设置 Shopify POS 的税率
Shopify POS 应用根据您分配给 POS 设备的商店地点应用税费。商店地点必须包括在配送区域中，以便正确计算税费。
配置税费设置后，您可以在 Shopify POS 购物车中调整在交易期间应用于单个订单或产品的税金。
设置新 POS 地点的税率
Shopify POS 应用根据您分配给 POS 设备的商店地点应用税费。
步骤：
确保新地点包含在您的配送区域中，以便正确计算税费。即使您从未为您的产品发货（例如，如果您只运营 Shopify POS），也需要执行此步骤。
备注：您为可发货区域设置的任何优惠或免税均适用于该区域内的 Shopify POS 地点。
在 Shopify 后台中，转到设置 > 税费和关税。
在税率部分中，点击征税区域并设置税率，然后点击保存：
添加您的新商店地点。
将 Shopify POS 设备分配到新的地点。如果未显示新的地点，请按设备的主屏幕按钮将应用调整至后台运行。再次打开 Shopify POS 应用，应该就能看到您的新地点了。
Shopify商户官网原文详情：
Setting up tax rates for Shopify POS
The Shopify POS app applies taxes based on the store location that you assign to your POS device. Store locations must be included in your shipping zones for taxes to be calculated correctly.
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 a new POS location
The Shopify POS app applies taxes based on the store location that you assign to your POS device.
Steps:
Make sure that the new location is included in your shipping zones 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).
From your Shopify admin, go to Settings > Taxes and duties.
In the Tax rates section, click the tax region and set the tax rate, then click Save:
If you're in the United States, choose automatic tax settings or manually specify the rates for state, county, and municipal taxes, including shipping taxes.
If you're not in the United States, use the default values or specify the rates for countries and their regions. You also specify whether you will charge taxes on shipping.
Add your new store location.
Assign your Shopify POS device to the new location. If the 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.
文章内容来源：Shopify商户官方网站
