E-Commerce Sales Tax

E-commerce , or buying and selling online, is growing faster than ever. With this boom, understanding sales tax has become more critical for businesses. As more people shop...

May 14, 2026
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E-commerce, or buying and selling online, is growing faster than ever. With this boom, understanding sales tax has become more critical for businesses. As more people shop online, companies face new challenges in keeping up with sales tax laws that can change from place to place.

This guide will explore the ins and outs ofe-commerce sales tax, covering sales tax exemption, marketplace facilitator laws, and how sales tax software can benefit your company.

What Is E-Commerce Sales Tax?

E-commerce sales tax, also called online sales tax, is charged and collected from your online customers on your website or the platforms you sell on. It’s generally a percentage of the price of the items that you sell and can be compared to the tax you’d charge a customer at a brick-and-mortar store.

However, sales tax isn’t just reserved for online sales or across platforms like Amazon, Shopify, and Etsy. Sales tax laws have become more complicated since being updated in the South Dakota v. Wayfair Supreme Court case.

The Supreme Court ruled that each state can require sellers with no physical presence to collect and remit sales tax for goods sold to customers in that state. This requirement kicks in if the retailer’s sales reach a certain threshold, which varies by state—for instance, $500,000 in New York and California, but only $100,000 in Alaska.

How Nexus Affects E-Commerce Sales Tax

Nexus refers to a connection with a state that requires a business to track and pay sales tax. It can be established through a physical presence, such as a store or warehouse, or having employees there. However, it’s different from state to state.

Economic nexus is based on the amount or how much revenue you make in sales in a state. You must collect and remit sales tax if you reach a state’s threshold (which we cover below).

Marketplace Facilitator Laws in E-Commerce

Marketplace facilitator laws add another layer of complexity to e-commerce taxation. These laws designate online platforms like Amazon or eBay as responsible for handling sales tax collection and remittance on behalf of third-party sellers.

What does this mean for e-commerce businesses? In states where marketplace facilitator laws are in effect, businesses leveraging these platforms may be relieved of the burden of managing sales tax obligations individually.

However, while these laws may offer some respite, they also underscore the importance of understanding the broader sales tax nexus landscape. After all, even with marketplace facilitator laws in place, businesses still need to understand state sales tax rules to make sure they’re in compliance. Staying informed and proactive is key to avoiding any sales tax-related headaches down the line.

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Why Is E-Commerce Sales Tax Important?

It’s no secret that sales tax is complicated. It can be hard to keep track of your sales manually and whether you’ve reached nexus. This is among the many other things you need to remember as you run an e-commerce business. Here are the main reasons why e-commerce sales tax is essential.

1. Missing your sales tax obligations can negatively impact your business

You’ll have to register for a sales tax permit when your business reaches nexus in a new state, whether through physical or economic nexus. This will allow you to collect sales taxes in the state so you can file returns and pay any sales tax you may owe.

If you miss these steps, you may be subjected to an audit and have to pay hundreds to thousands of dollars in past-due sales tax and interest. Some states also have criminal penalties for failure to file or pay sales tax.

2. Doing sales tax right is good for business

When managing sales tax correctly, you charge the right amount of sales tax every time at checkout. Businesses that don’t charge customers the right amount of sales tax may have to ask for additional payments, which can put their trust in you at risk. This can make retaining customers and building your brand’s reputation harder.

3. Sales tax fuels growth in states

States and local sales tax authorities use these taxes to raise revenue for communities and improve roads, schools, and libraries.

How Does E-Commerce Sales Tax Work?

Figuring out the ins and outs of e-commerce sales tax can seem challenging, especially when you’re unsure how it works. Essentially, when someone buys a product online, the store usually adds extra money to the price as sales tax. The amount added depends on the rules of the state where the business is and where the customer is located.

For online store owners, you must be up-to-date on the sales tax laws in each state you sell to. This is crucial for correctly charging sales tax and keeping accurate records. This whole task is known as multi-state sales tax compliance.

How to Set Up E-Commerce Sales Tax for Your Business

So, launching an online store without a clear grasp of each state’s sales tax compliance requirements could lead to serious headaches. Understanding these regulations is key to ensuring your online shop operates smoothly and legally.

1. Identify Where You Have Sales Tax Nexus

The first step in managing sales tax compliance is determining the states where you do business and how to collect taxes from them.

