How are the rates verified?

Every rate is checked against published government and tax-authority sources, listed by the sources endpoint, and each response carries the snapshot date so you know what the figure is based on.

What happens when a rate changes?

Known future changes are stored with their effective dates. Before the date the response shows the upcoming rate; from the date on, the new rate is returned as current with the previous rate alongside, with no redeploy in between.

Are US local sales taxes included?

The statewide base rate a seller must charge is returned for all 50 states and DC, including the mandatory statewide local component in California, Utah and Virginia. City and county surcharges vary by address and are out of scope.

Does it validate VAT numbers?

No. This API covers rates and calculations. Validating a customer's VAT registration against the EU registry is the job of the VAT Validation API, which is often used alongside it.

What does a call cost?

1 token. The free plan covers 500 rate lookups or calculations a month.

FinanceMAINTAINED1 token / call

Sales Tax & VAT API

VAT and GST rates for 52 countries, US state sales tax for all 50 states, and a calculator

VAT and GST standard and reduced rates for 52 countries, US state base sales-tax rates for all 50 states plus DC, and a calculator that splits any amount into net, tax and gross (tax-inclusive or exclusive). Every rate is verified against published government and tax-authority sources (listed in /v1/sources), and known scheduled changes are encoded with their effective dates so the API updates itself the day a rate changes — no stale snapshots.

Every call needs an X-Api-Key header. A free key includes 500 tokens a month, no card required. 1 token per call, so the free plan covers about 500 calls a month.

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response.json

{
  "query": "GET /v1/calculate?amount=100&country=DE",
  "rate": 19,
  "rate_source": "Germany VAT standard rate",
  "net": 100,
  "tax": 19,
  "gross": 119,
  "coverage": "52 countries + 50 US states & DC"
}

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Use cases for Sales Tax & VAT API

Apply the right standard or reduced rate at checkout for customers in 52 countries without maintaining a rate table.
Quote US prices with the statewide base rate for the buyer's state on invoices and estimates.
Split any amount into net, tax and gross in either direction for receipts and accounting exports.
Prepare for scheduled rate changes automatically, since upcoming rates are returned with their effective dates.

Sales Tax & VAT API endpoints

Every endpoint with its parameters and a real example response.

OpenAPI definition Postman workspace

GETCalculate Tax
GETData Sources
GETList VAT Rates
GETUS Sales Tax
GETUS Sales Tax (All States)
GETVAT By Country

GETCalculate Tax

https://api-sales-tax.dataandapis.com/v1/calculate

Query parameters

Parameter	Example
amount	100	Required
country	DE	Optional
inclusive	false	Optional
rate	8.25	Optional
state	CA	Optional

Example request

curl "https://api-sales-tax.dataandapis.com/v1/calculate?amount=100&country=DE&inclusive=false&rate=8.25&state=CA" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "as_of": "2026-09",
  "rate": 19,
  "rate_source": "Germany VAT standard rate",
  "amount_is_inclusive": false,
  "net": 100,
  "tax": 19,
  "gross": 119,
  "disclaimer": "Rates are state/country base rates as of 2026-09; local surcharges and category-specific rates may apply. Verify before relying on them for tax filings."
}

GETData Sources

https://api-sales-tax.dataandapis.com/v1/sources

This endpoint takes no parameters.

Example request

curl "https://api-sales-tax.dataandapis.com/v1/sources" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "as_of": "2026-09",
  "sources": [
    {
      "name": "VATupdate — Global VAT rates by country (mid-year 2026 update)",
      "url": "https://www.vatupdate.com/2026/07/25/global-vat-rates-by-country-2026-standard-and-reduced-rates/",
      "verified": "2026-09-11"
    },
    {
      "name": "Fiscalead — VAT rates in Europe 2026",
      "url": "https://www.fiscalead.com/en/vat-rates-in-europe-in-2026-full-review-by-country/",
      "verified": "2026-09-11"
    },
    {
      "name": "Sales Tax Institute — State sales tax rates (updated 2026-09-01)",
      "url": "https://www.salestaxinstitute.com/resources/rates",
      "verified": "2026-09-11"
    },
    {
      "name": "Tax Foundation — State and Local Sales Tax Rates, Midyear 2026",
      "url": "https://taxfoundation.org/data/all/state/2026-sales-tax-rates-midyear/",
      "verified": "2026-09-11"
    }
  ]
}

GETList VAT Rates

https://api-sales-tax.dataandapis.com/v1/vat

This endpoint takes no parameters.

