Key Features
Auto Calculation
Real-time sales tax calculation at checkout across all US states — accurate rooftop-level rates.
AutoFile
Automatically files and remits sales tax returns in every state you're registered — fully hands-off compliance.
E-Commerce Integration
Native integrations with Shopify, WooCommerce, Amazon, Etsy, BigCommerce and more.
Sales Tax Reports
Ready-to-file reports for every state — know exactly what you owe before AutoFile runs.
Nexus Tracking
Tracks where you have sales tax nexus as your business grows — alerts you to new filing requirements.
Transaction History
Full transaction history with tax breakdown — audit-ready records for every sale.
Pros & Cons
What we like
Most affordable sales tax tool for small e-commerce
AutoFile is truly hands-off — set it and forget it
Excellent Shopify and Amazon integrations
30-day free trial to evaluate fully
Simpler and cheaper than Avalara for US-only sellers
Clean dashboard that's easy to understand
Watch out for
US-focused — Avalara better for international VAT/GST
AutoFile is an add-on cost on top of base plan
Enterprise features limited vs Avalara
Occasional sync delays with some platforms
Best Alternatives
Avalara
More comprehensive for international VAT/GST and enterprise scale
Expensify
Expense management — complements TaxJar for full finance automation
Bill.com
Accounts payable automation alongside tax compliance
NetSuite
Full ERP with built-in tax — for larger businesses outgrowing TaxJar
Frequently Asked Questions
TaxJar offers a 30-day free trial. Paid plans start at $19/month for the Starter plan covering basic sales tax reporting. AutoFile (automatic return filing) is an add-on charged per state per filing period.
TaxJar is the better choice for small to mid-sized e-commerce businesses with US-only sales tax needs — it's simpler, cheaper and easier to set up. Avalara is better for larger businesses, SaaS companies or international sellers needing global VAT/GST compliance. Most Shopify sellers should start with TaxJar.