Use tax is a type of consumption tax that applies to goods or services purchased out-of-state, online, or over the phone where no sales tax was collected by the vendor. It is designed as a companion to sales tax and ensures that your home state receives its fair share of revenue when you bring items into the state to use, store, or consume. Taxpayers are legally responsible for self-reporting and paying this tax directly to their state’s department of revenue.

1. Meaning of “Use Tax”

In plain English, use tax is the safety net or backstop for sales tax. When you buy a product at a local store in your neighborhood, the merchant automatically charges you sales tax at the register.

However, if you buy that exact same item from an online retailer located across the country who does not collect your state’s sales tax, the transaction isn’t completely tax-free. Your home state still expects to get paid for the right to use, store, or enjoy that product inside its state borders. The tax rate for use tax is almost always identical to your local combined sales tax rate.

2. Why “Use Tax” Matters

For individual taxpayers, use tax matters because it is a legal filing requirement that appears directly on most annual state income tax returns. Intentionally skipping it or ignoring the line item is technically a form of tax underreporting.

For freelancers, small business owners, and landlords, use tax matters immensely because it is one of the most heavily audited areas in state taxation. State tax auditors routinely examine business purchase invoices to see if office equipment, computers, or furniture were bought from out-of-state vendors tax-free. If a business fails to pay use tax on those assets, the state can levy substantial back taxes, compounding interest, and penalty fees.

3. How “Use Tax” Works

In real tax filing and business planning situations, use tax relies entirely on a self-reporting honor system. When you make an out-of-state or online purchase, it is up to you to check the receipt and see if sales tax was applied.

If the sales tax line shows zero, you must calculate the tax yourself based on your local tax rate. Individuals typically tally up these purchases at the end of the year and pay the total balance on a designated line of their individual state tax return. Businesses must track these transactions continuously and report them on their regular state sales and use tax filing schedules. Specific local reporting thresholds and calculation rates must be verified for the current tax year.

4. Simple Example of “Use Tax”

Imagine Chloe lives in a state with a 6% combined local sales tax rate. She decides to buy a high-end digital camera online from an out-of-state specialty camera store for $1,000. Because the store does not have an economic or physical presence in Chloe’s state, the website processes her order without adding any sales tax to her total.

When Chloe files her annual state tax return, she notes the $1,000 untaxed purchase. She multiplies the $1,000 purchase price by her local 6% tax rate, which equals a $60 use tax liability. She enters this $60 amount on her state tax return, safely settling her obligation with her state’s revenue department.

5. Who Is Affected by “Use Tax”?

Use tax broadly affects anyone who buys physical property or taxable services from out-of-state vendors without paying sales tax at checkout. This includes everyday individual consumers, employees buying personal items online, self-employed creators, landlords purchasing property supplies, and large corporations.

It applies in all states that enforce a standard sales tax system. It does not apply to residents or businesses operating entirely within the five states that choose not to levy a statewide sales tax (the “NOMAD” states: New Hampshire, Oregon, Montana, Alaska, and Delaware), unless specific local municipal jurisdictions state otherwise.

6. Common Mistakes Related to “Use Tax”

Assuming Out-of-State Means Tax-Free: Believing that if a website or out-of-state shop doesn’t charge you tax at checkout, you legally owe nothing to anyone.
Mixing Up Invoices: Businesses failing to audit their own purchase records, leading to missed use tax tracking on major asset acquisitions like computers or office chairs.
Forgetting the Credit for Sales Tax Paid: Not realizing that if you paid a partial or lower sales tax in another state while traveling, you only owe your home state the *difference* in the tax rate, rather than paying the full percentage all over again.
Failing to Keep Receipts: Not maintaining clear digital or physical receipts for untaxed out-of-state business expenses, which can complicate a state tax review or audit.

7. Forms Related to “Use Tax”

Because use tax is managed entirely by individual states, there are zero federal IRS tax forms associated with it. Instead, you will report it using state-level paperwork:

Individual State Tax Returns: Standard state resident returns, such as Form 540 (California) or Form IT-201 (New York), feature a dedicated line item specifically labeled for reporting unpaid use tax.
State Sales and Use Tax Returns: Dedicated schedules filed by businesses and freelancers (such as Form ST-100 in New York) to report both the sales tax they collected from customers and the use tax they owe on their own purchases.

8. “Use Tax” vs. Related Terms

Use Tax vs. Sales Tax: Sales tax is an explicit tax collected directly by the seller at the cash register or online checkout during a local transaction. Use tax is an identical tax that is self-assessed and paid directly by the buyer *after* the purchase because the seller failed to collect sales tax.
Use Tax vs. Excise Tax: Use tax is a general consumption tax applied to a wide array of common retail items based on local sales tax percentages. An excise tax is a highly targeted tax levied on very specific, niche products—such as fuel, alcohol, or hotel stays—and is often baked directly into the base price of the item.

9. Related Glossary Terms

10. FAQs About “Use Tax”

Q: If I buy a vehicle out of state, how do I pay the use tax?
A: For high-value items like cars, boats, or aircraft, you typically cannot wait until tax season to report it. States generally require you to pay the required use tax immediately at your local DMV or registration office before they will issue your official title and license plates.

Q: What happens if I already paid sales tax in another state while traveling?
A: Most states grant a reciprocal credit. If you paid a sales tax rate that is equal to or higher than your home state’s rate, you generally owe nothing extra. If you paid a lower rate, you only owe your home state the remaining percentage difference. Verify these provisions for the current tax year.

Q: How does the state find out if a business owes use tax?
A: State departments of revenue conduct routine, localized business audits. Auditors will review your company’s general ledger, asset depreciation lists, and out-of-state vendor invoices to trace whether sales tax was omitted on physical property purchases.

Q: Is use tax calculated at a different percentage rate than sales tax?
A: No. The use tax rate is designed to match your local combined sales tax rate exactly, ensuring complete financial neutrality regardless of where an item is sourced.

11. Final Takeaway

Use tax is a vital companion to sales tax that creates a balanced economic playing field between local brick-and-mortar stores and out-of-state online retailers. While tracking and self-reporting your untaxed purchases adds an extra step to your annual financial routine, staying aware of the rules keeps you fully compliant. By verifying your receipts at checkout, keeping a clean log of untaxed transactions, and confirming your local department of revenue rules for the current tax year, you can handle your annual filings with total confidence.

Disclaimer: This article is for general educational purposes only and should not be considered tax, legal, or financial advice. Tax rules can change, and your situation may be different. Consider consulting a qualified tax professional before making tax decisions.

What Is “Use Tax”?