Do resellers pay sales tax? Generally no, not on inventory they buy to resell — every state with a sales tax lets resellers purchase goods tax-free using a resale certificate, on the understanding that tax will be collected from the final customer instead. But that exemption is narrow. Resellers still pay sales tax on supplies and equipment they use in the business, they owe use tax on any inventory they pull for personal use, and they take on the job of collecting tax from their own buyers and sending it to the state.
Why Inventory Purchases Are Exempt
Sales tax is designed to hit the final consumer once, not every party in the supply chain. If a manufacturer, wholesaler, and retailer each paid tax on the same goods before they reached the customer, the effective rate would balloon well past what the law intends. The resale exemption prevents that stacking by treating resellers as intermediaries rather than end users. Your customer is the taxable consumer. You’re the collector.
That legal framing is what a resale certificate documents. When you hand one to a supplier, you’re declaring in writing that the goods are for resale in the regular course of business, and the supplier keeps it on file as their justification for not charging you tax.
What You Need to Buy Inventory Tax-Free
Two things: a seller’s permit from every state where you’ll collect sales tax, and a resale certificate you provide to each supplier.
The seller’s permit (sometimes called a sales tax permit or sales tax ID) is your registration with the state’s department of revenue. Most states issue it at no cost, and online applications are typically processed within 24 to 48 hours. You’ll usually need your federal Employer Identification Number, your legal business name and address, and a description of what you plan to sell. Five states have no statewide sales tax and therefore no permit requirement for that purpose: Alaska, Delaware, Montana, New Hampshire, and Oregon, though Alaska localities can impose their own sales taxes.
The resale certificate itself is short. It lists your business name, address, permit number, a description of the goods being purchased, and your signature. Thirty-six states accept the Multistate Tax Commission’s Uniform Sales and Use Tax Resale Certificate, which spares you from filling out a separate form for each state.1Multistate Tax Commission. Uniform Sales and Use Tax Resale Certificate – MTC The 24 full member states of the Streamlined Sales and Use Tax Agreement accept the Streamlined exemption certificate, which also works for drop shipping.2Streamlined Sales Tax. Exemptions Some states require their own form, so confirm before assuming a multistate certificate will be honored.
Certificates don’t all expire on the same schedule. In many states a properly completed certificate stays valid indefinitely as long as the buyer-seller relationship continues and the information stays accurate. Others require refreshing every three to five years. An outdated certificate won’t protect the supplier in an audit, and once they know that, they’ll start charging you tax rather than take the risk.
When Resellers Do Pay Sales Tax
The resale certificate is not a general exemption from sales tax. It only covers goods you genuinely intend to resell. Everything else you buy for the business is taxable at the register the same as any other purchase.
The line is straightforward. Inventory for resale is exempt. Supplies for running the business are not. Office furniture, computers, cleaning products, printer ink, packaging materials you consume rather than sell, and the espresso machine in the break room are all taxable when you buy them, because you’re the end user of those items.
Use Tax on Inventory You Keep or Use
This is where resellers most often trip up. If you pull something from your tax-free inventory and use it yourself — taking home a product you sell, using stock for a display that never sells, giving inventory away as gifts — you owe use tax on that item. Use tax exists specifically to catch situations where sales tax wasn’t paid at purchase. It’s typically calculated on what you originally paid, not the retail price, and most states require you to self-report it on your regular sales tax return.
Your Duty to Collect Sales Tax From Customers
Buying tax-free comes with a corresponding obligation. You collect sales tax from your customers and remit it to the state. The exemption doesn’t erase the tax; it moves the collection point to you.
Nexus: Where You Have to Collect
Your obligation to collect in a given state depends on nexus — a sufficient connection to that state to trigger tax duties. Physical nexus is the traditional form: a warehouse, office, storefront, or employees in the state. Economic nexus is newer, established by the Supreme Court’s 2018 decision in South Dakota v. Wayfair, Inc., which held that states can require remote sellers to collect sales tax based on sales volume alone, without any physical presence.3Supreme Court of the United States. South Dakota v. Wayfair, Inc.
The most common economic nexus threshold is $100,000 in sales into a state over a 12-month period. Some states also set a transaction count as an alternative trigger, typically 200 sales, though many have dropped that test in recent years. As of early 2026, roughly half the states with economic nexus laws still include a transaction threshold alongside the dollar amount.4Sales Tax Institute. Economic Nexus State by State Chart If you sell across state lines, monitor sales into each state and register once you cross either threshold.
Filing Returns
Once registered, you’ll file on a schedule the state sets, usually monthly, quarterly, or annually based on sales volume. Each return reports total sales and the tax you collected, and you remit that tax with the return. Late filings typically draw penalties from 1% to 10% of the tax due per month, often with a minimum flat fee even on zero-dollar returns. Interest accrues on unpaid balances. Chronic noncompliance can cost you the seller’s permit, which shuts down your ability to buy inventory tax-free.
When the Marketplace Collects Instead
If you sell through Amazon, eBay, Etsy, Walmart Marketplace, or similar platforms, marketplace facilitator laws shift the collection duty to the platform for transactions it facilitates.5Streamlined Sales Tax. Marketplace Facilitator State Guidance As of late 2025, roughly 47 states plus the District of Columbia and Puerto Rico enforce these laws. Some states still require you to file informational or zero-dollar returns even when the marketplace collected on your behalf. And if you also sell through your own website or at events, those direct sales stay your responsibility.
Drop Shipping: Where the Exemption Can Break
Drop shipping involves three parties — you, your supplier, and your customer — and creates two separate transactions that can each be taxable. Normally you give your supplier a resale certificate, they ship to the customer without charging you tax, and you collect tax from the customer at the delivery-address rate if you have nexus there.
The complication comes when your supplier has nexus in the customer’s state and you don’t, or your resale certificate isn’t valid there. In that case the supplier may charge you tax on the wholesale purchase. Streamlined Sales and Use Tax Agreement member states generally accept resale certificates issued by other member states, which smooths this out.2Streamlined Sales Tax. Exemptions Outside that agreement, acceptance of out-of-state certificates varies. Some resellers register in states where their suppliers operate simply to avoid getting hit with tax on drop-shipped wholesale orders, even without meeting that state’s nexus threshold.
Penalties for Misusing a Resale Certificate
Using a resale certificate to skip tax on items you don’t actually plan to resell is treated seriously. Penalties vary by state but generally include the unpaid tax plus interest, a percentage penalty commonly set at 10% of the tax owed or a minimum flat amount (whichever is greater), and in egregious cases misdemeanor criminal charges. Failing to self-report use tax on items pulled from inventory for personal use can trigger separate negligence penalties. Fraud or intent to evade can push the penalty to 25% of the tax due.
Beyond fines, persistent misuse can cost you the seller’s permit itself. Auditors look for patterns: resellers who consistently buy large quantities of consumer goods tax-free without corresponding retail sales draw scrutiny.
Records to Keep
States can audit your sales tax records three to four years back from the date a return was filed. That window extends indefinitely if you failed to file at all, and fraud removes the time limit entirely. Keep the following for at least four years:
- Resale certificates you gave to suppliers and any you received from buyers claiming a resale exemption. If an auditor asks why you didn’t charge tax on a sale and you can’t produce the buyer’s certificate, you’ll owe the uncollected tax plus penalties.
- Purchase invoices showing what you bought, from whom, and whether tax was charged.
- Transaction-level sales records showing what you sold, the tax collected, and the customer’s shipping address, which determines the rate.
- Copies of every filed return and proof of payment.
If you’re under audit or disputing an assessment, hold everything related until the matter is fully resolved, even past the normal retention period.