Arizona sales tax nexus is triggered two ways: by any physical presence in the state, or by more than $100,000 in direct sales to Arizona customers in the current or previous calendar year. Once either applies, you have 30 days to register for a Transaction Privilege Tax (TPT) license and start remitting. Arizona’s “sales tax” is technically a tax on the seller’s privilege of doing business in the state rather than a tax on the buyer’s purchase, which means the seller, not the customer, is legally on the hook.1Arizona Department of Revenue. Transaction Privilege Tax The base state rate is 5.6%, plus applicable county and city rates.2Arizona Department of Revenue. Transaction Privilege and Other Tax Rate Tables
What Counts as Physical Presence
The clearest way to establish nexus is a tangible footprint. An office, a store, or a warehouse qualifies. So does inventory sitting in a third-party fulfillment center: if your goods are on Arizona soil, you have a physical presence even if you never signed a lease.3Arizona Department of Revenue. Nexus Program
People in the state do the same thing. Employees, independent contractors, or sales representatives soliciting orders in Arizona create a filing duty. The Department of Revenue has said that even “the most minimal connections” are enough.3Arizona Department of Revenue. Nexus Program
Trade Shows
Trade shows catch out-of-state sellers off guard. If you sell at an Arizona show the kinds of products you sell at home, Arizona does not treat the visit as transitory. You need a seasonal TPT license and you owe tax on every sale made at the show. Your physical nexus ends when you leave, and in-state trade show sales do not count toward the $100,000 economic threshold.4Arizona Department of Revenue. FAQ – Remote Sellers and Marketplace Facilitators A visit that produces no gross receipts and is not part of regular business activity generally does not create nexus, but the line is thin and the Department reads it aggressively. If a trip in Arizona generates revenue, assume you owe.
The $100,000 Economic Threshold
A remote seller with no physical footprint still owes TPT once gross proceeds or gross income from Arizona customers exceed $100,000 in the current or previous calendar year. The threshold has been $100,000 since 2021, after phasing down from $200,000 in 2019 and $150,000 in 2020.5Arizona Legislature. Arizona Code 42-5044 – Nexus; Out-of-State Businesses; Threshold; Applicability
A few details matter when you’re measuring:
- No transaction count. Some states add a 200-transaction trigger. Arizona uses only the dollar figure.
- Gross means gross. Total revenue from Arizona sales, before deductions for materials, labor, or shipping.
- Exempt sales still count toward the threshold even though they would not be taxable.
- Marketplace-facilitated sales do not count. Only sales from your own website or other direct channels push you toward the $100,000.5Arizona Legislature. Arizona Code 42-5044 – Nexus; Out-of-State Businesses; Threshold; Applicability
You Have 30 Days After Crossing
Once your direct sales pass $100,000, you have 30 days to register, and you must begin remitting TPT in the month following that 30-day window. You then continue collecting and remitting for the rest of that calendar year and through the entire following year.6Arizona Department of Revenue. Economic Threshold
If You Sell Only on Amazon, Etsy, or Walmart
A marketplace facilitator is a platform that lists products, collects payment, and assists with fulfillment for third-party sellers. Under A.R.S. ยง 42-5044, a facilitator that exceeds $100,000 in combined Arizona sales, including sales on behalf of its sellers, must collect and remit TPT on those transactions.5Arizona Legislature. Arizona Code 42-5044 – Nexus; Out-of-State Businesses; Threshold; Applicability
If you sell only through a facilitator that is already collecting TPT, you do not need your own Arizona TPT license and you do not file or remit on those sales. The facilitator handles it.7Arizona Department of Revenue. Out-of-State Sellers
The obligation shifts the moment you add a direct channel. Running your own website alongside a Shopify, Etsy, or Amazon storefront means you must track your non-facilitated Arizona sales separately. If those direct sales cross $100,000 on their own, you register and collect TPT on them. The platform-facilitated sales remain the facilitator’s problem either way.
Getting Licensed
Every business with Arizona nexus needs a TPT license before making taxable sales. Registration uses the Joint Tax Application (Form JT-1), which handles both state and municipal licensing. You can apply online through AZTaxes.gov, through the Arizona Business One Stop portal, by mail, or in person at a Department of Revenue office. Online filing is the fastest route.8Arizona Department of Revenue. Applying for a TPT License
You will need a federal EIN (or SSN for sole proprietors), the legal business name, the date you began Arizona activity, your NAICS code, and ownership details for partners or officers. List every location where you do business so the correct local authorizations are added.
The state license costs $12 per location. Businesses under common ownership can consolidate locations under one license number and file a single return.9Arizona Department of Revenue. TPT License If you operate in a city or town that imposes its own municipal privilege tax, a municipal license is also required, costing up to $50 depending on the jurisdiction.10Arizona Legislature. Arizona Code 42-5005 – Transaction Privilege Tax and Municipal Privilege Tax Licenses; Fees; Renewal; Revocation; Violation; Classification Seasonal sellers moving between events pay the $12 state fee once, but a separate city fee applies for each municipality where they don’t already hold a license.
How Often You File
The Department assigns filing frequency based on estimated annual combined state, county, and municipal tax liability:
- Annual, for less than $2,000 in estimated annual liability
- Quarterly, for $2,000 to $8,000
- Monthly, for more than $8,00011Arizona Department of Revenue. TPT Filing Frequency
Returns go on Form TPT-2 through AZTaxes.gov. You enter gross receipts for the period, apply exemptions and deductions, and categorize income by the business codes assigned at registration. Payment is by electronic transfer or credit card inside the portal.12Arizona Department of Revenue. General Instructions Transaction Privilege, Use, and Severance Tax Return (TPT-2) Electronic filing is mandatory for businesses with more than one location, and TPT records must be kept for at least four years from the due date or the date filed, whichever is later.13Arizona Department of Revenue. Business Record Keeping
What Happens If You Miss a Deadline
Late filing and late payment carry separate penalties, and they stack.
A late return draws 4.5% of the tax due for each month or partial month it stays unfiled, with a $25 minimum per return. The late-filing penalty caps at 25% of the tax due or $100, whichever is greater. A late payment adds 0.5% of the unpaid tax per month, capping at 10%.14AZTaxes.gov. FAQ
If the Department sends a notice demanding a return and you still don’t file, an additional 25% penalty (or $100, whichever is greater) layers on top of the late-filing penalty. Interest accrues on the unpaid balance from the original due date. For a business behind on multiple periods, the numbers compound quickly.
Penalty abatement is possible if you can show reasonable cause and that the failure was not due to willful neglect. The Department reviews requests case by case, giving the most weight to things like natural disasters, serious illness, or system failures that prevented timely electronic filing. Not knowing about the requirement generally doesn’t qualify.
If You Should Have Been Collecting All Along
Sellers who realize they’ve had Arizona nexus for a while and were not collecting have a way back in without the full penalty exposure. The Department of Revenue’s Voluntary Disclosure and Compliance Program lets you apply anonymously. If accepted, penalties are abated after you pay the tax and interest, and the look-back period is generally limited to four years from the application date.15Arizona Department of Revenue. Voluntary Disclosure and Compliance Program
Both unlicensed businesses that should have been collecting and licensed businesses with unreported or under-reported activity are eligible. You can only participate once per tax type, and you’re out if the Department has already contacted you about the tax in question. Any prior collection actions have to be resolved first.