Sales tax and VAT, calculated automatically.
GoodVat handles sales tax, VAT, and GST for online sellers — no spreadsheets, no guesswork. Plugins for Shopify, WooCommerce, and more are on the way, built on our own address standardization, geocoding, and tax APIs — open to developers today.
- Accuracy
- 99.5%
- p99 latency
- 10ms
- Uptime SLA
- 99.99%
781 Franklin Ave Crown Heights Brooklyn NYC NY 11216 USA
Products
Building the infrastructure behind simple tax compliance
Address standardization, geocoding, and tax calculation — the building blocks GoodVat is assembling into one automatic tax engine, with ecommerce plugins on top. Each is also available on its own, today.
Address Standardization
Turn messy, free-form address strings into structured components and canonical token expansions, parsed, standardized, and ready for CRM dedup and MDM matching in 10ms.
- Accuracy
- 99.5%
- p99 latency
- 10ms
- Uptime SLA
- 99.99%
USA Geocoding
Every US address resolved to a precise rooftop coordinate and its exact tax jurisdiction — fused from open address data, OpenStreetMap, US Census geographies, and state, municipal, and special-district shape files, corrected continuously and refreshed weekly.
- Data sources fused
- 6+
- Refresh cycle
- Weekly
- Coverage
- 50 states
Global Tax Calculation
The engine behind GoodVat's upcoming Shopify, WooCommerce, and other platform plugins: sales tax, VAT, and GST calculated across 14,000+ jurisdictions in the US, Europe, UK, Australia, South America, India, the Middle East, and beyond — with registration and filing built in, not bolted on.
- Jurisdictions
- 14,000+
- Regions covered
- 7+
- Coverage
- Global
Developer experience
Integrate in minutes
One endpoint, one API key, predictable JSON. Send a messy address string, get back clean structured components you can trust.
- ✓Language & country aware — pass optional hints or let the model infer them.
- ✓Rich structured output — house, unit, road, district, city, state, and country in every response, not just the basics.
- ✓Fast enough for the hot path — a 10ms p99 you can call inline.
curl -X POST https://api.goodvat.com/v1/address/normalize \
-H "Authorization: Bearer $GOODVAT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"query": "781 Franklin Ave Crown Heights Brooklyn NYC NY 11216 USA"
}'const response = await fetch("https://api.goodvat.com/v1/address/normalize", {
method: "POST",
headers: {
"Authorization": `Bearer ${process.env.GOODVAT_API_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
query: "781 Franklin Ave Crown Heights Brooklyn NYC NY 11216 USA",
}),
});
const address = await response.json();import os
import requests
response = requests.post(
"https://api.goodvat.com/v1/address/normalize",
headers={"Authorization": f"Bearer {os.environ['GOODVAT_API_KEY']}"},
json={
"query": "781 Franklin Ave Crown Heights Brooklyn NYC NY 11216 USA",
},
)
address = response.json(){
"houseNumber": "781",
"road": "Franklin Avenue",
"suburb": "Crown Heights",
"cityDistrict": "Brooklyn",
"state": "NY",
"postcode": "11216",
"country": "USA",
"expansions": [
"781 franklin avenue crown heights brooklyn ny 11216 usa",
"781 franklin avenue crown heights brooklyn new york 11216 usa"
]
}Why GoodVat
Infrastructure you can build a business on
Built for the hot path
A 10ms p99 means you can call GoodVat inline on every checkout, signup, and bulk import without adding perceptible latency.
Built on real infrastructure
The same address, geocoding, and tax APIs that power the upcoming Shopify and WooCommerce plugins are open to developers today — clean REST endpoints, predictable JSON, one API key.
Serious about uptime
A 99.99% uptime SLA on a stateless, horizontally-scaled service. When your revenue depends on it, so does ours.
Honest, flat pricing
No per-request metering games or enterprise-only gates. One clear price per product, so your bill never surprises you.
Learn
Docs, guides, and the open tax encyclopedia
GoodVat started as a free, open reference for online sellers. It’s still here — now alongside the APIs that automate it.
Start with what’s live today
Get an API key and make your first standardized address in minutes. $5 a month, unlimited requests, no card games.
