TaxJar provides automated sales tax calculations, customer management, and address validation for e-commerce operations. With Relevance AI, you can enhance these capabilities, ensuring compliance and efficiency through advanced AI-driven insights.



TaxJar automates sales tax calculations and customer management, while Relevance AI empowers these processes with intelligent AI Agents that can adapt and optimize in real-time.
Real-Time Tax Intelligence
AI agent processes live transaction data to deliver instant, accurate tax calculations across multiple jurisdictions
Compliance Orchestration
Agent automatically monitors and adapts to changing tax regulations while maintaining filing accuracy across states
Predictive Nexus Analysis
Forecasts economic nexus thresholds and triggers proactive compliance measures before issues arise
Relevance AI seamlessly integrates with TaxJar to enhance your e-commerce workflows with automated tax solutions.
What you’ll need
You don't need to be a developer to set up this integration. Follow this simple guide to get started:
- A TaxJar account
- A Relevance AI account with access to your project settings
- Authorization credentials (you'll connect securely using API keys—no sensitive info stored manually)
Security & Reliability
The TaxJar integration with Relevance AI streamlines your e-commerce operations by automating sales tax calculations, managing customer exemptions, and validating addresses. This integration utilizes secure OAuth authentication, ensuring that only authorized workflows access your TaxJar data. Relevance AI handles API operations (like creating customers, calculating sales tax, and validating addresses) in the background—so you don’t have to worry about errors, formatting, or limits.
With built-in validation and type conversion, you can ensure that your workflows run smoothly, even when data formats vary. The integration provides real-time tax calculations and customer exemption management through a unified API interface, making tax compliance simpler and more efficient.
No training on your data
Your data remains private and is never utilized for model training purposes.
Security first
We never store anything we don’t need to. The inputs or outputs of your tools are never stored.

To get the most out of the TaxJar + Relevance AI integration without writing code:
- Start with accurate customer data: Ensure customer information is complete and formatted correctly for tax exemption management.
- Utilize address validation: Always validate addresses before performing tax calculations to avoid errors.
- Leverage automated workflows: Use Relevance AI's pre-built workflows for creating customers and calculating sales tax to streamline processes.
- Test with sample data: Run tax calculations and customer creations with test data to ensure everything works as expected before going live.
- Monitor API usage: Keep an eye on API rate limits and implement retry logic to handle potential throttling.