Sales Tax Basics
Foundational concepts every Zamp customer should understand: nexus, taxability, and when to register.
10 articles
- How to De-Register Sales Tax in a StateWhen and how to de-register sales tax in a state, including trailing nexus, home rule states, and record retention.
- Understanding Sales Tax for Digital SubscriptionsHow sales tax applies to digital subscriptions, courses, and memberships across different states.
- Physical NexusExplains physical nexus (office, employees, inventory in a state) vs economic nexus, and why you must tell Zamp when it occurs.
- How states treat marketplace sales for nexus calculationsHow states treat marketplace sales for nexus calculations
- Handling State Tax NoticesWhat to do when you get a state sales tax notice: forward it to Zamp, common notice types, and state-specific tips (CO, Denver, CA).
- US Sales Tax Nexus: Economic & Physical Nexus Rules by StateReference table of each US state's economic nexus sales/transaction thresholds, measurement periods, and marketplace facilitator rules.
- Chicago PPLT Overview: Registration, Collection, and ExemptionsLearn who owes the Chicago PPLT, when your business must register and collect.
- VDA vs. Filing Overdue ReturnsChoosing your path to compliance.
- Looking Up a Tax Rate with the Tax Rate CalculatorHow to check the sales tax rate for an address in the Zamp app, with a breakdown by state, county, and city.
- Setting Up Two-Factor Authentication (2FA) on Your State Sales Tax PortalsA quick guide for Zamp customers. Most states take about 5 minutes each.