MCP For Claude Marketplace
TaxJar

TaxJar MCP Connector for Claude

A+

Calculate, collect, and remit sales tax automatically across every US state and jurisdiction with real-time rate accuracy.

12 tools Official Updated Jun 28, 2026 Official Vinkius Partner
More Details Connect to Claude

Connect your TaxJar sales tax automation account to any AI agent and simplify how you calculate tax rates, manage jurisdictional nexus, and monitor order compliance through natural conversation.

What you can do

  • Precise Tax Calculation — Calculate real-time sales tax for orders based on specific destination addresses and product categories.
  • Rate Lookup — Retrieve general sales tax rates for any ZIP code or city to estimate costs instantly.
  • Nexus Management — List and monitor regions where your business has a sales tax nexus to ensure compliance.
  • Transaction Oversight — Record, update, and manage sales order and refund transactions for automated reporting.
  • Address Validation — Verify street addresses to ensure highly accurate tax jurisdiction identification.
  • Product Categorization — List TaxJar product categories and codes to apply correct tax exemptions and rates.

How it works

  1. Subscribe to this server
  2. Enter your TaxJar API Token (found in your account settings)
  3. Start managing your sales tax compliance from Claude, Cursor, or any MCP client

Who is this for?

  • E-commerce Managers — quickly calculate taxes for custom orders and check nexus status via simple AI commands.
  • Finance & Accounting Teams — monitor transaction history and verify sales tax collected directly from the workspace.
  • Ops & Logistics — validate shipping addresses and ensure correct product categorization via the AI assistant.
sales-taxtax-calculationnexus-managementcompliancetax-automationorder-management

12 tools expose this connector's capabilities to your AI agent.

calculate_sales_tax

Calculate order tax

create_tax_order

Record order transaction

create_tax_refund

Record refund

delete_tax_order

Remove order record

get_tax_account

Get API status

get_tax_order

Get order details

get_tax_rates

Get rates by ZIP

list_tax_categories

List product types

list_nexus_regions

List tax nexus

list_tax_orders

List order transactions

update_tax_order

Modify order record

validate_tax_address

Verify address for tax

See how to talk to your AI agent using TaxJar.

Calculate sales tax for a $150 order to NY 10001, USA.

I've calculated the tax. For a $150.00 order to New York (10001), the total sales tax is $13.31 (8.875%). The total amount including tax would be $163.31. Would you like to log this transaction?

Show me all regions where I have a tax nexus.

Retrieving nexus data... You currently have active sales tax nexus in 3 regions: California (CA), Florida (FL), and New York (NY). Shall I check the tax rates for any of these states?

Find the tax rate for ZIP code 90210.

The sales tax rate for Beverly Hills (90210, CA) is currently 9.5%. This includes a state rate of 6%, a county rate of 0.25%, and a local rate of 3.25%.

Yes! Use the `calculate_sales_tax` tool. Provide the destination country, zip code, and state along with the order amount. Your agent will return the precise tax to be collected.

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