Do You Charge Sales Tax on Items Shipped Out of State?

You just shipped a handmade product to a customer in another state, and you're staring at the checkout screen, wondering: do I charge sales tax on this? It's a fair question, and the answer isn't a simple yes or no. Whether you owe sales tax on items shipped out of state depends on a specific legal concept called "nexus," which determines whether your business has enough of a connection to the buyer's state to trigger a tax collection obligation. Understanding how nexus works and what changed after a landmark 2018 Supreme Court ruling can save you from costly surprises down the road.

Use this guide to learn whether you should charge sales taxes on items you're shipping across state lines.

What "Nexus" Means and Why It Matters

Nexus is the legal connection between your business and a state that creates a sales tax obligation. Think of it as the threshold a state uses to decide whether you're doing enough business there to require you to collect tax.

There are two main types of nexus you need to know about.

Physical nexus means your business has a tangible presence in a state. This can include an office, a warehouse, employees who work there, or even inventory stored at a third-party fulfillment center. If you use Amazon FBA, for example, Amazon may store your products in warehouses across multiple states, which can create physical nexus obligations in each state without you realizing it.

Economic nexus is different. It's triggered solely by your sales activity, even if you've never set foot in the state. Before 2018, only physical nexus mattered for out-of-state sellers. Then the Supreme Court decided South Dakota v. Wayfair, and everything changed. That ruling gave states the authority to require out-of-state sellers to collect sales tax once they cross a certain revenue or transaction threshold. Today, nearly every state with a sales tax has enacted economic nexus laws. The most common threshold is $100,000 in sales and 200 transactions in a calendar year, but states vary, so verify the current sales tax nexus rules directly with each state's department of revenue. The SBA's Sales Tax 101 guide offers a useful overview of when registration requirements typically kick in.

Do You Charge Sales Tax on Items Shipped Out of State?

Yes, you may need to charge sales tax on items shipped out of state, but only if you have nexus in the state where your buyer is located. Here's how that plays out across three common scenarios:

1. You have nexus in the buyer's state. You must register for a sales tax permit there, collect tax at the point of sale, and remit it to that state's tax authority. The rate you charge is typically based on the buyer's location, not yours.

2. You don't have nexus in the buyer's state. Generally, you are not required to collect sales tax on that sale. The buyer may technically owe "use tax" to their own state, but collecting and remitting that is their responsibility, not yours.

3. You sell through a marketplace like Amazon, Etsy, or eBay. Most states now have marketplace facilitator laws, which require the platform itself to collect and remit sales tax on your behalf. This doesn't mean you're off the hook entirely; you still need to track where you have nexus. For sales made through those platforms, though, the collection responsibility shifts to the marketplace.

Knowing which scenario applies to your business requires tracking your sales activity by state. That's manageable when you're selling in a handful of states, but it gets more complicated as your volume grows.

Destination-Based vs. Origin-Based Sales Tax

Once you've confirmed you have nexus in a state, the next question is which tax rate you charge. That depends on whether the state uses origin-based or destination-based rules.

Destination-based means the sales tax rate is determined by where the buyer receives the shipment. This is the rule in most U. S. states, and it's the one most out-of-state sellers will apply. If you're shipping a product from your Ohio warehouse to a customer in Colorado, you charge Colorado's applicable rate.

Origin-based means the rate is based on where the seller is located. However, this typically applies only to in-state sales. If you're an out-of-state seller shipping into an origin-based state, destination-based rules almost always still apply to you.

Rates can vary not just by state, but also by county and city. A customer in Chicago pays a different combined rate than a customer in a rural Illinois town. Most ecommerce platforms handle this automatically once you configure your tax collection settings correctly.

How Economic Nexus Thresholds Work

Once you cross a state's economic nexus threshold, you're required to register for a sales tax permit in that state and start collecting. You can't wait until your next filing period; the obligation starts when the threshold is crossed.

Thresholds are typically measured on a rolling 12-month or calendar-year basis. Say you run a Shopify store and ship $120,000 worth of goods to customers in Illinois over the past year. You've likely crossed Illinois's threshold and need to register there before your next sale into the state.

Here's a snapshot of how thresholds vary across a few representative states:

Some states count gross revenue; others count only taxable sales. A use transaction counts as an alternative trigger. The details matter, and they shift over time as states update their laws.

