Wy Sales Tax

Wyoming Sales and Use Tax Skill

General reference only. This skill is general tax/accounting reference material for AI-assisted workflows. It has not been reviewed for any specific person's facts, documents, elections, deadlines, residency, filing status, or local procedures. Do not rely on it to file, pay, amend, or take a tax position without review by a qualified professional in the relevant jurisdiction.

Skill Metadata

Confidence Tier Definitions

• [T1] Tier 1 -- Deterministic. Apply exactly as written. No reviewer judgement required.
• [T2] Tier 2 -- Reviewer Judgement Required. Claude flags the issue and presents options. A licensed CPA, EA, or tax attorney must confirm before filing.
• [T3] Tier 3 -- Out of Scope / Escalate. Do not guess. Escalate to a licensed tax professional.

Step 0: Client Onboarding Questions

Before proceeding with any Wyoming sales tax analysis, collect the following from the client: [T1]

If the client cannot answer questions 1-4, STOP and gather this information before proceeding. [T1]

Step 1: Tax Rate Structure

1.1 State Sales Tax Rate

Wyoming imposes a state sales tax of 4.00% on the retail sale of tangible personal property and certain services. [T1]

Statute: W.S. §39-15-104.

1.2 No State Income Tax [T1]

Wyoming has no state individual or corporate income tax. Sales tax, mineral severance taxes, and property taxes are the primary revenue sources. [T1]

1.3 Local Sales Taxes [T1]

• Counties may impose additional sales tax up to 2.00% (general purpose + specific purpose). [T1]
• Most counties impose some form of local option tax. [T1]
• Combined rates range from 4.00% to 6.00%. [T1]
• Local taxes are administered by the Wyoming DOR. [T1]

1.4 Sourcing [T1]

Wyoming uses destination-based sourcing. [T1]

As an SST member, Wyoming follows SSUTA sourcing rules. [T1]

Step 2: Transaction Classification Rules

2.1 Grocery Food -- EXEMPT [T1]

• Unprepared grocery food: exempt. W.S. §39-15-105(a)(viii). [T1]
• Prepared food: taxable at full combined rate. [T1]
• Candy: taxable. [T1]
• Soft drinks: taxable. [T1]
• Wyoming follows SST food definitions. [T1]

2.2 Clothing [T1]

• Clothing is fully taxable. No exemption. [T1]

2.3 Prescription Drugs and Medical [T1]

• Prescription drugs: exempt. W.S. §39-15-105(a)(iv). [T1]
• OTC drugs: taxable. [T1]
• DME: exempt with prescription. [T1]
• Prosthetics: exempt. [T1]

2.4 Services [T2]

Wyoming taxes a limited number of services:

• Taxable services include: Intrastate telecommunications, public utilities, lodging, admissions/amusements. [T2]
• Exempt services include: Professional services, personal care, repair labor, cleaning, landscaping, IT services. [T2]
• Wyoming has a narrow service tax base focused on TPP and a few enumerated services. [T2]

2.5 SaaS and Digital Goods [T2]

• SaaS: Generally not taxable in Wyoming. Not considered TPP or an enumerated service. [T2]
• Canned software (physical): Taxable. [T1]
• Canned software (electronic delivery): Generally not taxable under current law. [T2]
• Digital downloads: Generally not taxable. Wyoming has not broadly adopted digital goods taxation. [T2]
• Custom software: Exempt. [T2]

2.6 Manufacturing [T2]

• Wyoming does NOT have a broad manufacturing equipment exemption. [T2]
• Some equipment may qualify under specific incentive programs. [T2]
• Raw materials for resale: exempt under resale exemption. [T1]

2.7 Mineral and Energy Industry [T2]

• Wyoming's economy is heavily reliant on mineral extraction (coal, oil, gas, trona, uranium). [T1]
• Mining and drilling equipment: generally taxable at the full combined rate. [T2]
• Mineral severance taxes (coal, oil, gas, trona) are separate from sales tax. [T1]
• Wind energy equipment: may qualify for specific exemptions under economic development incentives. [T2]
• Flag for reviewer: Mineral/energy tax compliance involves multiple tax types. Escalate complex scenarios. [T3]

2.8 Agricultural [T1]

• Farm and ranch machinery and equipment: exempt. W.S. §39-15-105(a)(vi). [T1]
• Feed, seed, fertilizer: exempt. [T1]
• Livestock: exempt for breeding/production. [T1]

