Tallyfern Rates (Canada)

Connect it to your AI

Claude Code

claude mcp add --transport http rates https://mcp.tallyfern.com/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://mcp.tallyfern.com/mcp

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "rates": {
      "url": "https://mcp.tallyfern.com/mcp"
    }
  }
}

Tools it offers

5 tools, as the server itself reported during our check on Oct 31, 2026.

• gst_hst_small_supplier_checkApply the CRA's $30,000 small-supplier tests (single calendar quarter and four consecutive calendar quarters) to taxable revenue by calendar quarter. Says whether the person must register for the GST/HST, when they stop
• gst_hst_rate_by_provinceCurrent GST/HST rate for a Canadian province or territory (or all 13), with the PST/QST rate CRA lists for reference. From CRA's 'Charge and collect the GST/HST' table. Returns structuredContent with one rate row (or all
• cra_automobile_allowance_rateCRA reasonable per-kilometre allowance rates for employer-paid vehicle allowances (2026 default; 2025 also available): first 5,000 km and after, provinces vs territories. Optionally calculates the allowance for a number
• cra_meal_travel_allowanceCRA simplified-method rates (latest published tax year): flat meal rate per meal and maximum per day, and vehicle cents/km by province or territory where travel begins. These apply to moving expenses, northern residents
• ontario_hst_basicsPlain-language basics for Ontario businesses: the 13% HST rate, the $30,000 small-supplier threshold, the 29-day registration deadline and place-of-supply rule, with CRA sources. Returns structuredContent with the Ontari

Questions