Sales tax and use tax generally protect the same tax base from different transaction paths. Sales tax is commonly collected by the seller; use tax can become due when taxable property or services are used and the correct sales tax was not collected.
Key takeaways
An invoice with no tax does not prove the purchase is exempt.
Online, out-of-state, and vendor-account purchases need use-tax review.
Inventory withdrawn for business or personal use can create liability.
Use tax should be accrued through transaction-level purchasing controls.
Understand the complementary tax concept
Sales tax is typically charged on a taxable retail sale by a registered seller. Use tax addresses taxable use, storage, or consumption when the appropriate sales tax was not paid.
New York guidance describes use tax as applying when taxable items or services are used in the state and sales tax was not collected. The exact base, rate, credit, and reporting route remain jurisdiction-specific.
- Identify the purchase and use location.
- Confirm product or service taxability.
- Check tax actually paid.
- Apply credits only when allowed.
Find common business use-tax triggers
Common triggers include online purchases without tax, out-of-state vendors, equipment, software, supplies, promotional items, samples, and assets moved into a higher-rate location.
Purchases made with a resale certificate can become taxable when withdrawn from inventory for internal use. Free items and bundled vendor invoices also need review.
- Review accounts payable for zero-tax vendors.
- Monitor assets moved between locations.
- Track inventory withdrawals.
- Include purchasing cards and employee expenses.
Distinguish exemption from noncollection
A vendor may omit tax because of system limitations, an invalid exemption flag, or lack of collection obligation. None of those facts alone establish that the purchaser owes nothing.
The buyer should classify the item, use, jurisdiction, and exemption evidence independently. Preserve certificates, invoices, contracts, and the reason no accrual was recorded.
- Do not rely solely on invoice tax.
- Validate exemption documentation.
- Review vendor master tax settings.
- Record no-accrual conclusions.
Calculate rate differences and credits
If tax was paid at a lower rate than the rate where the item is used, a jurisdiction may require additional use tax. New York provides examples involving property used in a locality with a higher rate.
Determine the taxable base, use location, date, applicable rate, and allowable credit. Avoid applying another jurisdiction’s payment as a credit without confirming the rule.
- Document original tax paid.
- Identify the final use location.
- Calculate only permitted credits.
- Retain the rate and authority used.
Build an accounts-payable control
Add taxability, use location, vendor tax, exemption, and accrual fields to purchasing workflows. Route high-risk categories and zero-tax invoices for review before the period closes.
Automated rules can flag likely exposure, but product and use facts still require ownership. Reconcile the use-tax accrual account to the return and purchase population.
- Create category and vendor rules.
- Flag untaxed taxable purchases.
- Sample purchasing-card activity.
- Reconcile accruals to filed returns.
Review inventory and self-use separately
Inventory purchased for resale can lose its exempt character when used by the business, given away, or converted to an internal asset. The measure of tax may follow cost, selling price, or another state rule.
Track samples, demos, replacements, donations, employee use, and fixed-asset transfers with transaction reasons. Coordinate inventory, procurement, and tax teams so withdrawals are not invisible.
- Code inventory withdrawal reasons.
- Review promotional and demo stock.
- Document valuation method.
- Report in the correct period and jurisdiction.
Frequently asked questions
Is use tax a different rate from sales tax?
It commonly complements the sales tax using the applicable rate where the item is used, but jurisdiction rules and credits must be checked.
Do businesses owe use tax on online purchases?
They may when a taxable purchase is used in the jurisdiction and the correct sales or use tax was not collected by the seller.
Is an invoice with zero tax proof of exemption?
No. The purchaser must determine taxability and support any exemption independently.
Can inventory withdrawals create use tax?
Yes. Property bought for resale can become taxable when withdrawn for internal, promotional, or personal use, subject to state-specific rules.
Official sources
Reviewed against the following primary sources on Aug 8, 2026.