Step 3: Return Form Structure

4.1 Filing Details [T1]

Note: Wyoming's due date is the last day of the following month. [T1]

4.2 Vendor Discount [T1]

Wyoming offers a vendor discount of 1.95% of tax collected for timely filing (up to $500/month). [T1]

4.3 Penalties and Interest [T1]

• Late filing penalty: 10% of tax due (minimum $25). [T1]
• Interest: 1% per month (12% per annum). [T1]

Step 4: Deductibility / Exemptions

Exemptions identified in Step 2 above are the primary deductibility rules for Wyoming. Key categories: [T1]

• Resale exemption: Valid resale certificate required. Retain for the statutory period. [T1]
• Exempt organizations: Government entities and qualifying nonprofits -- require exemption certificate on file. [T1]
• Agricultural exemptions: Where applicable per Step 2. [T1]
• Manufacturing exemptions: Where applicable per Step 2. [T2]

All exemption certificates must be collected at or before the time of sale and retained per the state's statute of limitations. [T1]

Step 5: Key Thresholds

3.1 Economic Nexus Threshold [T1]

Statute: W.S. §39-15-501(a)(viii).

3.2 Marketplace Facilitator [T1]

Wyoming requires marketplace facilitators to collect and remit. W.S. §39-15-501(a)(ix). [T1]

3.3 SST Registration [T1]

Full SST member. SSTRS and CSPs available. [T1]

Step 6: Filing Deadlines and Penalties

Refer to Step 3 for filing frequencies and due dates. [T1]

PROHIBITIONS

• NEVER tax grocery food in Wyoming. Unprepared food is exempt. [T1]
• NEVER assume a uniform 4% rate across Wyoming. County taxes add up to 2%. [T1]
• NEVER assume SaaS is taxable in Wyoming. Current law does not tax SaaS. [T2]
• NEVER ignore the mineral/energy industry context. Wyoming's economy and tax structure revolve around natural resources. [T2]
• NEVER file Wyoming returns by the 20th. The due date is the last day of the following month. [T1]
• NEVER compute any number -- all arithmetic is handled by the deterministic engine, not Claude. [T1]

Edge Case Registry

EC1 -- No Income Tax + Low Sales Tax [T1]

Situation: A business considers incorporating or relocating to Wyoming for tax advantages.

Resolution:

• Wyoming has no individual or corporate income tax. [T1]
• Sales tax rates are moderate (4% state + up to 2% local = max 6%). [T1]
• However, mineral severance taxes, property taxes, and the Commerce Tax equivalent should be considered. [T2]
• Wyoming is a popular state for LLCs and holding companies due to privacy laws and no income tax. [T1]
• Flag for reviewer: Total tax burden analysis requires evaluating all tax types, not just sales tax. [T2]

EC2 -- Energy Industry Equipment [T2]

Situation: An oil company purchases $2 million in drilling equipment for use in Wyoming.

Resolution:

• Drilling equipment is generally subject to sales tax at the full combined rate. [T2]
• No broad manufacturing/mining equipment exemption exists. [T2]
• The oil company also faces mineral severance taxes on production. [T1]
• Specific incentive programs may provide relief for certain types of equipment. [T2]
• Flag for reviewer: Verify whether any specific exemptions or incentive programs apply to the equipment type. [T2]

EC3 -- SaaS Not Taxable [T2]

Situation: A technology company asks whether its SaaS product sold to Wyoming customers is taxable.

Resolution:

• SaaS is generally NOT taxable in Wyoming under current law. [T2]
• Wyoming's sales tax base focuses on TPP and limited enumerated services. [T2]
• The company should still monitor for legislative changes. [T2]
• Flag for reviewer: Wyoming's position on SaaS and digital goods is evolving. Verify current DOR guidance. [T2]

EC4 -- Agricultural Equipment Exemption [T1]

Situation: A rancher purchases a new tractor for $60,000 for use on a cattle ranch.

Resolution:

• Farm and ranch machinery is exempt from sales tax. W.S. §39-15-105(a)(vi). [T1]
• The rancher must qualify as a bona fide agricultural producer. [T1]
• The equipment must be used in agricultural production. [T1]
• A mixed-use vehicle used partly for personal purposes may not fully qualify. [T2]
• Flag for reviewer: Verify agricultural producer status and primary use of the equipment. [T2]

EC5 -- Wind Farm Equipment [T2]

Situation: A wind energy company purchases $5 million in wind turbines and related equipment for a Wyoming wind farm.

