
Does Gross Sales Include Sales Tax? It Depends on Your State
The tax you collect at checkout usually sits outside gross sales, because it was never your money. Three states flip that answer, and one form on your desk ignores it entirely.
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Founder and CEO at Quaderno
I'm a software engineer and product designer. In 2014 I founded Quaderno to make tax compliance simpler for online businesses.
I write about selling across borders: sales tax and VAT, invoicing and the decisions that come with growth.
145 articles

The tax you collect at checkout usually sits outside gross sales, because it was never your money. Three states flip that answer, and one form on your desk ignores it entirely.

Dunning tools get the money back. They do not touch the invoice, the receipt or the tax you already declared on a charge that never cleared.

Processors pay out in batches with fees, refunds and third party tax already deducted, so no deposit ever equals an invoice. Here is how to reconcile what actually arrives.

An invoice requests payment and a receipt confirms it. When you charge a card instantly you send only one document, so here is which one compliance actually requires, region by region.

Six digits decide what customs charges you at the border. Here is how HS codes are built, how to find the right one for every product you sell, and why 2026 made classification everyone's problem.

Incoterms read like shipping terms, but the line they draw through customs is a tax line. Here is what each of the eleven rules does to your import VAT and duty bill.

Invoice automation covers two very different jobs: the invoices you receive and the ones you send. Here's how each works, and what makes them valid.

A chargeback and a refund both send money back to your customer, but only one of them leaves you in control. Here is what each costs, when to fight one, and how to correct the invoice and the tax you already reported.

Business gifts are tax deductible up to $25 per recipient per year under IRS rules. Here's exactly how the deduction works for client gifts, employee gifts, and gift cards.

An LLC protects your personal assets and costs money to maintain. What it doesn't do is change the sales tax, VAT or GST you owe on every sale.