a registration
  • tax_type_options — Available tax type combinations with parsed composite structure
  • frequencies — Available filing frequency combinations with parsed composite structure
  • portal_ids — Portal IDs for credential lookup

​
Composite tax types

Tax types are returned as structured objects instead of raw strings: 
{
  "primary": "RST",
  "related": [
    { "value": "DTT", "optional": false }
  ]
}
  • optional: false — This related type must be included when creating the registration
  • optional: true — This related type may be included at your discretion

​
Composite frequencies

Frequencies follow the same structure: 
{
  "primary": "QUARTERLY",
  "related": [
    { "value": "ANNUAL_RECONCILIATION", "optional": false }
  ]
}

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"]
  }'

{
  "data": {
    "registrations": [
      {
        "registration_id": "REG_STATE_CEN_06",
        "jurisdiction_id": "JUR_US_STATE_CA",
        "jurisdiction_name": "California",
        "jurisdiction_type": "STATE_OR_PROVINCE",
        "registration_name": "Sales and Use Tax",
        "tax_type_options": [
          {
            "registration_tax_type_id": "REG_STATE_CEN_06_RST",
            "tax_types": {
              "primary": "RST",
              "related": [
                { "value": "DTT", "optional": false }
              ]
            },
            "is_default": true,
            "effective_start_date": "2024-01-01",
            "portal_ids": ["PORTAL_CA_CDTFA"],
            "frequencies": [
              {
                "primary": "MONTHLY",
                "related": []
              },
              {
                "primary": "QUARTERLY",
                "related": []
              },
              {
                "primary": "ANNUAL_CALENDAR_YEAR",
                "related": []
              }
            ]
          }
        ]
      }
    ]
  }
}

​
Using the response

From the response, extract:
  1. registration_tax_type_id — Use this when calling POST /registrations/v2
  2. tax_types — Combine primary and required related types into the tax_types array
  3. frequencies — Pick one frequency option and pass all its components in the frequencies array
  4. portal_ids — Use with the Portal Fields endpoint to get credential requirements

​
Example: creating a California registration

From the response above, California requires RST + DTT (DTT is not optional): 
{
  "corporation_id": "your-corporation-id",
  "registration_tax_type_id": "REG_STATE_CEN_06_RST",
  "tax_types": ["RST", "DTT"],
  "frequencies": ["QUARTERLY"]
}