Sales Tax and Use Tax Aren’t the Same Thing — And Confusing Them Is Costing Businesses Money

|Updated at April 06, 2026

Evaluating the major difference between collecting and calculating sales tax and use tax typically gets complex with the growth in businesses. As a result, this confusion keeps growing and results in various types of indirect taxes and costs money for businesses. This makes it important for the businesses to know the differences and the similarities between them.   

The major reason for the confusion is that they work almost the same time, but they operate differently; they’re fueled by different conditions, and the decision to track and remit them falls on different parties.

Excited to know the difference? Read more to get a clear differentiation between the sales tax and the use tax and save the extra costs for your businesses. 


The Core Difference Between Sales Tax and Use Tax

Folks purchasing taxed items pay extra through the register – this amount gets passed along later to government offices. Retailers who operate locally grab that fee during checkout instead of making customers hand it over themselves. 

That money moves from business accounts straight into state coffers without buyers lifting a finger. Each sale ties back to regional rules shaping how much shifts between pockets. The buyer’s obligation is essentially passive — the tax is set aside in the transaction and handled by the seller.

Use tax flips that structure. It applies when a buyer purchases taxable goods or services from a seller that didn’t collect sales tax — typically because the seller has no nexus in the buyer’s state and thus faces no collection obligation. 

In that case, the buyer owes use tax directly to their own state at the same rate that sales tax would have applied. The obligation shifts entirely to the purchaser, which is why use tax compliance is so often missed. There’s no invoice line item directing the payment. The buyer has to self-assess, self-report, and self-remit.


Why Use Tax Gets Overlooked and Why That’s a Problem

Use tax has historically been concealed because it’s largely self-enforced. When a business buys office equipment from an out-of-state vendor that doesn’t charge sales tax, there’s no automatic arrangement ensuring the buyer remits use tax to their state. 

The vendor has no obligation to collect it. The state has no visibility into the transaction unless the buyer discloses it. For years, this created a huge compliance gap that most small and mid-sized businesses either weren’t aware of or simply ignored.

That gap has become riskier to ignore. State revenue departments have significantly improved their ability to identify use tax exposure through data-sharing agreements, third-party payment data, and audit programs firmly targeting business purchases from out-of-state vendors. 

The South Dakota v. Wayfair decision also shifted some of this dynamic by asking more sellers to collect sales tax based on economic nexus—which reduces use tax exposure for buyers in some transactions. But it doesn’t eliminate it, particularly for purchases from small vendors, foreign suppliers, or categories of goods that remain exempt from economic nexus thresholds.


How This Plays Out at the State Level — Ohio as an Example

Every state with a sales tax also has a separate use tax, and the rates usually match each other. Ohio is a strong example because its tax structure resembles the difficulties most businesses face in real life. The state has a base sales and use tax rate. 

But county-level rates vary, and the final rate depends on where the buyer is based or where the goods are used. For businesses purchasing taxable items for use in Ohio without paying sales tax to the vendor, the use tax obligation is calculated on the purchase price at the correct combined rate for their location.

If you’re trying to understand what that looks like for specific transactions, an Ohio sales tax calculator can help clarify the applicable rates by location — useful both for sellers deciding what to charge and for buyers self-assessing what they owe. 

The rate structure matters because use tax is calculated the same way sales tax would have been, which means local rates apply, not just the state’s base rate.


Practical Steps for Managing Use Tax Compliance

For businesses with regular out-of-state purchasing, use tax can’t be managed as an afterthought. It requires a systematic approach built into the accounts payable process rather than addressed at year-end when the amounts are harder to reconstruct accurately.

A functional use tax process typically involves reviewing vendor invoices for missing sales tax charges, determining whether the purchased goods or services are taxable in the state of use, calculating the applicable use tax at the correct rate, and remitting it on the state’s use tax return — either as a separate filing or as part of the combined sales and use tax return depending on the area of operation. 

Businesses that build this review into their standard AP workflow tend to stay current with their use tax obligations. Those that don’t tend to discover their exposure during an audit, which is a significantly more expensive way to learn the same lesson.

Conclusion 

Both the sales tax and the use tax are types of taxes that are applied to different transactions. Sales tax is generally applied when the transaction is made at the point of sale. Opposite to this, use tax is applied when the item is bought outside the state but used inside it. 

The major difference comes at the point where they are bought and used. In the end, having a clear differentiation between them is crucial for businesses to save the extra costs that they pay and avoid fines and changes.   

FAQs

The reason is not getting reminded of it. Generally, there is no mention of use tax on invoices, which results in mistakes.

Yes, this is irrespective of the business. Even small businesses might have to face penalties related to use tax.

Yes, many large businesses use the technology to get reminded of unpaid taxes and calculate other taxes automatically.



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