Tax Policy (United States Only)
🗓️ Last updated: November 16, 2025
This Tax Policy explains how sales tax is handled for purchases made on Innofiz when the shipping address is located within the United States. It describes when and how sales tax is collected, how it appears at checkout, and what to do for tax-related questions or refunds.
1️⃣ When we collect sales tax
We collect sales tax on orders shipped to addresses in U.S. states where Innofiz has a sales tax obligation ("nexus"). Nexus may be created by: having a physical presence, a third-party warehouse, a marketplace facilitator requirement, or other activities as defined by state law.
If your shipping address is in a state where sales tax applies, the appropriate state and local sales tax will be calculated and added to your order at checkout.
2️⃣ How sales tax is calculated
Sales tax is calculated based on the shipping address and applicable state and local tax rates at the time of purchase.
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The tax amount is displayed separately in your shopping cart and on the checkout page before you complete payment.
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Product prices displayed on our site do not include sales tax; tax is shown during checkout.
3️⃣ Marketplace facilitator and third-party sellers
If you purchase items fulfilled by a third-party seller or a marketplace facilitator, the marketplace may be responsible for collecting and remitting sales tax for that transaction. In such cases, sales tax will still appear at checkout, and the tax collection is handled according to the marketplace’s policy.
4️⃣ Exemptions and resale certificates
If you are exempt from sales tax (for example, a resale certificate or other valid exemption), you must provide a valid exemption certificate to Innofiz prior to purchase.
Exemption certificates are reviewed and accepted at our discretion and in accordance with state regulations.
📧 To submit an exemption certificate, email: info@innofiz.com with a scanned copy of your certificate and your order details.
5️⃣ Sales tax refunds and returns
If you return an item and receive a refund, the portion of the sales tax attributable to the returned merchandise will be refunded in accordance with applicable state law once the return is processed and approved.
Refunds will be issued to the original payment method or as store credit, depending on the situation and state rules.
6️⃣ Out-of-state orders and use tax
If you live in a state where sales tax was not collected on your order, you may still be responsible for paying use tax directly to your state tax authority. This policy does not remove your obligation to comply with local and state tax laws.
7️⃣ Order invoices and tax documentation
An itemized invoice showing the sales tax charged is included with your order confirmation email and is available in your account order history.
If you need additional tax documentation for accounting or tax filings, contact info@innofiz.com and include your order number and specific request.
8️⃣ Changes to this policy
Innofiz may update this Tax Policy to reflect changes in tax laws or business practices. When we make changes, we will revise the "Last updated" date at the top of this page. Significant changes may be communicated via email.
9️⃣ Contact us
For any questions about sales tax on your order, exemptions, or documentation:
📧 Email: info@innofiz.com
📞 Customer Support: +1 4243948799
🏢 Address: 865 Market St, San Francisco, CA 94103, United States