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How often do I have to file a sales tax return?

by Paul le Roux | Aug 24, 2026 | Sales Tax Basics & Updates

You generally file US sales tax returns as often as the state assigns you—most ecommerce and marketplace sellers are put on a monthly or quarterly schedule, while some very small sellers are allowed to file annually. Once you are registered in a state, you usually...

What sales tax compliance actually costs an ecommerce seller?

by Paul le Roux | Aug 24, 2026 | Sales Tax Basics & Updates

For a typical ecommerce seller, the true cost of US Sales Tax compliance is a mix of direct cash costs (registrations, returns, penalties, interest) and indirect costs (staff time, systems, and risk management) spread across every state where you have nexus. In...

What is a zero return and do I have to file one?

by Paul le Roux | Aug 24, 2026 | Sales Tax Basics & Updates

A zero return is a normal sales tax return where you report that you had no taxable sales and collected no sales tax for the period, so the amount due is $0. In most U.S. states, if you are registered for sales tax and have an active account, you are still required to...

The real cost of ignoring sales tax nexus

by Paul le Roux | Aug 14, 2026 | Sales Tax Basics & Updates

Ignoring sales tax nexus can turn a manageable compliance task into a retroactive bill for back taxes, penalties, interest, audit costs, and collection pressure that comes straight out of your margin. For ecommerce and cross-border sellers, the biggest risk is not...

Do I need to register for sales tax if I only sell on tiktok shop?

by Paul le Roux | Aug 14, 2026 | Sales Tax Basics & Updates

If you only sell on TikTok Shop, you may not need to register for sales tax in every state where your customers are located, because TikTok Shop can collect and remit sales tax on marketplace sales in states where it operates as a marketplace facilitator. But that...

Sales tax checklist before you launch in a new state

by Paul le Roux | Aug 14, 2026 | Sales Tax Basics & Updates

Before you launch in a new state, check whether you already have sales tax nexus there, confirm whether what you sell is taxable, and register for a permit before you collect tax or start shipping taxable orders. In practice, that means reviewing both your own sales...
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Registered in South Dakota, USA.
Led by Paul le Roux, a dual-qualified Chartered Accountant (CA(SA), ICAEW), our firm specializes in helping Amazon, Shopify, and Walmart sellers stay compliant with U.S. sales tax registration, filing, and monitoring.
Your compliance is handled with professionalism, accuracy, and confidentiality.

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