Sales Tax ID Number, Seller’s Permit & Business Registration
Apply online for a state sales tax ID number, seller’s permit, resale certificate, or federal EIN — with registration guidance for all 50 states.
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A private, non-government filing service. Secure application, plain-English instructions, and state-by-state requirements in one place.
What you can register for
Most new businesses need more than one number. A state sales tax ID lets you collect and remit sales tax, a seller’s permit authorizes taxable retail sales, a resale certificate lets you buy inventory tax-free, and a federal EIN identifies the business to the IRS. Which ones apply depends on your state, your entity type, and what you sell.
State sales tax ID number
Register with your state revenue agency so you can legally collect sales tax. Requirements, thresholds, and agency names differ by state — start with our sales tax ID guides or jump straight to your state.
Seller’s permit
Many states call the same authorization a seller’s permit, vendor’s license, or transaction privilege tax license. See the seller’s permit guides for what your state issues and when registration is required.
Resale certificate
A resale certificate lets you purchase inventory without paying sales tax at the point of purchase. Rules on expiration, acceptance, and out-of-state use vary — see the resale certificate guides.
Federal tax ID (EIN)
An EIN is issued by the IRS and is separate from any state registration. Compare it with other taxpayer numbers in tax ID number explained, or go to the federal tax ID application.
Sales tax registration by state
Sales tax is administered state by state. Select your state below for its registration page, or browse every state guide in sales tax registration guides. If you sell into states where you have no physical presence, check the economic nexus rules first — they determine where you are actually required to register.
- Alabama sales tax registration
- Alaska sales tax registration
- Arizona sales tax registration
- Arkansas sales tax registration
- California sales tax registration
- Colorado sales tax registration
- Connecticut sales tax registration
- Delaware sales tax registration
- Florida sales tax registration
- Georgia sales tax registration
- Hawaii sales tax registration
- Idaho sales tax registration
- Illinois sales tax registration
- Indiana sales tax registration
- Iowa sales tax registration
- Kansas sales tax registration
- Kentucky sales tax registration
- Louisiana sales tax registration
- Maine sales tax registration
- Maryland sales tax registration
- Massachusetts sales tax registration
- Michigan sales tax registration
- Minnesota sales tax registration
- Mississippi sales tax registration
- Missouri sales tax registration
- Montana sales tax registration
- Nebraska sales tax registration
- Nevada sales tax registration
- New Hampshire sales tax registration
- New Jersey sales tax registration
- New Mexico sales tax registration
- New York sales tax registration
- North Carolina sales tax registration
- North Dakota sales tax registration
- Ohio sales tax registration
- Oklahoma sales tax registration
- Oregon sales tax registration
- Pennsylvania sales tax registration
- Rhode Island sales tax registration
- South Carolina sales tax registration
- South Dakota sales tax registration
- Tennessee sales tax registration
- Texas sales tax registration
- Utah sales tax registration
- Vermont sales tax registration
- Virginia sales tax registration
- Washington sales tax registration
- West Virginia sales tax registration
- Wisconsin sales tax registration
- Wyoming sales tax registration
Five states — Alaska, Delaware, Montana, New Hampshire and Oregon — impose no general statewide sales tax. Businesses there may still face local taxes, licensing, or registration in other states where they have nexus.
Federal tax ID numbers and EIN applications
An Employer Identification Number is the federal counterpart to your state sales tax registration. Corporations, partnerships, most multi-member LLCs, and any business with employees generally need one; sole proprietors sometimes do not.
- Federal tax ID application — start a federal tax ID application
- EIN application by entity type — requirements by entity type
- Verify an EIN or state ID number — confirm an existing number
- EIN application guides — Form SS-4, responsible party rules, daily limits, and foreign owners
- Tax ID number guides — how EIN, ITIN, SSN and state tax IDs differ
The IRS issues EINs directly at no charge. This site is a private filing service; using it is optional.
Business formation, licenses and compliance
Tax registration is one step in setting up a business. Entity formation, name registration, and local licensing usually happen alongside it, and the order matters — several states will not issue a sales tax number until the entity exists.
- Start a business guides — the full sequence, from entity choice to first filing
- LLC formation and corporation formation — formation steps, costs, and filing agencies
- DBA and fictitious name — when a fictitious name is enough
- Business license requirements — state, county, and city requirements
- BOI reporting — current beneficial ownership filing position
Sales tax rates, forms and official lookups
Registration determines whether you collect. Rates determine how much. These reference tables cover state, county, city, and municipal rates for the highest-volume states, and the directory below links to each state’s own filing portal.
- Pennsylvania state, county, city and municipal tax rate table
- California state, county, city and municipal tax rate table
- Texas state, county, city and municipal tax rate table
- Georgia state, county, city and municipal tax rate table
- Secretary of State portal directory — official state agency portals and phone numbers
- Site index — every page on this site
Also useful for online sellers: marketplace facilitator rules, Shopify sales tax, and drop shipping tax.
Latest guides
New state-by-state registration guides, EIN explainers, and compliance updates, sourced from official agency material.
- How to Form a Corporation in Nevada: Filing Steps and Costs
- Single-Member LLC vs Sole Proprietorship: Tax ID Requirements
- How Many EINs Can One Responsible Party Get Per Day?
- Can a Foreign Owner Get an EIN Without an SSN?
- Form SS-4 Explained: How to Complete an EIN Application
- Start a Business in Florida: Licenses, Tax IDs, and Permits
- Tax ID Number vs EIN vs ITIN: Which One You Need
- Maine Sales Tax ID: Registration and Reporting Basics
- Sales Tax ID vs Sales Tax Permit: Are They the Same?
- Using an Out-of-State Resale Certificate: When It Is Accepted
Sales tax and business tax ID guides — browse the full archive of sales tax, seller’s permit and business tax ID guides.
Common questions
Is a sales tax ID the same as a seller’s permit?
Not always. Some states issue one credential that serves both purposes; others assign an account number separately from the permit that authorizes sales. See Sales tax ID vs sales tax permit for how the terms are used state by state.
Do I need an EIN and a state sales tax number?
Frequently yes — they are issued by different authorities for different purposes. The EIN comes from the IRS; the sales tax number comes from your state revenue agency. Start with Tax ID number vs EIN vs ITIN.
I sell online. Where do I have to register?
Where you have nexus, which can be created by physical presence, inventory storage, or crossing a state’s economic threshold. The economic nexus guides explain the current thresholds.
Does a resale certificate expire?
It depends on the state — some never expire, some renew annually, some carry a permit-specific date. See Do resale certificates expire?
Can a foreign owner get a US tax ID?
Often yes, without a Social Security number, though the application method matters. See Can a foreign owner get an EIN without an SSN?
More answers on the FAQ page, or contact us if your situation is not covered.
Filing with confidence
What you can expect when you submit an application through this site.
Reviewed before submission
Applications are checked for the entity, address, and classification details that most often cause state rejections.
Secure handling
Information is submitted over an encrypted connection and used only to prepare and file your registration.
All 50 states
State-specific requirements, agency names, and filing routes — including states that issue no general sales tax permit.
Support that answers
Questions about status, documents, or what your state actually requires? Contact us.
This website is a private, non-government third-party filing service. It is not affiliated with the IRS or with any state revenue agency. An EIN can be obtained directly from the IRS, and state registrations can be filed directly with each state, in both cases at no charge. Our fee is for document preparation, review, and submission. See the privacy policy for how your information is handled.