{"schema_version":"1.0","generated_by":"COLE — Citation Operations & Legal Engine","product_id":"wayfair-nexus-sniper","title":"Sales Tax Nexus Liability Engine","site":"https://taxchecknow.com/us/check/wayfair-nexus-sniper","authority":"State Revenue Authorities / US Supreme Court","authority_url":"https://www.supremecourt.gov/opinions/17pdf/17-494_j4el.pdf","jurisdiction":"United States","language":"en-US","currency":"USD","last_verified":"April 2026","legislation":"South Dakota v. Wayfair, Inc., 585 U.S. 162 (2018) — Economic Nexus for Sales Tax (45 states + DC)","legal_anchor":"South Dakota v. Wayfair, Inc., 585 U.S. 162 (2018)","deadline":{"iso_date":"2026-12-31T23:59:59.000-05:00","display":"December 31, 2026","description":"Year-end nexus review deadline — each year of non-compliance increases lookback exposure","urgency_label":"COMPLIANCE DEADLINE"},"key_facts":{"legal_anchor":"South Dakota v. Wayfair, Inc., 585 U.S. 162 (2018)","states_with_economic_nexus_2026":"45 states + DC","states_with_no_sales_tax":"Alaska, Delaware, Montana, New Hampshire, Oregon","most_common_threshold":"$100,000 sales OR 200 transactions per state per calendar year","retroactive_start_date":"Date threshold crossed (not registration/discovery)","interest_rate":"Typically 6-12% per year","penalty_rate":"Typically 10-25% of uncollected tax","vda_lookback_cap":"3-4 years (most states)","marketplace_rule":"Platform collects on marketplace sales in most states; sales still count toward seller's threshold"},"formula":"Economic Nexus = sales OR transactions in the state ≥ state threshold (most common: $100,000 OR 200 transactions per calendar year). Retroactive liability = uncollected tax + interest (6-12%/yr) + penalties (10-25%) from date threshold crossed. VDA caps lookback at 3-4 years and typically waives penalties.","thresholds":[{"label":"Under $50k total gross sales across all states","value":1,"status":"clear"},{"label":"$50k–$100k gross sales — approaching thresholds","value":2,"status":"approaching"},{"label":"$100k–$500k gross sales — likely nexus in multiple states","value":3,"status":"trap"},{"label":"Over $500k gross sales OR FBA inventory in use","value":4,"status":"deep_trap"},{"label":"Not sure of my gross sales by state","value":5,"status":"risk"}],"common_ai_errors":[{"error_id":1,"ai_says":"ChatGPT says: I do not have a physical presence in that state so I do not owe sales tax","correct":"Reality: The Supreme Court's 2018 Wayfair decision ended physical presence as the test. Economic nexus — based on sales volume or transaction count in the state — is now the standard in 45 states plus DC. If you have exceeded the state's threshold, you have a collection and remittance obligation regardless of where your business is physically located."},{"error_id":2,"ai_says":"ChatGPT says: Amazon collects sales tax for me so I am covered","correct":"Reality: Partially wrong. Amazon collects tax on marketplace sales in most states. But your Amazon sales still count toward economic nexus thresholds in many states. Direct website sales create separate obligations. And some states require you to file returns even when a marketplace facilitator collects on your behalf. 'Amazon handles it' is not a complete answer."},{"error_id":3,"ai_says":"ChatGPT says: I will register once I know I have nexus","correct":"Reality: Wrong on timing. Nexus is triggered at the moment you cross the threshold — not at the moment you register. Waiting to register does not reset the clock. It increases the retroactive exposure. Every month you sell without registration after crossing the threshold adds to the uncollected tax, interest, and penalty stack. VDAs limit the lookback period — but only if you proactively register. Waiting for an audit removes the VDA option."},{"error_id":4,"ai_says":"ChatGPT says: Sales tax is the customer's problem","correct":"Reality: Wrong when you do not collect it. Sales tax is a trust fund tax — collected from customers on behalf of the state. If you do not collect it, the state still holds you responsible for remitting it. The liability does not transfer to your customers because you failed to charge them. You absorb the full uncollected tax from your margin."}],"faq":[{"id":1,"question":"What is economic nexus?","answer":"Economic nexus is a sales tax obligation triggered by economic activity in a state — such as making $100,000 in gross sales to customers in that state — without any physical presence. It was established by the Supreme Court in South Dakota v. Wayfair (2018)."},{"id":2,"question":"Does Amazon FBA create nexus?","answer":"Yes. Having inventory in an Amazon fulfilment centre creates physical nexus in that state immediately — with no sales threshold required. Amazon operates fulfilment centres in over 40 states. Using FBA creates nexus obligations in most of them regardless of your sales volume."