United StatesServices Registrations & licencesSeller’s permit registration

Registrations & licences

Seller’s permit registration for US businesses

The state sales-tax permit, registered where nexus says you need it — with the resale-certificate layer explained.

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What is seller’s permit registration?

The state sales-tax permit, registered where nexus says you need it — with the resale-certificate layer explained.

A seller's permit — also called a sales tax permit, sales tax license or resale permit depending on the state — is the state Department of Revenue's authorization to collect sales tax from customers and remit it on a schedule the state sets. It is a state-level instrument, not a federal one: 45 states levy a general sales tax, and each runs its own permit process, its own filing frequency, and its own rules for what counts as a taxable sale in that state. A business that starts selling into a new state without the permit registered first is collecting tax it has no legal standing to collect, or worse, not collecting tax it owes — both are compliance problems that surface at the state's audit, not at checkout.

The trigger for needing a permit in a given state is nexus — a connection to that state substantial enough that the state can require you to collect its tax. Nexus comes in two forms: physical (an office, a warehouse, inventory sitting in a fulfillment center, an employee working remotely from that state) and economic (crossing a state-set dollar or transaction-count threshold in sales to customers there, even with zero physical presence — the rule every state adopted after the 2018 Wayfair decision). Figuring out which states you have nexus in, and when you crossed an economic threshold, is a separate exercise from registering the permit itself; if that mapping hasn't been done yet, it belongs at the nexus-analysis-registration service, because registering in the wrong state, or missing the state where nexus actually exists, both create the same downstream problem — a permit filed against facts nobody checked.

Who does what

Your CapEasy teamSeller’s permit registration, the reconciliations and reporting behind it, and the questions list that keeps it honest.
Your CPA or enrolled agentEverything that carries a licence in United States — rendered exactly as written: issue compilation, review or audit reports — those are restricted to licensed cpa firms.
YouOne conversation with one named person, and the decisions that are genuinely yours.

Seller’s permit registration in United States

A seller's permit fee runs from free to a few dollars — except in California, where it can be a security deposit instead of a fee

Most states charge nothing to register: Florida is free online (a $5 paper-filing fee applies only if you skip the online portal), and a large majority of the 45 sales-tax states have no registration fee at all. A handful charge a small flat amount — Arizona $12, Wisconsin $20, Connecticut $100. California is the outlier and the one most often misunderstood: CDTFA does not charge a registration fee, but it can require a security deposit, set case-by-case at the time of application based on the applicant's estimated monthly taxable sales, capped at $50,000 per person. It is not a fixed small charge, and whether one applies at all depends on CDTFA's own review of the figures submitted — a business estimating high monthly volume in California should expect that question, not a flat number quoted in advance.

Economic nexus thresholds are set state by state, and crossing one creates a registration obligation retroactive to the crossing date

Every sales-tax state now taxes remote sellers once they cross a state-set threshold — commonly a dollar figure in annual sales into that state, sometimes paired with a transaction-count trigger, though several states have dropped the transaction-count leg in recent years. The obligation to register begins on the date the threshold is crossed, not the date the business notices — which is why nexus mapping needs to happen before a permit application, not as an afterthought once a state sends a notice.

A resale certificate is only valid while the underlying permit is active, and only for goods genuinely bought for resale

Presenting a resale certificate to a supplier is a legal representation that the goods purchased will be resold and taxed once at the point of retail sale, not consumed by the buyer. A certificate presented for goods that were never resold, or presented after the underlying permit lapsed, is invalid on its face — the tax that should have been collected once at the point of sale ends up collected nowhere.

Filing frequency is assigned by the state at registration and can change based on actual sales volume

The estimated taxable-sales figure on the application is what most states use to assign monthly, quarterly or annual filing frequency to the new account. States commonly review and reassign frequency after actual filing history builds up, so a business that under- or overstated its estimate at registration should expect the state to correct the cadence once real numbers are on file, rather than treating the original assignment as fixed.

What your CPA or enrolled agent receives from us

  • The completed seller's permit application packet for the state Department of Revenue — entity details, EIN, NAICS/activity code and the taxable-sales estimate — ready for the state's online portal.
  • A nexus-basis note stating which trigger (physical presence, or the economic threshold and the date it was crossed) supports registering in this state, so the application and the underlying facts agree.
  • The California security-deposit question flagged and answered directly, where the state is California — the estimated monthly taxable-sales figure that CDTFA will review, submitted with the application rather than surfaced as a surprise afterward.
  • A resale certificate drafted and ready to issue to suppliers once the permit is active, referencing the live permit number.
  • A filing-frequency and due-date calendar entry once the state assigns the account's cadence, so the first return isn't a scramble.
  • A copy of the state-issued permit number and certificate, filed alongside the entity's other registration records.

Questions worth asking before you start

Who actually does the work — a person or an AI tool?

A named person on our team owns your file and reviews everything that leaves it. Software does a real share of the grinding underneath it — coding, matching, flagging the obvious gaps — but nothing regulated happens without a person’s judgement, and nothing here is signed or filed by an algorithm.

Is there a filing or lodging step here?

No — seller’s permit registration is operational work inside your books, not something submitted to IRS. Where a filing does sit downstream of it, inside registrations & licences more broadly, that stays with your CPA or enrolled agent, never with us.

