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openaccountants/skills/arizona-sales-tax.md
arizona-sales-tax.md176 lines5.6 KB
v20State
1---
2name: arizona-sales-tax
3description: Use this skill whenever asked about Arizona sales tax, Arizona Transaction Privilege Tax (TPT), Arizona use tax, Arizona tax nexus, or any request involving Arizona state-level consumption taxes. Trigger on phrases like "Arizona sales tax", "AZ sales tax", "TPT", "Transaction Privilege Tax", "Arizona DOR", or any request involving Arizona TPT compliance. CRITICAL -- Arizona has a Transaction Privilege Tax on the SELLER, not a traditional sales tax. ALWAYS load us-sales-tax first.
4version: 2.0
5---
6 
7# Arizona Transaction Privilege Tax (TPT) Skill v2.0
8 
9## Section 1 -- Quick reference
10 
11| Field | Value |
12|---|---|
13| Jurisdiction | Arizona, United States |
14| Jurisdiction code | US-AZ |
15| Tax type | Transaction Privilege Tax (TPT) -- NOT a traditional sales tax; tax is on the SELLER |
16| State TPT rate | 5.6% (retail classification) |
17| Local add-on range | 0% -- 5.6% (city + county) |
18| Maximum combined rate | ~11.2% |
19| Sourcing | Origin-based for most TPT classifications |
20| Economic nexus | $100,000 in gross proceeds or gross income (revenue only) |
21| Primary legislation | A.R.S. Title 42, Chapter 5 |
22| Tax authority | Arizona Department of Revenue (ADOR) |
23| Filing portal | https://www.aztaxes.gov |
24| SST member | No |
25| Federal framework skill | us-sales-tax |
26| Skill version | 2.0 |
27 
28**CRITICAL: Arizona TPT is a tax on the privilege of doing business in Arizona, imposed on the SELLER. It is NOT a sales tax on the buyer, though sellers typically pass it through.**
29 
30---
31 
32## Section 2 -- Required inputs and refusal catalogue
33 
34### Required inputs
35 
36| # | Question | Why it matters |
37|---|----------|----------------|
38| 1 | Arizona TPT license number? | Required for filing |
39| 2 | Filing frequency? | Monthly, quarterly, annual |
40| 3 | Nexus type? | $100K threshold |
41| 4 | Business classification? | Different TPT rates by classification |
42| 5 | Contractor? | Prime contracting has special 65/35 split rules |
43| 6 | Sell into multiple cities? | City TPT rates vary significantly |
44 
45### Refusal catalogue
46 
47**R-AZ-1 -- Prime contracting classification.** 65/35 split between real property and materials is complex. Escalate.
48 
49---
50 
51## Section 3 -- Transaction pattern library
52 
53### 3.1 Retail classification (5.6% state)
54 
55| Pattern | Taxable? | Notes |
56|---|---|---|
57| General TPP | TAXABLE | Retail classification |
58| Clothing | TAXABLE | No exemption |
59| Grocery food (unprepared) | EXEMPT | A.R.S. §42-5061(A)(1) |
60| Prepared food | TAXABLE | |
61 
62### 3.2 SaaS and digital goods
63 
64| Pattern | Taxable? | Notes |
65|---|---|---|
66| Canned software (physical or download) | TAXABLE | TPP |
67| SaaS (cloud-hosted) | TAXABLE | Arizona treats SaaS as taxable |
68| Digital goods | TAXABLE | |
69 
70### 3.3 Services
71 
72| Pattern | Taxable? | Notes |
73|---|---|---|
74| Professional services | NOT TAXABLE | |
75| Job printing | TAXABLE | Separate classification |
76| Restaurants/bars | TAXABLE | Restaurant classification |
77| Transient lodging | TAXABLE | Transient lodging classification |
78| Personal property rental | TAXABLE | Rental classification |
79| Prime contracting | TAXABLE | 65/35 rule applies |
80 
81### 3.4 Exemptions
82 
83| Pattern | Status |
84|---|---|
85| Grocery food | EXEMPT |
86| Prescription drugs | EXEMPT |
87| Manufacturing machinery (directly in manufacturing) | EXEMPT |
88| Resale | EXEMPT |
89| Interstate commerce | EXEMPT |
90 
91---
92 
93## Section 4 -- Rate lookup
94 
95### 4.1 TPT classifications and state rates
96 
97| Classification | State rate |
98|---|---|
99| Retail | 5.6% |
100| Mining | 3.125% |
101| Utilities | 5.6% |
102| Telecommunications | 5.6% |
103| Transient lodging | 5.5% |
104| Restaurants/bars | 5.6% |
105| Contracting (prime) | 5.6% |
106| Rental of TPP | 5.6% |
107 
108---
109 
110## Section 5 -- Classification rules
111 
112### 5.1 TPT is on the seller
113 
114TPT is a privilege tax on the seller for conducting business. The buyer is NOT legally liable. Most sellers pass the amount through to buyers.
115 
116### 5.2 Model City Tax Code
117 
118Arizona cities adopt the Model City Tax Code with local modifications. City rates and exemptions can vary significantly.
119 
120---
121 
122## Section 6 -- Return form and filing
123 
124Filed via AZTaxes.gov. Single return covers state + county + city TPT.
125 
126---
127 
128## Section 7 -- Thresholds, penalties, and deadlines
129 
130### 7.1 Economic nexus
131 
132| Parameter | Value |
133|---|---|
134| Threshold | $100,000 in gross proceeds or gross income |
135| Transaction count | None |
136| Effective date | October 1, 2019 |
137 
138---
139 
140## Section 8 -- Edge cases
141 
142### EC1 -- Prime contracting
143 
144**Situation:** Contractor builds a house.
145**Resolution:** Prime contracting classification. 65% of contract price treated as real property improvement (not taxable); 35% treated as materials (taxable at TPT rate). Complex -- escalate.
146 
147---
148 
149## Section 9 -- Test suite
150 
151### Test 1 -- Retail sale in Phoenix
152 
153**Input:** $500 item. Combined rate: ~8.6%.
154**Expected:** Tax = ~$43.
155 
156### Test 2 -- Grocery food exempt
157 
158**Input:** $200 groceries.
159**Expected:** Tax = $0. Grocery food exempt in AZ.
160 
161---
162 
163## Section 10 -- Prohibitions
164 
165- NEVER call Arizona's tax a "sales tax" without noting it is a Transaction Privilege Tax on the SELLER.
166- NEVER forget that city TPT rates and exemptions can differ from the state.
167- NEVER apply destination-based sourcing for most TPT classifications -- Arizona is generally origin-based.
168- NEVER treat grocery food as taxable -- it is exempt in Arizona.
169- NEVER compute any number -- all arithmetic is handled by the deterministic engine, not Claude.
170 
171---
172 
173## Disclaimer
174 
175This skill is provided for informational and computational purposes only and does not constitute tax, legal, or financial advice. All outputs must be reviewed by a qualified professional before filing.
176 

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Use this skill whenever asked about Arizona sales tax, Arizona Transaction Privilege Tax (TPT), Arizona use tax, Arizona tax nexus, or any request involving Arizona state-level consumption taxes. Trigger on phrases like "Arizona sales tax", "AZ sales tax", "TPT", "Transaction Privilege Tax", "Arizona DOR", or any request involving Arizona TPT compliance. CRITICAL -- Arizona has a Transaction Privilege Tax on the SELLER, not a traditional sales tax. ALWAYS load us-sales-tax first.

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