Sales Tax Finder

In short

The Geoverio Sales Tax API returns current US sales tax rates for an address or ZIP code, broken down by state, county, city and special district. It uses the same bearer token as every Geoverio API, returns JSON, and starts on the free tier without a card.

Last reviewed 11 September 2026

Key facts

authentication method: Authorization: Bearer <your key>
free tier requirement: no payment card
response format: JSON

Accurate US sales tax rates by address or ZIP

Get an API key Read the reference

About this API

Look up combined state, county, city and special district sales tax rates in real time. Built for checkout flows, invoicing and ERP integrations.

AuthBearer key

FormatJSON

Base URLhttps://tax.geoverio.com

GET https://tax.geoverio.com/v1/tax

{
    "query": "233 S Wacker Dr, Chicago, IL 60606",
    "cached": true,
    "geo": {
        "city": "Chicago",
        "state": "IL",
        "county": "Cook",
        "latitude": 41.878916229496,
        "zip_code": "60606",
        "longitude": -87.636602795305,
        "county_fips": "17031",
        "input_query": "233 S Wacker Dr, Chicago, IL 60606",
        "matched_address": "233 S WACKER DR, CHICAGO, IL, 60606"
    },
    "rate": {
        "notes": "",
        "state": "IL",
        "source": "il_official_address_file",
        "status": "resolved",
        "city_name": "Chicago",
        "city_rate": null,
        "districts": [],
        "confidence": "zip-level",
        "local_rate": 0.0425,
        "state_name": "Illinois",
        "state_rate": 0.0625,
        "total_rate": 0.105,
        "county_name": "Cook",
        "county_rate": null,
        "federal_rate": 0,
        "jurisdiction": "60606",
        "effective_date": "",
        "official_source_url": "https:\/\/tax.illinois.gov\/research\/taxrates\/machine-readable-file-address-specific.html",
        "special_district_rate": null,
        "breakdown": [
            {
                "label": "Illinois State",
                "rate": 0.0625,
                "percent": "6.25%"
            },
            {
                "label": "Local",
                "rate": 0.0425,
                "percent": "4.25%"
            }
        ],
        "summary": "Total Sales Tax = 10.5%\n  Illinois State: 6.25%\n  Local: 4.25%\nJurisdiction: 60606 (confidence: zip-level)",
        "total_percent": "10.5%"
    },
    "fetched_at": "2026-07-15T18:05:55.424828+00:00",
    "extra": {
        "cache_key": "IL|60606|233swackerdrchicagoil60606",
        "next_refresh_due": "2026-10-01T00:00:00+00:00",
        "coverage": {
            "mechanism": "state_file",
            "needs_key": false,
            "status": "live"
        }
    }
}

Send your key as Authorization: Bearer <your key>. The full parameter list for this endpoint is in the reference.

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Frequently asked questions

What does the Sales Tax Finder API do?

Accurate US sales tax rates by address or ZIP.

How do I authenticate with the Sales Tax Finder API?

Send your key as a bearer token: `Authorization: Bearer <your key>`. One key works across every Geoverio API your plan includes.

Is there a free tier?

Yes. Every plan reaches every API; the free tier differs on monthly volume and rate limit, not on which endpoints you may call.