Use US Corporate Tax Calculator with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Estimate US federal and state corporate income taxes, providing comparative analysis between C-Corp, S-Corp, and LLC structures.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
Waiting for input…
Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Complete set · 3 capabilities
The complete US Corporate Tax Calculator capability set.
These are the exact actions your AI can choose when you ask it to work with US Corporate Tax Calculator.
01-03
3 capabilities in this set.
Part of 3 available through US Corporate Tax Calculator.
- 01
Calculate tax liability
Calculates the specific tax breakdown for a single profit amount in a given state
- 02
Get state tax rate
Retrieves the hardcoded corporate income tax rate for a specific US state
- 03
Compare business structures
Provides a side-by-side comparison of tax burdens for different business structures
Observed, not estimated
596ms average. Fast in production.
US Corporate Tax Calculator is checked daily against the live service.
- Fastest day
- 502ms
- Slowest day
- 728ms
- 14-day trend
- Slowing+26%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of US Corporate Tax Calculator, so you can see the experience inside your AI.
It does not authenticate your account with US Corporate Tax Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
US Corporate Tax Calculator Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_Zv2elrupiGwOcbI8kZDZKh44aUqqSGICFaAqRmiG/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — US Corporate Tax Calculator capabilities are ready to use.
{
"mcpServers": {
"us-corporate-tax-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_Zv2elrupiGwOcbI8kZDZKh44aUqqSGICFaAqRmiG/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
FAQ
Questions US Corporate Tax Calculator owners ask.
- 01
How can I find the tax rate for a specific state?
You can use the get_state_tax_rate capability by providing the two-letter US state abbreviation (e.g., 'NY' for New York).
- 02
Does this capability calculate federal taxes?
Yes. The calculate_tax_liability capability calculates both the 21% federal corporate tax and the applicable state-level tax.
- 03
Can I compare different business structures?
Yes, the compare_business_structures capability provides a side-by-side comparison of tax burdens for C-Corp, S-Corp, and LLC entities.
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