Developers
API referenceReferenceBusinesses

Constants - VAT rates by date

Retrieve VAT rate configuration effective for a specific date in the selected business country configuration.

GET
/v1/business/{business_slug}/constants/vat_rates/

Path Parameters

business_slug*string

Business slug that scopes this request. If you do not have one yet, call common_accessible_businesses_list and pick a slug from the response.

Query Parameters

date_at*string

Effective date for VAT rate lookup, format YYYY-MM-DD (for example 2026-01-31).

Formatdate

Response Body

application/json

curl -X GET "https://example.com/v1/business/string/constants/vat_rates/?date_at=2019-08-24"
{  "effective_from": "2019-08-24",  "default_vat_rate_label": "string",  "default_vat_rate": "string",  "vat_rate_options": [    {      "label": "string",      "rate": "string"    }  ]}

Constants - VAT codes GET

Retrieve VAT codes available for the selected business country configuration.

Business identifiers - List GET

List or upsert business identifiers for the selected business. Identifier `type` uses enum `y_tunnus`, `vat_code`, or `steuernummer`.