MCP For Claude Marketplace
Avalara (AvaTax)

Avalara (AvaTax) MCP Connector for Claude

A+

Automate tax calculation and compliance with Avalara AvaTax — calculate rates and resolve addresses via AI.

10 tools Official Updated Oct 1, 2026 Official Vinkius Partner
More Details Connect to Claude

Connect your Avalara AvaTax account to any AI agent and automate your transaction tax compliance through natural conversation.

What you can do

  • Real-time Tax Calculation — Create and record transactions with accurate sales tax rates for any global jurisdiction
  • Precision Address Validation — Resolve and validate physical addresses to ensure maximum calculation accuracy and nexus compliance
  • Seamless Transaction Management — Retrieve, commit, and void tax transactions directly from your chat interface
  • Compliance & Nexus Auditing — List tax nexus settings and company details to ensure your business remains compliant with local regulations

How it works

  1. Subscribe to this server
  2. Enter your AvaTax Username (Account ID) and Password (License Key)
  3. Start managing your tax compliance from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Finance & Accounting Teams — instantly calculate taxes for complex orders and audit company nexus settings
  • E-commerce Operations — validate shipping addresses and ensure tax compliance without manual data entry
  • Developers — test tax calculation logic in sandbox and audit transaction records through natural language commands
tax-compliancesales-taxaddress-validationtax-calculationnexus-managementtransaction-recording

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

create_transaction

Calculate tax and record a transaction

get_account_check

Verify AvaTax account connection

get_tax_rates_by_address

Get tax rates for a physical address

resolve_address

Validate and resolve a physical address

commit_transaction

Mark a transaction as committed for reporting

get_company

Get details for a specific company

get_transaction

Retrieve a specific transaction by code

list_companies

List all companies in the account

void_transaction

Void a transaction

list_nexus

List tax nexus for a specific company

See how to talk to your AI agent using Avalara (AvaTax).

Resolve the following address: '2000 Main St, Irvine, CA 92614'.

I've resolved the address. It is a valid physical location: 2000 Main St, Irvine, CA, 92614-7223, US. The jurisdiction codes have been identified for accurate tax calculation. Shall I proceed with a tax quote for this location?

List all active nexus settings for my company 'MainStore'.

I've retrieved the nexus list for 'MainStore'. You currently have active tax obligations in 5 jurisdictions, including California, New York, and Texas. Would you like to see the specific effective dates for each?

Calculate sales tax for a $100.00 purchase from Seattle to New York.

Based on the origin (Seattle) and destination (New York), the total sales tax for a $100.00 purchase is $8.88. This includes the state, city, and special district taxes. Would you like me to record this transaction in your AvaTax ledger?

Yes! Use the `resolve_address` tool with the full address string. Your agent will return the validated and formatted address, ensuring that the subsequent tax calculation uses the correct jurisdiction data.

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