IRAS Tax Assistant - how to use

Singapore tax, answered in your browser

A conversational assistant for GST, income tax, corporate tax, and SRS, plus the tools and evaluations behind it. No install, no terminal, no API key of your own.

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How to use it

Assistant

Ask Singapore tax questions in plain language. It looks up IRAS facts, can work out a rough chargeable-income estimate, and routes anything personal to a human advisor. Use New chat and the history sidebar to manage conversations.

Start asking

MCP tools

The tools the assistant calls (from iras-mcp-server). Run them, edit the built-in ones (enable or disable, change descriptions, edit the lookup facts), or build your own. Your edits apply to the assistant.

Open MCP tools

Evals

Configure the model routing rules and the test cases, then click Run. Each case routes to a model and is graded against your keywords, so you can compare models and pass rates.

Open Evals

Advisor queue

When the assistant escalates a personal or complex question, it lands here for a human advisor to review and resolve.

Open advisor queue

Good first questions

What is the GST registration threshold?Estimate chargeable income (120k income, 20k deductions)Compare corporate vs top personal tax rates Should I contribute to SRS this year?

Unofficial demo, not affiliated with IRAS. General information only, not personalised tax advice. Built on iras-mcp-server, iras-tax-agent, and llm-eval-iras.