Which software do you work in?

Whatever you already run. Most commonly QuickBooks, Xero, NetSuite, Sage, Zoho Books and a handful of others — we work inside your system rather than moving you onto one of our own.

How does this actually start?

A short, free read-only look at what you already have, and a written note on what we found. A scoping call decides the size of the engagement — nothing here commits you to anything.

What does it cost?

There is no published price for seller’s permit registration — it depends on volume, how many entities are involved, and how far behind the books are. We quote after the read-only review, which is free.

How does this fit with the rest of registrations & licences?

Seller’s permit registration sits inside registrations & licences, alongside EIN registration, State payroll registrations, FDA food facility registration. Most clients end up buying the category as a whole rather than one leaf at a time, but starting narrow is fine.

What's the difference between a seller's permit and a business license?

A business license is issued by a city or county and gives legal right to operate in that jurisdiction, regardless of what you sell. A seller's permit is issued by the state Department of Revenue and is specifically about collecting and remitting sales tax on taxable sales. Most businesses selling taxable goods or services need both, and they're separate applications to separate agencies.

Do I need a seller's permit in every state I ship to?

Only in states where you have nexus — a physical presence, or sales into that state past its economic nexus threshold. Shipping an occasional order to a state where you have neither doesn't create an obligation. Mapping which states cross that line for your specific sales volume is the nexus-analysis-registration service.

How much does a seller's permit cost?

Most states charge nothing. A minority charge a small flat fee — figures we've confirmed include Arizona $12, Wisconsin $20 and Connecticut $100. California doesn't charge a registration fee but can require a security deposit instead, set case-by-case by CDTFA based on your estimated monthly taxable sales, capped at $50,000 per person.

Why would California ask for a security deposit and other states don't?

CDTFA can require a deposit as security against future tax liability, reviewed at the time you apply and based on the sales volume you estimate. It isn't automatic for every applicant and isn't a fixed number — it's a case-by-case figure capped at $50,000 per person, not a small fee like the flat charges some other states apply.

What is a resale certificate and do I need one?

It's a document a permit holder presents to its own suppliers to buy inventory tax-free, on the basis that sales tax will be collected once when the goods are eventually sold to the end customer. If you're buying inventory to resell and paying tax on that purchase, you're likely paying twice — once as your supplier's customer, once as your own customer's vendor. The certificate is only valid while your underlying permit is active.

Can I use a resale certificate to buy things for my own business use, like office supplies?

No. A resale certificate is a legal representation that the goods will be resold, not consumed by your business. Using it for equipment, supplies or anything you keep and use yourself misrepresents the purchase and puts the certificate's validity at risk — it covers inventory intended for resale only.

How does the state decide how often I file sales tax returns?

Based on the taxable-sales estimate on your application, and later on your actual filing history. Higher-volume sellers are typically assigned monthly filing, lower-volume sellers quarterly or annual. States commonly revisit and reassign frequency once real numbers are on file, so an estimate that turns out low or high at registration usually gets corrected once actual sales are reported.

What happens if I register in the wrong state, or miss the state where I actually have nexus?

Registering in a state where you don't have nexus wastes a filing obligation you didn't need; missing a state where you do have nexus leaves tax collected nowhere while the liability keeps accruing from the date the threshold was crossed. Both come from the same root cause — registering before the nexus facts are actually mapped, which is why we tie every permit registration to a stated nexus basis.

Do I need a CPA to register a seller's permit?

No. Filing the state Department of Revenue application is an unregulated administrative task — no CPA or attorney license is required, which is why commercial services handle it routinely. What does sit with your CPA is any judgment call on taxability of a specific product or service, or advice on your broader tax position.

What information do I need to have ready before applying?

Your entity's legal name and structure, EIN, physical and mailing address, NAICS or state activity code, the names of owners or responsible parties, and an estimate of expected taxable sales in that state. If the entity isn't formed and doesn't have an EIN yet, both of those need to happen first.

How long does registration actually take once it's submitted?

Most states process online applications same-day to about two weeks; exact timing depends on the state's own portal and review queue. That's the state's processing time, not a figure we set — check the specific state's Department of Revenue for its current turnaround.

Does having a seller's permit in one state mean I'm automatically registered everywhere I sell?

No. Each state's permit is separate and only covers that state. Selling into a new state means checking your nexus position there and, if it's crossed, registering separately — permits don't transfer or apply across state lines.

Your CapEasy experts

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Talk to the people who handle this work every day — no call centre, no hand-offs.

Ayush Joshi

Ayush Joshi

Co-Founder

Ex-OYO and Tenaciousfly. 7+ years in business development, strategic acquisitions, financing and debt syndication.

Aditya Jain

Aditya Jain

Co-Founder

Ex-Bank of America. 4+ years in investment banking, EU & Indian compliances, ESG compliances, and project management.

Manav Raval

Virtual CFO & Tax Specialist

Section 80-IAC, tax planning and startup compliance. Previously at Toyota Motor Corporation and Jaguar Land Rover.

Ayush Faldu

Virtual CFO & Tax Specialist

Financial strategy, budgeting and cash flow — a CFO’s judgement, monthly.

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