Example request

curl "https://api-sales-tax.dataandapis.com/v1/vat" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "as_of": "2026-09",
  "count": 52,
  "rates": [
    {
      "country": "Austria",
      "code": "AT",
      "tax_name": "VAT",
      "standard_rate": 20,
      "reduced_rates": [
        10,
        13
      ],
      "note": "Temporary 5% rate on basic foodstuffs announced from 1 Jul 2026."
    },
    {
      "country": "Belgium",
      "code": "BE",
      "tax_name": "VAT",
      "standard_rate": 21,
      "reduced_rates": [
        6,
        12
      ]
    },
    {
      "country": "Bulgaria",
…

Show full response

{
  "ok": true,
  "as_of": "2026-09",
  "count": 52,
  "rates": [
    {
      "country": "Austria",
      "code": "AT",
      "tax_name": "VAT",
      "standard_rate": 20,
      "reduced_rates": [
        10,
        13
      ],
      "note": "Temporary 5% rate on basic foodstuffs announced from 1 Jul 2026."
    },
    {
      "country": "Belgium",
      "code": "BE",
      "tax_name": "VAT",
      "standard_rate": 21,
      "reduced_rates": [
        6,
        12
      ]
    },
    {
      "country": "Bulgaria",
      "code": "BG",
      "tax_name": "VAT",
      "standard_rate": 20,
      "reduced_rates": [
        9
      ]
    },
    "... 49 more countries omitted from this example"
  ],
  "disclaimer": "Rates are state/country base rates as of 2026-09; local surcharges and category-specific rates may apply. Verify before relying on them for tax filings."
}

GETUS Sales Tax

https://api-sales-tax.dataandapis.com/v1/sales-tax/us/{state}

Path parameters

Parameter	Example
state	CA	Required

Example request

curl "https://api-sales-tax.dataandapis.com/v1/sales-tax/us/CA" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "as_of": "2026-09",
  "state": "California",
  "code": "CA",
  "base_rate": 7.25,
  "note": "6% state rate plus the mandatory 1.25% statewide local rate.",
  "disclaimer": "Rates are state/country base rates as of 2026-09; local surcharges and category-specific rates may apply. Verify before relying on them for tax filings."
}

GETUS Sales Tax (All States)

https://api-sales-tax.dataandapis.com/v1/sales-tax/us

This endpoint takes no parameters.

Example request

curl "https://api-sales-tax.dataandapis.com/v1/sales-tax/us" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "as_of": "2026-09",
  "count": 51,
  "states": [
    {
      "state": "Alabama",
      "code": "AL",
      "base_rate": 4
    },
    {
      "state": "Alaska",
      "code": "AK",
      "base_rate": 0,
      "note": "No state sales tax; localities may levy their own."
    },
    {
      "state": "Arizona",
      "code": "AZ",
      "base_rate": 5.6
    }
  ],
  "disclaimer": "Rates are state/country base rates as of 2026-09; local surcharges and category-specific rates may apply. Verify before relying on them for tax filings."
}

GETVAT By Country

https://api-sales-tax.dataandapis.com/v1/vat/{country}

Path parameters

Parameter	Example
country	DE	Required

Example request

curl "https://api-sales-tax.dataandapis.com/v1/vat/DE" \
  -H "X-Api-Key: YOUR_API_KEY"

Example response

{
  "ok": true,
  "as_of": "2026-09",
  "country": "Germany",
  "code": "DE",
  "tax_name": "VAT",
  "standard_rate": 19,
  "reduced_rates": [
    7
  ],
  "disclaimer": "Rates are state/country base rates as of 2026-09; local surcharges and category-specific rates may apply. Verify before relying on them for tax filings."
}

Where the data comes from

Source: Published government and tax-authority rate tables, cross-checked against VATupdate, Fiscalead, the Sales Tax Institute and the Tax Foundation. Scheduled changes encoded with effective dates.
Freshness: Rates verified against the sources on the snapshot date shown in every response; scheduled changes apply themselves on their effective date.

One install. Every endpoint.

No proprietary SDKs needed. Any HTTP client works. Pick your language and paste.

3languages

6endpoints

RESTarchitecture

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import axios from 'axios';

const { data } = await axios.get(
  'https://api-sales-tax.dataandapis.com/v1/calculate',
  { headers: { 'X-Api-Key': process.env.API_KEY } }
);

Sales Tax & VAT API · X-Api-Key

Explore the endpoints

Browse request parameters and inspect live example responses.

Available Endpoints

Request Parameters

API URL

Headers

X-Api-Key

Query Parameters

amount(Required)

country(Optional)

inclusive(Optional)

rate(Optional)

state(Optional)

Target:

Client:

import axios from 'axios';

const url = 'https://api-sales-tax.dataandapis.com/v1/calculate';
const { data } = await axios.get(url, {
  headers: { 'X-Api-Key': 'YOUR_API_KEY' }
});