Quick summary: Most wholesalers will not open an account without a resale certificate. This explains what that is, how it differs from a business license and an EIN, roughly what each costs, and what a wholesaler is actually checking when they ask. It is general information rather than legal or tax advice, and the details vary by state, so confirm anything specific with your state agency or an accountant.
The four documents people confuse
These get used interchangeably and they are four different things.
Business registration. Registering the business itself, as a sole proprietorship, LLC or corporation, usually with your state or county. This establishes that the business exists.
EIN. A federal employer identification number from the IRS. Free, issued online in minutes. A sole proprietor without employees can often use their social security number instead, but an EIN is worth having so you are not handing your SSN to suppliers.
Business license. Permission from a city or county to operate. Whether you need one depends entirely on where you are and what you do. Some cities require one for a home-based online shop; many do not.
Resale certificate, also called a seller’s permit or sales tax permit. This is the one wholesalers care about. It registers you with your state to collect sales tax, and it lets you buy goods for resale without paying sales tax on them.
Why the wholesaler asks
This is worth understanding, because it explains why the request is not negotiable.
Sales tax is meant to be collected once, at the final sale to a consumer. When a wholesaler sells to a shop, that is not the final sale, so no tax should be charged. But the wholesaler has to be able to prove to their state that they were right not to charge it. Your resale certificate on their file is that proof.
If they sell to you tax-free without documentation and get audited, the wholesaler owes the tax, plus penalties. That is why a supplier who seems relaxed about everything else will not budge on this. It is their liability, not yours.
What it costs and how long it takes
In most states the seller’s permit is free or costs under fifty dollars, and the application is completed online. Some states issue the number immediately; others take a few days to a couple of weeks. A handful require a security deposit if you project high sales.
Business registration costs vary much more. A sole proprietorship might cost nothing beyond a name filing. An LLC typically runs from around fifty to several hundred dollars depending on the state, plus an annual fee in some.
The five states without a general statewide sales tax are Alaska, Delaware, Montana, New Hampshire and Oregon. If you are in one of those you may have no resale certificate to give, and wholesalers will generally accept alternative documentation instead. Ask before you assume it is a problem.
What you will be asked for when opening an account
A typical wholesale account application asks for the legal business name and address, the resale certificate or seller’s permit number, an EIN or SSN, and often something showing you are a genuine retailer: a website, a shop address, a market booth, or photographs of your setup. That last part exists because wholesalers do not want to sell at trade prices to consumers.
If you are brand new and have none of it yet, say so. Most wholesalers would rather help a real new shop get set up than lose it.
The mistakes worth avoiding
Do not use a resale certificate to buy things for yourself. Buying personal items tax-free on a resale certificate is tax fraud, it is easy to spot in an audit, and it is not worth the few dollars saved.
Do not let it expire. Several states require periodic renewal and a lapsed certificate can freeze your wholesale accounts at the worst possible moment.
Do not assume one certificate covers every state. If you sell across state lines you may have obligations elsewhere once you pass certain thresholds. This is the part most worth asking an accountant about, and it is cheap advice compared with getting it wrong.
The realistic order of operations
Register the business, get the EIN, apply for the seller’s permit, check whether your city wants a business license, then open wholesale accounts. Start to finish this is usually one to three weeks and a few hundred dollars at most, and it is genuinely the least difficult part of starting a shop.
Once you have the paperwork you can open an account and start buying. You can browse the wholesale accessories range before your certificate comes through, so you know what you want the day it arrives.