Use Tax Calculator: Calculate Your State & Local Use Tax


Use Tax Calculator

Easily determine the consumer’s use tax you owe for items purchased out-of-state or online where no sales tax was collected. This Use Tax Calculator ensures you stay compliant with your state’s tax laws.


Enter the full price of the item before any taxes.
Please enter a valid, non-negative number.


Enter the amount of sales tax you paid to the seller, if any. Enter 0 if none was paid.
Please enter a valid, non-negative number.


This is typically the same as your state and local sales tax rate.
Please enter a valid, non-negative tax rate.


Total Use Tax Due
$0.00

Taxable Amount
$0.00

Expected Tax
$0.00

Tax Credit
$0.00

Formula: Use Tax Due = (Purchase Price × Use Tax Rate) – Sales Tax Already Paid. Our Use Tax Calculator simplifies this for you.

Component Value Description
Purchase Price $500.00 The base cost of the item.
Your Local Use Tax Rate 7.25% The tax rate applicable in your location.
Expected Tax (Total tax liability) $36.25 Purchase Price × Use Tax Rate.
Less: Sales Tax Paid (Credit) ($0.00) Credit for sales tax already paid to a seller.
Total Use Tax Due $36.25 The final amount you need to remit.

A step-by-step breakdown of how the Use Tax Calculator arrives at the final amount.

Visual comparison of the total tax liability versus the sales tax already paid. The difference represents the use tax due.

What is Use Tax?

Use tax is a tax imposed on the use, storage, or consumption of tangible goods and certain services that were purchased without paying sales tax. It is a complementary tax to sales tax, designed to ensure that a state receives tax revenue regardless of where a purchase is made. If you buy a taxable item online, from a catalog, or from an out-of-state seller who does not collect sales tax at the time of purchase, you are generally responsible for remitting the use tax directly to your state. The purpose of this system, and by extension a Use Tax Calculator, is to level the playing field for local, in-state retailers who are required to collect sales tax. Without it, out-of-state sellers would have an unfair price advantage.

Most individuals and businesses who make out-of-state purchases are potentially liable for use tax. This most commonly occurs with e-commerce, where a remote seller may not have a physical presence (nexus) in your state and therefore isn’t required to collect your state’s sales tax. A common misconception is that if no tax is charged online, the purchase is tax-free. In reality, the tax obligation shifts from the seller to the buyer. This is where an accurate Use Tax Calculator becomes an essential tool for compliance. For more details on filing, see our guide on filing your taxes.

Use Tax Formula and Mathematical Explanation

Calculating use tax is a straightforward process. The core principle is to determine the tax that should have been paid based on your local rate and then subtract any tax that was already paid. A Use Tax Calculator automates this for you.

The formula is as follows:

Use Tax Due = Expected Tax - Tax Credit

Where:

  • Expected Tax = Purchase Price × (Local Use Tax Rate / 100)
  • Tax Credit = Sales Tax Already Paid to the Seller

The final amount cannot be negative; if the sales tax you already paid is higher than your local use tax liability, you do not owe any additional use tax and are not entitled to a refund for the difference. The logic in any reliable Use Tax Calculator will cap the result at zero.

Variables Table

Variable Meaning Unit Typical Range
Purchase Price The pre-tax cost of the item or service. Currency ($) $1 – $100,000+
Use Tax Rate Your combined state and local sales tax rate. Percentage (%) 4% – 11%
Sales Tax Paid Any sales tax collected by the vendor at the point of sale. Currency ($) $0+
Use Tax Due The final amount of tax owed to your state. Currency ($) $0+

Practical Examples (Real-World Use Cases)

Example 1: Online Furniture Purchase

You live in a state with a 7% use tax rate. You purchase a sofa online from an out-of-state retailer for $2,000. The retailer does not collect sales tax on the order.

  • Purchase Price: $2,000
  • Sales Tax Paid: $0
  • Use Tax Rate: 7%

Using the Use Tax Calculator formula:
Expected Tax = $2,000 × 0.07 = $140.
Since you paid $0 in sales tax, your total use tax due is $140. You are required to report and pay this amount to your state’s department of revenue.

Example 2: Cross-State Electronics Purchase

You live in California where your local sales tax rate is 9.5%. You travel to Oregon (which has no sales tax) and buy a laptop for $1,500 for your business. Because you will use the laptop in California, you owe use tax.