Resolution:

• Wyoming may offer tax incentives for wind energy development. [T2]
• Without a specific exemption, equipment is subject to sales tax at the combined rate. [T2]
• Check current economic development incentive programs for renewable energy. [T2]
• Flag for reviewer: Wind energy incentives change with legislative sessions. Verify current programs with Wyoming DOR or WYDEQ. [T2]

EC6 -- Tourism and Lodging in Jackson Hole [T2]

Situation: A hotel in Jackson, WY charges $400/night. What taxes apply?

Resolution:

• State sales tax: 4%. [T1]
• Teton County optional tax: up to 2%. [T1]
• Wyoming does not impose a separate state lodging tax. [T1]
• Local lodging taxes may apply (varies by county/city). [T2]
• Combined tax on lodging depends on the specific jurisdiction. [T2]
• Flag for reviewer: Jackson/Teton County is a high-tourism area. Verify all applicable local taxes. [T2]

EC7 -- Use Tax on Cross-Border Personal Purchases [T1]

Situation: A Wyoming resident purchases furniture in Montana (no sales tax) and brings it to Wyoming.

Resolution:

• Wyoming use tax is due on the purchase at the applicable combined rate. [T1]
• No credit for Montana tax (Montana has no sales tax, so $0 was paid). [T1]
• The resident should report and remit use tax. [T1]
• Flag for reviewer: Montana has no sales tax, so no credit applies. Full Wyoming use tax is due. [T1]

Test Suite

Test 1 -- Basic Taxable Sale

Input: Seller in Cheyenne sells $800 of equipment. Combined rate = 6% (4% state + 2% local). Expected output: Tax = $800 x 6% = $48.00. Total = $848.00.

Test 2 -- Grocery Food Exempt

Input: Customer buys $200 groceries in Casper. Expected output: Groceries are EXEMPT. Tax = $0. Total = $200.00.

Test 3 -- Farm Equipment Exempt

Input: Rancher buys a $40,000 tractor for ranch use. Expected output: Farm machinery is exempt. Tax = $0. Total = $40,000.00.

Test 4 -- Economic Nexus

Input: Remote seller sold $105,000 to Wyoming in the prior year. Expected output: $105,000 exceeds $100,000 threshold. Nexus IS triggered. Must register and collect.

Test 5 -- Clothing Taxable

Input: Customer buys $300 jacket in Jackson. Combined rate = 6%. Expected output: Clothing IS taxable. Tax = $300 x 6% = $18.00. Total = $318.00.

Test 6 -- Lodging in Jackson

Input: Guest stays 3 nights at a Jackson hotel at $350/night. Combined rate = 6%. Expected output: Room = $1,050. Tax = $1,050 x 6% = $63.00. Total = $1,113.00.

Test 7 -- Use Tax from Montana Purchase

Input: Wyoming resident buys $2,000 furniture in Montana (no tax paid). WY combined rate = 6%. Expected output: Use tax = $2,000 x 6% = $120.00. No credit (MT has no sales tax).

Test 8 -- Vendor Discount Calculation

Input: Wyoming seller collects $10,000 in tax for the month and files on time. Expected output: Vendor discount = $10,000 x 1.95% = $195.00. Seller remits $10,000 - $195 = $9,805.00.

Reviewer Escalation Protocol

Contribution Notes

• This skill follows the Q1 execution format (Step 0 through Step 7).
• All rules are tagged [T1], [T2], or [T3] per the Confidence Tier Definitions.
• Rate tables are deterministic lookup tables -- no narrative explanation of rates.
• To update this skill, submit a pull request with the specific section, supporting statutory authority, and effective date of the change.
• All changes require validation by a US CPA or EA before merging.

Disclaimer

This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as a CPA, EA, tax attorney, or equivalent licensed practitioner in your jurisdiction) before filing or acting upon.

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Source: OpenAccountants — open tax Guides for AI, reviewed by named CPAs/CAs/EAs. Quality: source-cited draft. For always-current figures and named-accountant backing, connect the OpenAccountants MCP server (openaccountants-mcp).