Most states tax online businesses based on the buyer’s location. That means you set and collect taxes based on the rates of their state. These are called destination-based states.

So, if you operate in Maryland but sell to customers in other states, set your taxes based on the rates of your customers’ states.

Origin-based states, like Arizona, tax businesses based on their location. So, collect taxes based on the rates of the state where your business is running.

2. Securing Your Sales Tax Permit

Once you’ve identified how to charge your sales taxes, you need to register for a sales tax permit (a seller’s permit) in each state.

Valid sales tax permits allow you to collect sales tax from your buyers legally. The application process and permit costs vary, but some states offer online registration to simplify the process.

Remember to keep track of your permit’s expiration date to avoid potential disruptions in your sales tax collection.

3. Collecting and Reporting Sales Tax

With your permit obtained, you want to implement an effective sales tax collection system. Most e-commerce platforms allow you to use automatic sales tax calculations based on your customer’s location and the applicable rates.

That prevents you from overcharging your customers with these taxes. Now, you want to report and file the sales tax returns for each state you do business with.

Sales tax reporting deadlines differ from one state to another. The frequency ofsales tax filing (monthly, quarterly, or annually) usually depends on your sales volume in that state. And, even if you haven’t collected any sales tax in a particular state during afiling period, you still need to submit a zero return report.

Missing deadlines or failing to file can result in penalties, so it’s crucial to stay organized and adhere to each state’s specific requirements.

4. Using Automated Sales Tax Software

No matter how organized you are, managing sales tax compliance manually can be overwhelming. It also takes too much time, time that you can spend growing your business. What should you do? Usesales tax compliance software. These tools’ built-in sales tax features will do all the work for you. That includes simplifying the calculations, filing procedures, and tracking sales tax reports.

State-by-State Economic Nexus Laws

In this section, you’ll find information on the economic nexus thresholds for each of the 50 states. If you don’t have a physical presence in a state but sell to customers there and need to know what triggers your need to collect, file, and remit sales tax, this is what you need to know.

Keep in mind that different types of products and services are exempt from sales tax. Everything differs from state to state, so we recommend speaking with an expert if you’re unsure if you need to file sales tax.

Alabama

The economic nexus threshold in Alabama is $250,000 in retail sales during the previous calendar year.

Alaska

Alaska does not have a statewide sales tax, but some local municipalities charge a local sales tax. The economic nexus threshold in those cases is $100,000 in gross annual sales and 200 transactions.

On January 1, 2025, the 200 transaction threshold will be removed.

Arizona’s economic nexus threshold is $100,000 in gross sales or more in the previous or current calendar year.

Arkansas

In Arkansas, the economic nexus threshold is having taxable sales of more than $100,000 or more than 200 transactions during the previous or current calendar year.

California

California is one of the states with a higher economic nexus threshold. The threshold is sales of tangible personal property exceeding $500,000 during the preceding or current calendar year.

Colorado

The economic nexus threshold in Colorado is more than $100,000 in retail sales in the preceding or current calendar year.

Connecticut

Connecticut is one of the few states with both a transaction- and revenue-based threshold. In the state, sellers reach economic nexus when they have retail sales of at least $100,000 and 200 transactions during a 12-month period.

Florida

In Florida, tangible retail sales of tangible personal property exceeding $100,000 during the previous calendar year will require sellers to register and collect sales tax from customers.

Georgia

Georgia requires sellers and businesses with gross revenue from retail sales of tangible personal property exceeding $100,000 or if retail sales of tangible personal property is 200 transactions or more to register and file sales tax.

Hawaii

Hawaii is also a state that looks at both transactions and revenue amounts to determine its economic threshold. Sellers with gross proceeds of $100,000 or more or 200 separate transactions in the preceding or current calendar year.

Idaho

In Idaho, businesses with sales exceeding $100,000 in the previous or current calendar year must register, collect, file, and pay sales tax.

Illinois

Illinois’ economic nexus threshold is $100,000 or more from the sale of tangible personal property or the seller’s 200 or more separate transactions during the previous 12-month period.

Indiana

In Indiana, sellers with gross revenue exceeding $100,000 in the previous or current calendar year must register and file sales tax.

Iowa

Iowa sellers must register, collect, and file sales taxes if their gross revenue exceeds $100,000 or more in the previous or current calendar year.

Kansas

In Kansas, sellers with gross sales exceeding $100,000 or more in the previous or current calendar year must register, charge, and remit taxes to the state.