  • Purchase Price: $1,500
  • Sales Tax Paid: $0
  • Use Tax Rate: 9.5%

The Use Tax Calculator computes:
Expected Tax = $1,500 × 0.095 = $142.50.
Your use tax liability to California is $142.50. This demonstrates the key difference when analyzing sales tax vs use tax.

How to Use This Use Tax Calculator

Our Use Tax Calculator is designed for simplicity and accuracy. Follow these steps to determine your liability:

  1. Enter Purchase Price: Input the total cost of the item before any taxes into the first field.
  2. Enter Sales Tax Paid: If the seller collected any sales tax (e.g., you bought from a state with a lower tax rate), enter that dollar amount here. If no tax was collected, enter 0.
  3. Enter Your Local Use Tax Rate: Input your local tax rate as a percentage. This is the same as the sales tax rate you would pay at a local store.
  4. Review the Results: The calculator instantly displays the “Total Use Tax Due,” which is the amount you need to remit. You can also see a breakdown of the calculation and a visual chart comparing your total tax obligation to what you’ve already paid.

The results from this Use Tax Calculator help you understand your financial obligation. Most states allow you to pay use tax when you file your annual state income tax return. Check out our state tax guides for more specific information.

Key Factors That Affect Use Tax Results

Several factors can influence the amount of use tax you owe. Understanding them is crucial for accurate calculation and compliance. Using a Use Tax Calculator helps account for these variables.

  • Purchase Price: This is the primary driver of the tax amount. The higher the price, the more use tax you will owe. Shipping charges are sometimes, but not always, exempt from the calculation.
  • Your Local Tax Rate: Use tax rates vary significantly by state, county, and even city. You must use the rate for the location where the item will be used or stored.
  • Tax Paid at Source: If you paid some sales tax to the out-of-state seller, you are entitled to a credit for that amount. This is a critical input for any Use Tax Calculator to avoid double taxation.
  • Item Taxability: Not all goods are taxable. Most states exempt items like prescription drugs or groceries. Ensure the item you purchased is subject to sales tax in your state before calculating use tax. A good topic to research is use tax exemption rules.
  • Shipping Origin and Destination: The entire concept of use tax revolves around moving goods from one tax jurisdiction to another. The rules are specifically designed for these out-of-state purchases tax scenarios.
  • Filing Deadlines: States have different deadlines for remitting use tax. Missing them can lead to penalties and interest, increasing the total cost. Many states tie the deadline to your income tax filing date.

Frequently Asked Questions (FAQ)

1. What’s the difference between sales tax and use tax?

Sales tax is collected by the seller at the point of sale. Use tax is self-assessed and paid by the buyer when sales tax was not collected on a taxable purchase. They are two sides of the same coin, with the same rate, but different collection methods.

2. Do I have to pay use tax on all online purchases?

No. Many large online retailers (like Amazon) now collect sales tax for all states. If sales tax was already collected at your local rate, you do not owe any additional use tax. A Use Tax Calculator is for when tax isn’t collected.

3. What happens if I don’t pay use tax?

While enforcement can be difficult, states are becoming more aggressive. Failure to pay can lead to audits, back taxes, significant penalties, and interest charges. It is legally required.

4. Is use tax a new tax?

No. Use tax laws have existed in most states for decades, dating back to the 1930s to protect local businesses during the era of catalog shopping. The rise of e-commerce has simply made the issue more prominent.

5. How do I pay the use tax I calculated?

Most states include a line on their annual income tax form for reporting and paying use tax. Some states also offer separate forms for remitting use tax at any time during the year. This is a key step after using a Use Tax Calculator. You can get help with a tax form generator.

6. What if I paid sales tax in another state, but their rate is lower than mine?

You still owe use tax, but you get a credit for the tax you already paid. For example, if your state’s rate is 8% and you paid 5% to the seller, you owe the 3% difference to your home state. Our Use Tax Calculator handles this automatically.

7. Are services subject to use tax?

It depends on the state. Some states tax certain services (like digital downloads or streaming services), while others only tax tangible goods. Check your state’s specific rules on taxable items.

8. Can a business owe use tax?

Yes. Businesses are a major focus of use tax enforcement. When a company buys equipment, supplies, or software from an out-of-state vendor without paying tax, it is responsible for remitting use tax. Proper accounting for how to file use tax is critical for business compliance.

Related Tools and Internal Resources

© 2026 Your Company. All Rights Reserved. This calculator is for informational purposes only and does not constitute financial advice.



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