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What’s the difference between TPT and EIN?

Posted by Brandon Keim | May 19, 2025 | 0 Comments

Beyond financial numbers, one of the confusing parts of navigating both the federal and Arizona tax systems is the abundance of acronyms and numbers. Two examples of these acronyms are TPTs and EIN.

Many businesses and organizations will have both. They each serve an important but different purpose.

What is a TPT?

In Arizona, the transaction privilege tax (TPT) is a tax on businesses for the privilege of doing business in the Grand Canyon State. It is sometimes incorrectly referred to as a sales tax.

Businesses must acquire a TPT license from the Arizona Department of Revenue (ADOR) when they sell goods or engage in certain types of services. This is in addition to any business or occupational licenses the state, counties, or cities may require.

For businesses with multiple locations in Arizona, they can decide between having a single TPT license or a license for each location. Part of this decision may come down to local tax rates. While the ADOR collects all taxes, local tax rates can vary.

What is an EIN?

An Employee Identification Number (EIN) is a federal tax ID. Businesses, individuals, tax-exempt organizations, and entities, such as LLCs and estates, can all apply for an EIN.

Businesses should only have one EIN. The exception is if someone buys a previously existing business. In this situation, the new owner should apply for a new EIN.

One increasingly common use of EINs is for workers who freelance. They can provide clients with their EIN instead of their social security number.

Before an organization can apply for an EIN, they must first be legally recognized in their state of business. In Arizona, this means that a business must first register with the ADOR and get a TPT license. Once a business has a TPT license and satisfies other requirements under Arizona law, it can apply for an EIN.

Get Help From an Experienced Arizona TPT Attorney

If you have questions about TPTs, EINs, or other tax acronyms, call Senior Partner, Tax Controversy Attorney, and former IRS attorney Brandon A. Keim at (602) 200-7399 or contact him online to discuss your options.

About the Author

Brandon Keim
Brandon Keim

A Certified Tax Law Specialist, CPA, partner at Frazer Ryan Goldberg & Arnold LLP, and former Senior IRS Trial Attorney, Brandon Keim holds an LL.M. in Taxation from Georgetown University Law Center.

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The act of visiting or communicating with Brandon A. Keim via this website or by email does not constitute an attorney-client relationship. Communications from non-clients via this website are not subject to client confidentiality or attorney-client privilege. Further, the articles, discussion, commentary, forms and sample documentation contained in this website are offered as general guidance only and are not to be relied upon as specific legal advice. For legal advice on a specific matter, please consult with an attorney who is knowledgeable and experienced in that area. Attorneys listed in this website practice only in the jurisdictions in which they are admitted. This website is governed by the Arizona Rules of Professional Conduct.

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