Ch4. Sales and Use Tax — Tax Structure and Input Credit

Sales Tax Overview

Sales and use tax (US state/local consumption tax):
Collected on retail sales of tangible personal property
and certain services at the state and local level.

Key characteristics:
- Rate: Varies by state and locality (0%–11%+ combined)
- Taxpayer: Seller collects and remits (ultimate burden: consumer)
- No federal sales tax in the US
- Contrast with VAT (used in 170+ countries): VAT is multi-stage
  with credit-invoice system; US sales tax applies only at final retail sale

Taxable business vs. exempt business:
Registered business: Collects and remits sales tax from customers
Exempt transactions (resale): Buyer provides resale certificate → no tax

Taxable, Exempt, and Zero-Rated

Taxable:
- Standard retail sales of tangible goods
- Prepared food and restaurant meals
- Lodging / hotel rooms
- Digital products and software (varies by state)
- Most services (varies greatly by state)

Exempt:
- Unprepared groceries (most states)
- Prescription drugs and medical equipment (nearly universal)
- Agricultural inputs (seeds, feed, machinery — many states)
- Educational materials (varies by state)
- Resale purchases (buyer provides resale certificate)
- Nonprofit and government purchases (varies by state)

Zero-rate equivalent (no direct analog in US sales tax):
- Unlike VAT, the US has no formal "zero rate"
- The nearest equivalent is the resale exemption:
  Seller charges no tax → buyer can resell with tax collection
  BUT: the seller cannot "reclaim" input tax paid upstream
  (This is the key structural difference from VAT)

Exempt vs. “Zero Rate” Comparison

┌──────────────────┬──────────────────────┬────────────────────────┐
│ Feature          │ Exempt (US sales tax) │ Zero Rate (VAT)        │
├──────────────────┼──────────────────────┼────────────────────────┤
│ Tax on sale      │ None                 │ 0%                     │
│ Input tax reclaim│ Not applicable       │ Full reclaim           │
│ Effective result │ Tax embedded in cost  │ Completely tax-free    │
│ Applies to       │ Groceries, medicine  │ Exports (most countries)│
└──────────────────┴──────────────────────┴────────────────────────┘

The Resale Certificate — Mechanism

How resale certificates work:
Manufacturer → Wholesaler → Retailer → Consumer (taxed)

At each business-to-business sale, the buyer provides a resale certificate:
→ Seller does NOT collect sales tax
→ Tax is deferred until the final retail sale to a consumer

The consumer pays tax on the full retail price.
Businesses do not pay tax on goods they will resell.

Key requirements for a valid resale certificate:
- Buyer must hold a valid sales tax permit (or EIN in most states)
- Certificate must identify the type of goods being purchased for resale
- Certificates may expire (re-certification required in some states)
- Misuse = tax fraud (civil and criminal penalties)

Nexus — The Trigger for Collection Obligation

Physical nexus (traditional):
- Office, store, warehouse, or other physical location in the state
- Employees or agents present in the state
- Independent contractors performing services in the state
- Inventory stored in the state (e.g., Amazon FBA)

Economic nexus (post-South Dakota v. Wayfair, 2018):
- The US Supreme Court ruled states can require remote sellers
  to collect sales tax based on economic activity alone
- Typical threshold: $100,000 in sales OR 200 transactions
  into the state (within the current or prior year)
- All 45 sales-tax states have enacted economic nexus laws

Marketplace facilitators:
Amazon, Etsy, eBay, etc. are now required in most states to
collect and remit sales tax on behalf of third-party sellers.

Taxable Periods and Filing

Tax period:
Annual filing (small sellers — often defined as < $300K/yr or few transactions)
Quarterly filing (medium-volume sellers)
Monthly filing (high-volume sellers — typically > $1M/yr)

Filing deadlines:
Generally the 20th–25th of the month following the tax period.
Example: January transactions due February 20 or 25.

Registration:
Must register with each state's revenue department where nexus exists
before beginning to collect. Failure to register = civil penalties.

Penalties for non-collection:
- Liability for uncollected tax PLUS interest
- Penalties: 5%–25% of tax due depending on the state
- Personal liability may extend to business owners in some states

Real Property and Sales Tax

Land: Generally not subject to sales tax (land is not personal property)

New construction:
- Contractor pays sales tax on building materials
- Sale of completed new home: Real estate transfer tax applies,
  but not general sales tax in most states

Commercial real estate leases:
- Commercial rent may be subject to sales tax in some states
  (Florida, Arizona, Hawaii)
- Residential leases: Generally exempt from sales tax

Mixed-use transactions:
If real estate is sold with personal property (furniture, fixtures),
the personal property portion may be subject to sales tax.

Exempt vs. zero rate ★★★★★ : Exempt = no tax collected, no input reclaim (groceries, medicine). Zero rate (VAT) = 0% + full input reclaim (exports). US has no zero rate; exports face no sales tax but no reclaim mechanism either. Memory tip: Zero rate = exports with full reclaim (VAT concept); US exempt = just no tax, no reclaim

Non-deductible input tax situations ★★★★★ : In US sales tax: exempt businesses pay input tax permanently (embedded cost). No reclaim mechanism unlike VAT. Only resellers avoid the tax via resale certificates. Memory tip: Non-business use, personal use, exempt business use = no reclaim in US sales tax

Real estate and sales tax ★★★★☆ : Land = not taxable. Buildings = generally not taxable on sale. Residential leases = exempt. Commercial leases = taxable in some states. Memory tip: Real property sales = generally no sales tax; personal property sales = taxable

Practice Quiz

Q. An export company in Texas pays $100,000 in sales tax on raw materials. Their product is exported and no sales tax is collected from foreign customers. Can they get a refund of the$ 100,000?

Generally, no. Unlike VAT (where exporters get a full input tax refund), US sales tax does not have an input credit mechanism. The $100,000 is a permanent cost of production. However, many states exempt industrial inputs and manufacturing machinery — the company should check whether a manufacturing exemption applies to their purchases.

Q. A grocery store (exempt sales — unprepared food) purchases a new refrigerator and pays $5,000 in sales tax. Can they claim a sales tax input credit?

No. Unlike VAT, US sales tax has no input credit mechanism. The grocery store paid $5,000 in sales tax on the refrigerator, and that amount is simply a business expense (reduces income for income tax purposes). There is no sales tax credit or refund available.