MCP For Claude Marketplace
US Sales Tax Calculator

US Sales Tax Calculator MCP Connector for Claude

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Calculate precise US sales and use tax liabilities based on jurisdiction, sourcing rules, and item exemptions.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner
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This MCP server provides a high-precision engine for determining US sales and use tax obligations. It handles the complexities of multi-layered taxation (state, county, city, and special districts) and supports both destination-based and origin-based sourcing rules. Use get_jurisdiction_rates to retrieve full tax breakdowns for any ZIP code, calculate_transaction_tax to compute exact liabilities for specific transactions including tax-inclusive pricing, and check_item_exemption to verify if product categories like groceries or apparel are exempt in a particular state. It is designed to bridge AI agents with real-time US tax data.

sales-taxus-taxuse-taxjurisdictionecommerce-tools

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

check_item_exemption

Check if an item category is exempt from tax

calculate_transaction_tax

Calculate the total tax liability for a transaction

get_jurisdiction_rates

Retrieve tax rates for a specific location

See how to talk to your AI agent using US Sales Tax Calculator.

What are the tax rates for ZIP code 90210 in California?

For ZIP code 90210 (CA), the total combined rate is 9.5%. This includes a state rate of 7.25%, a county rate of 0.25%, and local district rates of 2.0%.

Calculate the tax for a $100 electronics purchase from 60601 to 90210.

The total tax amount is $9.50, making the final total $109.50. This calculation uses destination-based sourcing for California.

Is apparel exempt from sales tax in New York?

In New York, certain clothing items are exempt from the state sales tax, though local district taxes may still apply.

The `calculate_transaction_tax` tool automatically identifies whether a state uses destination-based or origin-based sourcing by comparing the provided origin and destination postal codes.

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