This is exactly where many small business owners run into trouble. They're growing steadily, crossing thresholds in new states, but not realizing they've created new obligations until a notice arrives. 1-800Accountant's year-round tax advisory service can help you stay ahead of those thresholds before they turn into penalties. The IRS Sales Tax Deduction Calculator is also a useful reference for sellers tracking deductible taxes paid across states.

What Happens If You Don't Collect Sales Tax Correctly

If you have nexus in a state and fail to collect and remit sales tax, you're liable for the uncollected tax, plus interest and penalties. States can and do audit out-of-state sellers, and the lookback period can stretch back several years, depending on the state.

The good news is that many states offer voluntary disclosure programs. These allow businesses to come forward proactively, settle back taxes, and often receive reduced penalties. If you've been selling across state lines without carefully tracking nexus, voluntary disclosure is worth exploring before a state finds you first.

This is more of an online sales tax compliance for small businesses issue, not a crisis. For practical guidance on next steps, our article on handling sales tax walks through the registration and remittance process in plain terms.

Steps to Get Compliant with Multi-State Sales Tax

Getting your sales tax situation under control doesn't have to be overwhelming. Work through these steps in order:

1. Audit where you have nexus. Review your physical locations, remote employees, fulfillment centers, and sales volume by state. This is your starting point.

2. Identify which states require registration. Cross-reference your sales data against each state's current economic nexus threshold. If you've already crossed a threshold, you need to act.

3. Register for a sales tax permit in each state where you have nexus. You must register before you start collecting; collecting without a permit creates its own set of problems.

4. Configure your sales tax collection. Most ecommerce platforms, including Shopify and WooCommerce, let you set up automatic tax collection by state. Take the time to do this correctly.

5. File and remit on time. Filing frequency varies by state and often by your sales volume within that state. Some states require monthly filing; others allow quarterly or annual.

6. Keep records. Document your sales by state consistently. Clean records are your best defense if you're ever audited.

For sellers operating online, our ecommerce sales taxes guide goes deeper into platform-specific considerations and how digital sellers should approach compliance.

Sell in Every State with Confidence

Multi-state sales tax is one of those areas where the rules are genuinely complex, the stakes are real, and the details change regularly. Whether you charge sales tax on items shipped out of state comes down to one question: Do you have nexus in the buyer's state? And nexus, especially economic nexus, is easier to trigger than most sellers expect.

If you're not sure where you stand, or if your business has been growing across state lines without a clear compliance plan, the tax advisory team at 1-800Accountant can help you map your exposure, get registered where needed, and stay current as thresholds shift.

Frequently Asked Questions

Does the Wayfair ruling apply to small businesses?

Yes, but the practical impact depends on your sales volume. The South Dakota v. Wayfair decision opened the door for states to tax out-of-state sellers, but each state sets its own threshold for when that obligation kicks in. A seller doing $20,000 a year in sales to customers in a given state is unlikely to cross most thresholds. If your business is growing and you're shipping to customers across multiple states, regularly monitor your sales by state so you know when you're approaching a trigger.

If I sell on Etsy or Amazon, do I still need to worry about sales tax?

Marketplace facilitator laws in most states require platforms like Etsy, Amazon, and eBay to collect and remit sales tax on your behalf for sales made through their platforms. For those specific sales, you generally don't need to collect tax yourself. However, you still need to track your overall nexus exposure, especially if you also sell through your own website or other channels. Marketplace sales may count toward your economic nexus threshold in some states, even though the platform handles the collection.

Can a state audit me for sales tax I didn't collect?

Yes. States have the authority to audit sellers with an out-of-state tax nexus, and many do so actively. If an audit reveals that you had nexus and failed to collect and remit, you'll owe the uncollected tax plus interest and potential penalties. Lookback periods vary by state, but three to four years is common, and some states can go back further if fraud is suspected. Proactive compliance is always the better financial decision.

How do I know what sales tax rate to charge a customer in another state?

In most cases, you'll use the destination-based rate: the combined state, county, and city rate that applies to the buyer's shipping address. Rates can vary significantly within a single state, so a flat state rate won't always be accurate. The simplest solution is to use your ecommerce platform's built-in tax calculation tools, which automatically pull current rates by ZIP code. If you're on a custom or less common platform, third-party tax calculation services can integrate directly with your checkout and keep rates updated in real time.