# Latitude/longitude support

Source: https://developer.avalara.com/ecommerce-integration-guide/transactions/certification-requirements/latitude-longitude-support/

**Element type:** Suggested

**Endpoints/models used:** [AddressesModel](https://developer.avalara.com/api-reference/avatax/rest/v2/models/AddressesModel/)

For US addresses only, if the host application captures GPS coordinates with addresses, then pass the latitude and longitude along with the address. This is especially useful in situations where a location or service site can only be pinpointed by geo-location.

You can add these values to your application using the `latitude` and `longitude` field in the [AddressesModel](https://developer.avalara.com/api-reference/avatax/rest/v2/models/AddressesModel/) at the header or line level. Refer to the earlier [Addresses in transactions](/ecommerce-integration-guide/simple-transactions/addresses-in-transactions) topic for more information.

[![Closed](https://avalara-devdocs-prod.mcoutput.com/avatax-for-ecom/Content/Skins/Default/Stylesheets/Images/transparent.gif)Example](javascript:void\(0\);)

```
{  ...,  "addresses": {    "singleLocation": {        "line1": "2000 Main Street",        "city": "Irvine",        "region": "CA",        "country": "US",        "postalCode": "92614",        "latitude": "33.684330",        "longitude": "-117.850630"    }  }}
```