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Connect UK Income Tax Calculator to ChatGPT and Claude

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Get accurate tax and NI breakdowns in seconds.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 3 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through UK Income Tax Calculator.

  1. 01

    Get tax summary report

    This capability generates a full UK tax summary. It provides a complete breakdown of tax, NI, and net take-home pay.

  2. 02

    Calculate income tax

    This capability calculates specific UK income tax liabilities. It applies the relevant tax brackets to your provided income.

  3. 03

    Calculate national insurance

    This capability computes UK National Insurance contributions. It handles both Class 1 and Class 4 calculations.

Real work

What teams actually run

01

Salary Negotiation

Calculate exactly how much a proposed salary increase will actually add to your take-home pay.

02

High Earner Planning

Model the impact of the personal allowance taper when earnings move past the £100,000 mark.

03

NI Verification

Check Class 1 or Class 4 contributions to ensure payroll accuracy.

04

Budgeting

Get a clear view of net income to plan monthly spending and savings.

Automate a task

Put UK Income Tax Calculator to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

UK Income Tax Calculator works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put UK Income Tax Calculator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

672ms average. Fast in production.

UK Income Tax Calculator is checked daily against the live service.

Daily averagePeak 835ms
Oct 3Today
Fastest day
531ms
Slowest day
835ms
14-day trend
Stable+3%

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 UK Income Tax Calculator, so you can see the experience inside your AI.

It does not authenticate your account with UK Income Tax Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

UK Income Tax Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_ycjW9XyTU1a1cH56Fn8zJyGn5S5Lf0cNH8VoyxsD/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — UK Income Tax Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "uk-income-tax-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_ycjW9XyTU1a1cH56Fn8zJyGn5S5Lf0cNH8VoyxsD/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

Guided setup for Claude? Set up UK Income Tax Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work UK Income Tax Calculator owners hand off.

This MCP is built for anyone needing quick, accurate UK tax math through an AI interface.

  • 01

    Financial Planners

    They hand off complex tax threshold calculations to the AI to verify client projections.

  • 02

    Employees

    They use the capability to estimate their actual take-home pay after raises or bonuses.

  • 03

    Accountants

    They use it to quickly run NI and income tax scenarios for various income levels.

FAQ

Questions UK Income Tax Calculator owners ask.

  • 01

    Does this MCP handle the personal allowance taper?

    Yes. It specifically accounts for the tapering of the personal allowance when annual earnings exceed £100,000.

  • 02

    Can I calculate National Insurance?

    Yes. The MCP includes capabilities to calculate both Class 1 and Class 4 National Insurance contributions.

  • 03

    What AI clients can I use this with?

    You can use this MCP with any compatible client, including Claude, Cursor, Windsurf, and VS Code.

  • 04

    Will it tell me my take-home pay?

    Yes. You can use the summary report capability to get a full breakdown of tax, NI, and net take-home pay.

  • 05

    Do I need to host this myself?

    No. Vinkius hosts and manages the MCP for you. You just connect it to your client and it is ready to use.

  • 06

    How does the Personal Allowance tapering work?

    If your annual earnings exceed £100,000, your Personal Allowance is reduced by £1 for every £2 earned above this threshold. This effectively increases the tax rate on income in this range.

  • 07

    What National Insurance classes are supported?

    The capability supports Class 1 NI (for employees) and Class 4 NI (for self-employed individuals).

  • 08

    Can I get a full breakdown of my take-home pay?

    Yes, by using the get_tax_summary_report capability, you can receive a comprehensive report including total income tax, total NI contributions, and your final net take-home pay.

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