🔥 There's a tax bill quietly stacking up in states you've never set foot in — and most online sellers have NO idea it exists until it detonates at the worst possible moment: the closing table.In this episode of Stacks Over Tax, Mark Lewis, EA sits down with Jerry Donnini, a nationally recognized sales tax attorney and founder of Sales Tax Helper, who has represented over 5,000 businesses. Jerry breaks down how the 2018 Wayfair decision rewrote the rules — turning "economic nexus" into a trap that can create sales tax liability in dozens of states just from your online sales, why sellers get stuck owing back tax they never collected (plus penalties and interest), and how states are now using AI and third-party data to hunt down non-filers.If you sell on Shopify, Amazon, or any marketplace, run a SaaS business, or plan to sell your company someday, this conversation could save you from a six-figure surprise. Jerry also explains where sales tax software helps, where it goes dangerously wrong, and how to clean up past exposure before it sinks a deal.🔥 In this episode: - How the 2018 Wayfair decision changed the rules for every online seller - What "nexus" actually means and how you trigger it - Owing back sales tax you never charged your customers - How unpaid sales tax can blow up a business sale - Voluntary disclosure and shrinking the look-back period - When unpaid sales tax becomes a criminal problem - Why assuming Shopify or Amazon handles it is a costly mistake - Where sales tax software helps and where it fails you⭐️ This channel is dedicated to helping entrepreneurs legally reduce taxes, protect assets, structure LLCs correctly, build generational wealth, and avoid the financial traps most business owners never see coming.0:00 — States are using AI to find non-filers0:47 — Meet Jerry Donnini, sales tax attorney2:42 — What happens if you ignore sales tax3:05 — The 2018 Wayfair decision that changed everything5:33 — What "nexus" actually means7:23 — What triggers nexus in a state9:01 — How unpaid sales tax blows up a business sale10:25 — Voluntary disclosure and cutting the look-back14:40 — When sales tax becomes criminal19:44 — Why assuming Shopify handles it is a trap21:56 — Where tax software helps and where it fails23:31 — Jerry's path from gas stations to tax law31:35 — The next 10 years and AI🔔SUBSCRIBE TO MY CHANNEL ⭐️Connect with Us:http://www.executivemoneystrategies.com/🔥 Take the free 60-second tax reduction survey:http://bit.ly/taxquiz2026📖 Get Your Copy of Mark's Newest Book: "Turn Your $60,000 Salary Into $1 Million"https://bit.ly/60KtoMillion 📧 Email Mark: mark@marksmoneysecrets.com💻 Watch: https://www.youtube.com/@MarksMoneyStrategies🎯IG https://www.instagram.com/marksmoneystrategies/ 🎯FB https://www.facebook.com/marksmoneystrategies🎯TT https://www.tiktok.com/@marksmoneystrategies#LLC #SCorp #BusinessTaxes #TaxReduction #AssetProtection #BusinessOwner #Entrepreneur #WealthBuilding #TaxPlanning #SmallBusinessTaxes #MultiMemberLLC #HoldingCompany #AugustaRule #BusinessDeductions #SelfEmploymentTax #GenerationalWealth #WealthPreservation #BusinessFinance #FinancialFreedom #CorporateStructure #Trust #EstatePlanning #CashFlowInvesting #AdvancedTaxStrategies #FamilyWealth #BusinessConsulting #TaxLoopholes #MarkLewis #SalesTax #Wayfair© 2026 All Rights Reserved | Mark Lewis, EA | Executive Money Strategies