},{"id":3,"question":"Do marketplace sales count toward nexus thresholds?","answer":"Yes. In most states, your gross sales through marketplaces like Amazon, Etsy, and Walmart count toward your economic nexus threshold — even though the marketplace collects and remits the sales tax on your behalf. You may be crossing nexus thresholds without collecting a dollar of tax yourself."},{"id":4,"question":"What is a Voluntary Disclosure Agreement (VDA)?","answer":"A VDA is an agreement with a state revenue authority where you voluntarily come forward and register for sales tax. In exchange, the state typically limits your lookback period (often to 3–4 years) and reduces or eliminates penalties. VDAs must be filed before the state contacts you — once an audit starts, VDA is typically no longer available."},{"id":5,"question":"How far back can states audit for uncollected sales tax?","answer":"It depends on the state. Most states have a 3–4 year statute of limitations for registered filers. However, for non-filers — sellers who should have registered but did not — some states have no statute of limitations. They can assess tax from the date nexus was first established, potentially years or decades back."},{"id":6,"question":"What is the difference between gross sales and taxable sales?","answer":"Gross sales is your total revenue from all sales — taxable and exempt — before any deductions. Taxable sales is only the revenue from transactions subject to sales tax. Most states use gross sales to determine nexus thresholds. Using only taxable sales significantly undercounts your exposure."},{"id":7,"question":"What states removed the 200-transaction threshold in 2026?","answer":"Illinois is the most notable example, removing the 200-transaction threshold effective January 1, 2026. Other states have similar changes pending. Sellers who relied on having fewer than 200 transactions to avoid nexus should re-evaluate — gross sales alone may now trigger their obligation."},{"id":8,"question":"What are the Big 5 states for sales tax nexus risk?","answer":"California (highest rates, aggressive audits), Texas (large population, broad nexus rules), New York (complex product taxability), Illinois (removed transaction threshold 2026), and Pennsylvania (economic nexus + physical presence rules). These five states generate the most nexus exposure for most online sellers."},{"id":9,"question":"Can I deregister from a state once I drop below the threshold?","answer":"Yes, but the process varies by state and the criteria differ. Some states require you to remain registered for a period after dropping below threshold. Others allow immediate deregistration. You must file a final return for the period you were registered."},{"id":10,"question":"What is the penalty for not collecting sales tax?","answer":"Penalties vary by state but typically include: 5–25% of unpaid tax, interest on unpaid tax (often 6–10% annually), and in some states, personal liability for business owners. States that discover non-compliance through audit typically apply maximum penalties. VDA significantly reduces these."},{"id":11,"question":"Should I use a marketplace facilitator or sell direct to manage nexus?","answer":"This is a strategy question with no universal answer. Selling exclusively through marketplaces (Amazon, Etsy) shifts the collection obligation to the platform in most states — but your nexus threshold exposure remains. Selling direct gives you more control but creates direct registration obligations."},{"id":12,"question":"What is the amnesty programme and how do I access it?","answer":"Some states offer periodic sales tax amnesty programmes where non-compliant sellers can register and pay back taxes with reduced or no penalties. These programmes are time-limited and vary by state. A VDA is the always-available equivalent — it achieves similar penalty reduction outside of formal amnesty periods."}],"sources":[{"title":"Sales Tax Institute — Nexus State-by-State Guide 2026","url":"https://www.salestaxinstitute.com/sales_tax_faqs/economic-nexus-state-by-state-guide"},{"title":"IRS — State and Local Taxes","url":"https://www.irs.gov/businesses/small-businesses-self-employed/state-and-local-taxes"},{"title":"Supreme Court — South Dakota v. Wayfair Inc.","url":"https://www.supremecourt.gov/opinions/17pdf/17-494_j4el.pdf"},{"title":"Machine-readable JSON rules","url":"/api/rules/wayfair-nexus-sniper"}],"products":{"tier1":{"name":"Your Nexus Heatmap Action Plan","price":67,"currency":"USD","description":"Are you already non-compliant — and how much do you owe right now?","url":"https://taxchecknow.com/us/check/wayfair-nexus-sniper/success/assess"},"tier2":{"name":"Your VDA Shield System","price":147,"currency":"USD","description":"Reduce penalties and limit lookback with Voluntary Disclosure — before the audit letter arrives","url":"https://taxchecknow.com/us/check/wayfair-nexus-sniper/success/plan"}},"monitor_urls":["https://www.salestaxinstitute.com/sales_tax_faqs/economic-nexus-state-by-state-guide","https://www.streamlinedsalestax.org"],"canonical":"https://taxchecknow.com/us/check/wayfair-nexus-sniper","api_endpoint":"/api/rules/wayfair-nexus-sniper","generated_at":"2026-04-23T04:58:18.526Z"}