Shopify Tax is free on your first $100,000 of global sales each calendar year. After $100,000, a 0.35% calculation fee (0.25% for Shopify Plus merchants) will be charged on orders in states where tax collection is enabled*. You won't be charged more than $0.99 per order, no matter the order total, and you won't pay more than $5,000 in a calendar year per region (US/EU/UK), no matter how much you sell.
Here are some examples:
You're a merchant who sells a $30 USD t-shirt in a state where you collect sales tax. You'll be charged a calculation fee of $0.10. (If you use Shopify Plus, you'll be charged $0.08 instead of $0.10.) You're a merchant who sells a $20,000 USD rug in a state where you collect sales tax. You'll be charged a calculation fee of $0.99 because of the cap. Any fees for Shopify Tax will be reflected on your Shopify subscription invoice. *Fee is calculated based on the total transaction amount, including taxes and shipping.
This pricing applies to stores that make $100,000,000 USD or less in annual sales, or the equivalent in your local currency. If your sales are above $100,000,000 USD annually, or the equivalent in your local currency, then contact your Merchant Success Manager (MSM) for pricing.