Sales Tax Insights
Expert guidance on sales tax compliance, jurisdiction data, and API integration for developers and finance teams.
What Is FIPS? Understanding Federal Information Processing Standards for Tax Data
Learn how FIPS codes provide unambiguous county identification for sales tax systems, and why they matter for compliance.
Read article →Why ZIP Code Sales Tax Lookup Is Inaccurate
ZIP codes cross county and city boundaries, making them unreliable for tax jurisdiction determination. Learn why and what to do about it.
Read article →How Often Do Sales Tax Rates Change?
Sales tax rates change more frequently than most businesses expect. Understand quarterly updates, emergency adjustments, and compliance risk.
Read article →Origin vs Destination Sales Tax: What Businesses Need to Know
Some states tax based on the seller's location, others on the buyer's. Learn the difference and how it affects ecommerce compliance.
Read article →