Kentucky

In Kentucky, the economic nexus threshold is gross receipts from sales exceeding $100,000 or the seller making 200 or more separate transactions in the previous or current calendar year.

Louisiana

In Louisiana, sellers with gross revenue from sales exceeding $100,000 in the previous or current calendar year must file and remit sales tax.

Maine

The economic nexus threshold in Maine is the total gross sales of tangible personal property or taxable services exceeding $100,000 in the previous or current year.

Maryland

Maryland sellers must charge and remit taxes if their gross revenue from sales exceeds $100,000 or the number of transactions is 200 or more during the previous or current calendar year.

Massachusetts

Massachusetts set its economic nexus threshold at $100,000 for sales in the previous or current taxable year.

Michigan

In Michigan, the economic nexus threshold is taxable and nontaxable gross sales in the prior year exceeding $100,000 or the number of transactions over 200.

Minnesota

Minnesota sellers must collect and remit sales tax if their retail sales exceed $100,000 or if they have had 200 or more retail sales in the previous 12 months.

Mississippi

The economic nexus threshold in Mississippi is sales of more than $250,000 in the previous 12 months.

Missouri

Missouri’s economic nexus threshold is gross receipts from taxable sales of tangible personal property that exceed $100,000 annually.

Nebraska

In Nebraska, the economic nexus threshold requiring sellers to collect and remit taxes is retail sales of more than $100,000, or if the number of separate transactions is 200 or more during the previous or current calendar year.

Nevada

Businesses that sell in Nevada must collect and remit sales tax if their retail sales are more than $100,000 or the number of separate retail transactions is 200 or more in the previous or current calendar year.

New Jersey

New Jersey has a revenue and transaction threshold for economic nexus that can be triggered. The thresholds are gross revenue from sales of tangible personal property, specified digital products, or taxable services exceeding $100,000 or the number of separate transactions being 200 or more in the previous or current calendar year.

New Mexico

In New Mexico, having taxable gross receipts of at least $100,000 in the previous calendar year qualifies you for economic nexus in the state.

New York

New York’s economic nexus thresholds are similar to California’s. Sellers must file sales tax and remit it to the states if their gross receipts from sales of tangible personal property exceed $500,000 and they made more than 100 sales of tangible personal property in the previous four sales tax quarters.

North Carolina

In North Carolina, businesses must remit sales tax collected from customers if their gross sales exceed $100,000 in the previous or current calendar year.

North Dakota

North Dakota’s economic nexus threshold is taxable sales exceeding $100,000 in the previous or current calendar year.

Ohio

Sellers in Ohio with gross receipts exceeding $100,000 or making 200 or more separate transactions in the previous or current calendar year will be required to remit sales tax.

Oklahoma

Oklahoma requires sellers and businesses to collect and remit tax if their taxable merchandise sales exceed $100,000 in the previous or current calendar year.

Pennsylvania

Pennsylvania’s economic nexus threshold is gross sales exceeding $100,000 in the previous or current calendar year.

Rhode Island

The economic nexus threshold in Rhode Island is gross revenue from sales of $100,000 or more or the number of separate transactions is 200 or more in the previous calendar year.

South Carolina

South Carolina requires businesses to collect and remit sales tax if their gross revenue from sales of tangible personal property, products transferred electronically, and services delivered into the state exceeds $100,000 in the previous or current calendar year.

South Dakota

E-commerce businesses selling in South Dakota must collect and remit tax if their gross revenue from sales exceeds $100,000 in the previous or current calendar year.

Tennessee

Tennessee requires businesses to charge and remit sales tax in the state if they have retail sales of $100,000 or more in the previous 12-month period.

Texas

In Texas, businesses must file and remit sales tax if their revenue totaled $500,000 or more during the preceding 12 calendar months.

Utah

Utah’s economic nexus threshold is gross revenue from sales of tangible personal property, products transferred electronically, or services exceeding $100,000, or the seller made 200 or more separate transactions in the previous or the current calendar year.

Vermont

In Vermont, the economic nexus threshold is a minimum of $100,000 in sales or at least 200 individual sales transactions during the preceding 12-month period.

Virginia

Businesses selling in Virginia must file and remit sales tax if their annual gross retail sales exceed $100,000 or the seller makes 200 or more sales transactions in the previous or current calendar year.

