How to Get a Resale Number in California (2026 Guide)

What's the Fastest Way to Actually Get One?

Last updated: September 2026

Bottom line: Learning how to get a resale number in California means registering for a seller's permit with the California Department of Tax and Fee Administration (CDTFA), a process that's free to apply for and typically takes a few business days online, not weeks. California doesn't technically issue something called a "resale number" as a standalone document — what most resellers mean by that phrase is the seller's permit number CDTFA assigns when you register your business, which you then use to fill out a resale certificate for suppliers so you can buy inventory without paying sales tax upfront.

Here's what that looks like in practice.

A Poshmark seller in Sacramento sourcing from a wholesale liquidator in Ontario, California registers with CDTFA online, gets a seller's permit number (often the same day the application is submitted), and then presents a completed resale certificate to that liquidator on the next purchase — a $1,500 pallet buy that would otherwise carry roughly 7.25-10.75% in California sales tax, depending on the county, now goes through tax-free because the reseller is certifying the goods are for resale, not personal use.

Who Actually Needs to Do This

You need a seller's permit in California the moment you're regularly selling tangible goods for profit, whether that's on Poshmark, eBay, at a swap meet, or through a personal storefront — there's no minimum revenue threshold that exempts a side-hustle reseller from registering.

CDTFA treats a single garage-sale-style event differently from ongoing resale activity, and the line is intent: buying inventory specifically to resell, even occasionally, is what triggers the requirement, not hitting a particular dollar figure in monthly sales.

What Do Resellers Actually Ask About This Process?

Do I need a seller's permit if I only sell part-time on Poshmark or eBay?

California doesn't carve out an exception for part-time or occasional resale — if you're regularly buying goods with the intent to resell them for profit, you're required to register, even if you're doing it around a full-time job and moving 15-20 items a month. u're doing it around a full-time job and moving 15-20 items a month.

The state cares about intent and regularity, not whether reselling is your primary income. A seller who treats it as a hobby that happens to generate $400 a month is still, legally, in the same bucket as a full-time operator.

Is there a cost to get a resale number in California?

Registering for the seller's permit itself is free — CDTFA doesn't charge an application fee for how to get a resale number in California through their standard online registration.

Some sellers, depending on their estimated tax liability and business structure, may be asked to post a security deposit, but that's the exception rather than the rule for a typical individual reseller starting out. Budget for your time filling out the application, not a filing fee.

How long does the actual number take to show up?

Most online applications through CDTFA's portal generate a seller's permit number within the same session or within a few business days, which is faster than the multi-week wait some sellers expect.

The physical permit certificate typically arrives by mail after that, but the number itself — the part you actually need to fill out a resale certificate for a supplier — is usually available almost immediately.

A reseller planning a wholesale lot purchase for next week should have no trouble registering in time if they start the process a few days ahead. , according to National Retail Federation research

What's the difference between the seller's permit and the resale certificate?

These get confused constantly, and understanding the difference matters more than the registration itself. The seller's permit is the account CDTFA sets up for your business, identified by your seller's permit number.

The resale certificate is a separate document — essentially a form you fill out and hand to a supplier — that uses your seller's permit number to certify you're buying inventory for resale, not personal use, so the supplier doesn't charge you sales tax on that purchase. You need the permit number first before the certificate means anything.

Do I need a different permit for each marketplace I sell on?

No. One California seller's permit covers your resale activity across Poshmark, eBay, Mercari, Depop, in-person sales, and any other channel you use — it's tied to you or your business entity, not to a specific platform.

What changes by state is whether you need to register somewhere else entirely, which comes up if you're sourcing or selling with a physical presence outside California.

What happens if I buy inventory before I have the number?

You'll simply pay sales tax on that purchase like a regular retail customer would, since without a resale certificate on file a supplier has no basis to skip charging it. That's not usually a legal problem — it's a cost problem.

A $2,000 wholesale buy made before registering means paying California's 7.25%+ sales tax on top, roughly $145 or more depending on the county, that a registered reseller with a certificate on file wouldn't have paid. It's one more reason to handle registration before, not after, the first serious inventory purchase.

Quick tangent — I use the Closo Demand Insights to track what is actually moving right now, which saves me about three hours a week of manual search. Worth a peek before your next haul.

What Do Operators Wish They'd Known Beforehand?

Bottom line: The registration itself is the easy part; the ongoing filing obligation that comes with it is where we see resellers get caught off guard, sometimes racking up $50-$100+ in late-filing penalties on returns they didn't realize they still owed even with zero taxable sales. Once you've figured out how to get a resale number in California and CDTFA activates your seller's permit, you're assigned a filing frequency — monthly, quarterly, or annually, based on your estimated sales volume — and you're expected to file a return for every period, even the ones where you sold nothing.

, according to International Trade Administration

What we see operators doing right is treating the seller's permit as the start of an ongoing relationship with the state, not a one-time errand.

A reseller in San Diego who registers, gets the number, buys a $3,000 wholesale lot tax-free with a resale certificate, and then forgets to file the next quarterly return because sales were slow can end up owing a penalty that's completely unrelated to actual tax owed — it's a filing penalty, not a tax bill, and it's avoidable by just submitting a $0 return on time.

What Trips People Up After They Register

The resale certificate itself is the other place we see honest mistakes turn into real problems.

That certificate is only valid for purchases you genuinely intend to resell — using it to buy a laptop for personal bookkeeping or a shelving unit for your own closet and calling it inventory is exactly the kind of misuse that shows up in a CDTFA audit and turns into back taxes plus interest.

The rule of thumb operators use: if the item goes into the closet you sell out of, use the certificate; if it goes into your home, pay the sales tax like anyone else. It's a simple line, but it's the one that gets blurred most often.

A second area worth flagging: a state seller's permit is separate from any local business license your city might require.

Getting the state piece sorted through CDTFA doesn't automatically clear you with, say, the City of Los Angeles's business tax registration requirement if you're operating from a home address there — the two run on different tracks, and some resellers assume finishing one means they're fully compliant when a second, local step still applies depending on where they're based.

Checking your specific city's requirements alongside the state process is worth the extra 20 minutes it takes.

What's the Actual Next Step From Here?

Bottom line: Start the CDTFA online registration before your next wholesale purchase, not after — a $2,500 lot bought without a resale certificate on file means paying roughly $180-$270 in avoidable California sales tax that a registered reseller wouldn't owe. Everything covered in this article points to the same practical sequence: register with CDTFA, get your seller's permit number, fill out a resale certificate, and keep it on hand for every supplier purchase going forward.

That's the whole mechanical process behind how to get a resale number in California, and most of it happens in a single sitting online.

Once You're Registered

The permit itself is just the entry ticket — what you do with it day to day is where the real work is.

A seller who registers, gets their number, and then starts sourcing consistently from wholesale liquidators or resale lot marketplaces needs the same discipline covered earlier in this guide: file every return on time, even the $0 ones, and keep resale-certificate purchases limited to genuine inventory.

Sellers running multiple marketplaces at once — Poshmark, eBay, Depop — often find that managing listings across all of them becomes the bigger operational lift once sourcing and tax registration are handled, which is a separate problem from the one this article solves.

For more on the compliance side, the Closo blog hub covers related topics like sales tax nexus for multi-state sellers and how resale certificates work when buying from out-of-state liquidators.