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  • taxes

How to Pay Sales Tax as a Small Business

Business owner working

Learn how to register, collect, and file sales tax as a small business.

Stay compliant, avoid penalties, and simplify your tax process with this step-by-step guide..

Learn more
Mark J. Kohler May 27, 2025 • 4 min

Running a small business comes with enough to-do’s already—sales, customer service, operations, marketing. And somewhere in all of that, you’re supposed to figure out sales tax?

Yep. But don’t worry—once you understand a few basics, how to pay sales tax as a small business becomes just another part of staying legit and running strong.

Let’s walk through it step-by-step so you can stay compliant, stay confident, and avoid any nasty surprises down the road.

 

Do small businesses have to collect sales tax?

In most cases, yes. If your business sells physical goods—or even certain services—you probably need to collect sales tax. The rules depend on the state, but the general idea is this:

If your business has a nexus (a connection to a state), that state expects you to collect sales tax from customers who live there. Nexus can be triggered by:

  • A physical location (even a home office)
  • Employees or inventory in that state
  • Reaching a certain number of sales or transactions (especially with online sales)

So whether you’re selling locally or through a website, knowing how to pay sales tax as a business means starting with where you do business—and who you’re selling to.

 

How do I register for sales tax as a small business owner?

Once you know where you have nexus, you’ll need to register for a sales tax permit in each of those states. This process is usually pretty straightforward. Head to your state’s Department of Revenue website, fill out a quick form, and you’re good to go.

Once approved, you’ll get a permit (sometimes called a seller’s permit or license) that allows you to legally collect sales tax. This isn’t optional—you need the permit before collecting tax.

This step is foundational for any business owner learning how to pay sales tax as a small business—and it keeps you on the right side of the law from the beginning.

 

What is the process for paying sales tax?

So now you’re registered. What’s next? It’s really a three-part process:

  1. Collect the tax at the time of sale.
    Whether it’s in-person or online, you’ll need to charge the right sales tax rate based on your customer’s location. Many POS systems and eCommerce platforms can automate this for you.
  2. Track your sales and taxes collected.
    Good recordkeeping is your best friend here. Keep detailed logs of taxable vs. non-taxable sales, total amounts collected, and any exemption certificates received.
  3. File your sales tax return and send in the payment.
    Most states allow online filing and payment. Be sure to file even if you didn’t collect any tax during that period—it’s often required.

If you’re an online seller wondering how to pay tax for online sales, the process is the same—just make sure you're tracking nexus in multiple states, as online sales can trigger it faster than you think.

 

How often do small businesses need to file sales tax returns?

This depends on the state and your total sales volume. When you register, the state will assign you a filing frequency:

  • Monthly: For businesses with higher sales volume
  • Quarterly: For mid-range sellers
  • Annually: For lower-volume or seasonal businesses

Even if you didn’t make any sales during a given period, most states still expect a “zero” return. Set a reminder—late filings can mean interest, penalties, and extra stress you don’t need.

So, if you’re asking how to pay sales tax for small business success long-term, the answer is: stay consistent. Build it into your monthly routine like any other bill.

 

Can a small business be exempt from sales tax?

There are situations where a small business might be exempt, but it’s not the norm. You may not need to collect sales tax if:

  • You only sell non-taxable products or services (like some digital goods, food, or professional services depending on the state)
  • Your business is located in a no-sales-tax state (like Oregon, Delaware, or Montana)
  • You don’t have nexus in the states where you make sales

But don’t assume anything. Always check with your state’s tax authority or consult a tax professional. And if your customers are exempt (like resellers or nonprofits), be sure to collect proper exemption documentation.

Bottom line? Knowing how to pay business sales tax also means knowing when you’re not required to—and having the right records to prove it.

 

Final Tip: Don’t Go It Alone

Sales tax isn’t fun, but it’s absolutely manageable. The key is to get registered, get organized, and get on a filing schedule that works for you. You don’t need to be an expert—you just need to stay proactive.

And when in doubt? Get a pro in your corner. Whether it’s your accountant or a certified advisor, having someone who understands sales tax rules across multiple states can save you time, money, and serious frustration.

 


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