Washington

Washington’s economic nexus threshold is more than $100,000 in cumulative gross receipts in the current or prior year.

West Virginia

West Virginia requires businesses to file and remit taxes if they have gross sales of $100,000 or more or if the number of separate transactions for goods or services is 200 or more in the preceding or current calendar year.

Wisconsin

Businesses that sell in Wisconsin must collect and remit sales tax if their gross sales exceed $100,000 in the previous or current calendar year.

Wyoming

Wyoming’s economic nexus threshold is gross revenue from the sale of tangible personal property, admissions, or services delivered exceeds $100,000 in the preceding or current calendar year.

Exemptions and Exceptions in E-Commerce Sales Tax

Not all products are taxable. A few items get a tax exemption. Understanding these exemptions can reduce your sales tax burden and ease compliance efforts.

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How to Apply for/Document Tax-Exempt Sales Online

Applying for a sales tax exemption certificate is a simple but long process. Here’s how to do it:

  • Start by researching the specific exemptions offered by the states you have nexus in to ensure you meet their standards.
  • Register your online business with the state it’s located in or with the local authorities.
  • Apply for a federal tax-exempt status from the IRS by filling out form 1023 or 1024 from their website.
  • Processing your application can take a few months, so be patient.
  • Some states require a state-specific exemption. In that case, enter your state’s Department of Revenue website and fill out the exemption form.

Documenting Tax-Exempt Sales Online

You want to keep detailed records of all the tax-exempt sales you make. These should include the customer’s exemption certificate, the items they bought, and the reason.

The Role of Marketplaces in Sales Tax Compliance

The rise of online marketplaces like Amazon, eBay, and Etsy has revolutionized the e-commerce industry, allowing small business owners to reach wider audiences.

Unfortunately, that only makes sales tax compliance more troublesome for remote sellers. Well, you don’t have to worry about that with marketplace facilitator laws. These laws shift the responsibility of sales tax collection and remittancefrom individual sellers to the online marketplace.

That means you no longer need to calculate and collect sales tax in each state where you do business. Of course, nothing is ever that simple.

Potential Risks

Would you trust someone you don’t know with your sales tax collection? Of course not! What if they make a mistake? That will be a hassle to solve.

Well, that could happen with these marketplaces. For the most part, these platforms are competent enough to collect all the taxes without any issues.

That said, nobody’s perfect. There’s always room for error.

Best Practices to Stay Compliant in These Platforms

Now that you understand the risk of these facilitator laws, what can you do to stay in the safe zone?

Provide Accurate Product Information

Even though the marketplace handles the collection, sellers are still responsible for providing accurate product information.

That ensures the marketplace calculates the correct sales tax rate for each transaction. Providing false information results in miscalculating sales taxes and facing the risk of being audited.

Keep Your Sales Tax Permit

Just because the marketplace collects your taxes for you doesn’t mean you can throw away your tax permit. Why?

Let’s say Amazon is collecting sales taxes on your behalf in California. What about other states?

If you have a website where you sell products to customers in other states, you’re responsible for collecting, remitting, and filing those taxes yourself. You’ll need a tax permit for that.

E-Commerce Sales Tax: Conclusion

Adapting to the ever-changing landscape of e-commerce sales tax can often feel like an uphill battle. That doesn’t mean you can’t take a few steps to simplify the process and achieve sales tax compliance.

Here are some steps to ensure your e-commerce business is protected against any sales tax pitfalls.

Using Sales Tax Software

Sales tax software can do all your calculations in seconds, saving valuable time and minimizing unwanted errors. It can also handle sales tax reporting and generate and file reports electronically with the appropriate state authorities.

Ultimately, sales tax software for e-commercecan reduce the administrative burden of sales tax compliance, giving you more time to focus on growing your business.

If you don’t know what software to choose, get in touch with us to see the results for yourself.

Staying Informed on the Latest Regulations

While using sales tax software can make your job easier, you must stay informed about the latest sales tax changes that might impact your business.

Monitor Industry News and Publications

Industry publications and online resources dedicated to e-commerce often provide valuable insights on sales tax trends and legislative changes. Regularly checking these resources keeps you informed about potential future challenges and opportunities.

Consult a Tax Professional

Consider consulting a tax professional if you have specific questions about your business’s sales tax obligations. They can provide tailored guidance and ensure you’re on the right track towards sales tax compliance.

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