US | Sales Tax FAQs
If you have questions about U.S. sales tax charges on your invoices, please read through the FAQs below. If you cannot find the information you need, please do not hesitate to contact us.
Why am I being charged sales tax?
We regularly review the services we provide alongside local tax regulations to ensure full compliance with state and local sales tax laws. Depending on your business location and the specific services you purchase, your transactions may be subject to state or municipal sales tax. We are legally obligated to collect and remit this tax to the relevant taxing jurisdictions on behalf of our customers.
What states are subject to sales tax and at what rate?
Sales tax rates vary by state, municipality, and local taxing district, and are determined by your registered business address. The table below outlines the general sales tax rate ranges for states where our services may be taxable:
| State | Sales Tax Rate |
|---|---|
| Arizona | 7.75% to 9.12% |
| Connecticut | 1% to 6.35% |
| Colorado (Denver only) | 4.81% |
| Illinois (Chicago only) | 9.00% |
| Iowa | 6.00% |
| Louisiana | 4.45% |
| Massachusetts | 6.25% |
| New Mexico | 5.125% |
| New York | 8.37% to 8.88% |
| Ohio | 7.19% to 7.50% |
| Pennsylvania | 6.00% to 6.20% |
| South Dakota | 4.50% |
| Tennessee | 7.00% |
| Texas | 6.60% |
| Utah | 7.16% to 7.75% |
| Washington | 8.11% to 10.51% |
How and when is sales tax applied to my account?
- On Your Invoices: If your business is located in a taxable jurisdiction, sales tax is calculated and listed as a separate line item on your invoice. If you are located in a non-taxable state, or if you have submitted a valid exemption certificate, this line item will show as zero ($0.00).
- For Pre-paid Customers: The relevant sales tax is applied at the time of purchase to any pre-paid transaction or top-up.
- For Post-paid Customers: Sales tax is calculated on the taxable usage charges incurred during the billing cycle and is included on your monthly invoice.
I have an exemption certificate. What should I do?
If your organization holds a valid sales tax exemption certificate, please submit it to us as soon as possible so we can update your account status and issue tax-exempt invoices.
- Where to send it: Please email your certificate to collections@app.sinch.com.
- Please note: We are required by law to charge applicable sales tax until a valid exemption certificate is received and verified. Sales tax charged prior to receiving your certificate may not be refundable.
Where is this detailed in the Terms and Conditions?
Our standard terms and conditions outline tax responsibilities in Clause 25 (Taxes), which defines applicable taxes, clarifies the tax exemption submission process, and details requirements regarding withholding taxes.
Who can I contact if I have questions?
We are here to help. If you have any questions, concerns, or need clarification regarding tax charges on your account, please reach out to our team.