{"id":32352,"date":"2026-05-08T10:00:29","date_gmt":"2026-05-08T10:00:29","guid":{"rendered":"https:\/\/synder.com\/blog\/?p=32352"},"modified":"2026-05-08T10:00:30","modified_gmt":"2026-05-08T10:00:30","slug":"sales-tax-nexus","status":"publish","type":"post","link":"https:\/\/synder.com\/blog\/sales-tax-nexus\/","title":{"rendered":"Sales Tax Nexus: Ecommerce Nexus Guide for 2026"},"content":{"rendered":"\n

Most ecommerce sellers find out about sales tax nexus the wrong way: a letter from a state revenue department about an inventory location they didn’t know they had, or a pre-audit questionnaire asking them to account for three years of unregistered sales. By that point, the question is no longer whether money is owed. It becomes how much is owed and to how many states.<\/p>\n\n\n\n

The reason it plays out that way is that nexus rules have changed faster than most sellers track them, and the gap between knowing the rules and actually crossing a threshold is where the back taxes pile up. Below is what counts as nexus, what triggers it, how marketplace platforms fit in, and what to do once you’ve crossed a threshold.<\/p>\n\n\n\n

TL;DR<\/strong><\/h2>\n\n\n\n