TaxJar connects to your ecommerce platforms like Shopify, Amazon, Etsy, Walmart, and others, pulls in transaction data, and calculates how much sales tax you owe by state and local jurisdiction. It also tracks economic nexus thresholds so you know when sales into a new state cross the line that requires you to register and collect. Once you’re registered, TaxJar can file the returns automatically on whatever schedule the state requires.

For ecommerce sellers, this kind of tool is close to essential. After the 2018 Wayfair decision, states can require you to collect sales tax based on economic activity rather than physical presence. Every state has its own thresholds, rates, filing frequencies, and rules about what’s taxable. Tracking that manually across multiple sales channels and dozens of states isn’t realistic. TaxJar handles the math and the filings so you can keep selling instead of becoming a part-time tax compliance department.

What TaxJar does not do is reconcile your books. It reports on the data your sales channels send it. If your Shopify gross sales don’t match what’s actually recorded in your accounting system, or if your Amazon settlements aren’t being broken out properly between gross sales, refunds, fees, and reserves, TaxJar still produces a number. It just might not be the right number. And when the state audits you, they look at your accounting records, not your TaxJar reports.

This is where reconciled sales-channel bookkeeping matters. Every deposit from Shopify, Amazon, or any other platform needs to tie back to gross sales minus refunds, chargebacks, processor fees, and platform fees. The net should match the bank deposit. The gross should match what TaxJar sees. When those numbers agree, your sales tax filings rest on solid ground. When they don’t, you have a problem hiding in your books that will eventually surface, usually at the worst time. Ecommerce sellers often discover during an audit or a state notice that their TaxJar data and their accounting records have been drifting apart for months.

GMJ sets up TaxJar starting at $300 and provides ongoing sales tax management using the platform. That includes connecting your channels, configuring product taxability, mapping nexus states, and getting filings on the right schedule. But we also reconcile each sales channel monthly so the data feeding into TaxJar matches the books underneath. Setup without that reconciliation work gives you automation on top of a shaky foundation.

If you’re already using TaxJar and want a second look at whether your books and your sales tax filings actually agree, that’s a conversation worth having. We offer small business accounting, bookkeeping and tax services in Jacksonville, NC with specific focus on ecommerce sellers who need both the tooling and the clean records that make the tooling reliable.