aus-accounting-mcp

MCP facade over reviewed Australian computational accounting engines. Compatible with Claude Desktop, Claude Code, Cursor and Antigravity.

This server does not reimplement tax law. Payday Super and ATO small-business benchmarks are delegated to:

payday-super-checker (paydaysuper)
RaymondChambers (ato-benchmark-compare)

Division 7A is refused until a reviewed engine exists. SBR payloads are synthetic fixtures, not lodgments.

Tools

Tool	Engine	What it does
`list_ato_benchmark_industries`	ato-benchmark-compare	List or search the shipped ATO business types
`get_ato_benchmarks`	ato-benchmark-compare	Compare operator-supplied bucket totals to ATO ranges
`calc_payday_super_deadline`	payday-super-checker	Review one contribution; `as_at` is required; does not invent clearing-house latency; cannot confirm LCR 2026/1 transition allocation
`calc_div7a_repayment`	none	Returns a refusal. No reviewed Div 7A engine is wired
`generate_synthetic_sbr_fixture`	local fixture	Synthetic CTR/BAS for agent tests (`synthetic: true`)

Amounts are decimal strings, finite, at most two decimal places, and no greater than AUD 1,000,000,000,000.00. Dates are ISO-8601. Payday Super uses payday-super-checker's national SGAA 1992 s 6(1) calendar. The checker marks UNKNOWN or refuses where the facts do not establish the statutory test. A remittance date alone cannot produce ON_TIME. Omitted ATO expense buckets are not_supplied, not zero.

Install

Python 3.10+. The engines are installed from GitHub because they are not on PyPI.

git clone https://github.com/ryanduguid/aus-accounting-mcp.git
cd aus-accounting-mcp
pip install .

aus-accounting-mcp

Client integration

Claude Desktop

%APPDATA%\Claude\claude_desktop_config.json:

{
  "mcpServers": {
    "aus-accounting": {
      "command": "aus-accounting-mcp"
    }
  }
}

Cursor

.cursor/mcp.json:

{
  "mcpServers": {
    "aus-accounting": {
      "command": "aus-accounting-mcp"
    }
  }
}

Claude Code

claude mcp add aus-accounting -- aus-accounting-mcp

License

MIT License. Created by Ryan Duguid.

aus-accounting-mcp