Set tax rates for Shopify POS
If you're using Shopify POS for iPad or iPhone, then you can enable tax rates based on the current GPS location of your device.
After your tax settings are configured, you can adjust the taxes that are applied to individual orders or products during a transaction from the Shopify POS cart.
Set the tax rate for your location
The Shopify POS app applies taxes based on the store location that you assign to your POS device. If you're using Shopify POS away from your store location and you have local tax rates enabled, then the tax rate is based on the current GPS location of your iPad or iPhone (iOS devices only).
To set a new tax rate for your POS location:
Make sure that the new location is included in your shipping list so that taxes can be calculated correctly.
You need to do this step even if you never ship your products (for example, if you're only running Shopify POS), or if you have local tax rates enabled.
From your Shopify admin, click Settings, and then click Taxes.
Click the new tax region and set the tax rate, then click Save taxes.
Add your new location to your Locations settings.
If you're using Shopify POS, then make sure that you assign the Shopify POS device to the new location.
If your new location isn't shown, then background the app by pressing the home button on your device. Open the Shopify POS app again, and your new location should be available.
Enable local tax rates
If you enable local tax rates, then Shopify POS will retrieve the tax rate for your current location using your wi-fi connection and GPS whenever you're away from the device's assigned location. For example, if your store location is in LA but you're selling in San Francisco, then Shopify POS will charge state tax only (and not county tax) since your transaction is made outside of LA county.
To enable local tax rates:
From the Shopify POS Settings screen, tap General to view the general settings.
Under Location, tap the Automatically retrieve local tax rates toggle button:
Go to the Shopify POS app Settings screen on your iPhone.
In the Taxes section, enable the Auto-retrieve local tax rates option by tapping its toggle button:
Even with local tax rates enabled, you need to make sure that you add any location where you sell is included on your shipping list so that Shopify POS can retrieve tax rates correctly.