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Tax Rate Estimates

Tax Rate Estimates

Country-scoped tax-rate estimate lookups. Estimates are helper data only and do not replace merchant tax compliance review.

List US tax rate estimates

GET/tax-rate-estimates/us

Returns the latest imported ZIP-level US tax-rate estimates for the active US entity. Results are informational helper data only; the API does not calculate document tax automatically.

Header parameters

entity_idstringoptional

Entity ID on which the request is made. Auto-selected when only one entity exists, required when multiple entities exist.

Query parameters

zip_codestringrequired

US ZIP code to look up.

statestringoptional

Optional two-letter US state filter.

curl "https://eu.spaceinvoices.com/tax-rate-estimates/us?zip_code=2026-01-01" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "x-entity-id: YOUR_ENTITY_ID"

Returns

dataarray of objects
json
{
  "data": [
    {
      "id": "tre_123",
      "country_code": "US",
      "state": "CA",
      "zip_code": "90210",
      "tax_region_name": "Beverly Hills",
      "estimated_combined_rate": 0.095,
      "state_rate": 0.06,
      "county_rate": 0.01,
      "city_rate": 0.015,
      "special_rate": 0.01,
      "risk_level": 1,
      "source": "avalara_zip5",
      "source_month": "2026-05",
      "imported_at": "2026-05-01T00:00:00.000Z"
    }
  ]
}
Example: