Your AI agent, fluent in Australian tax.
Claude Cowork skill/plugin to help with Australian Tax Returns
Prep-only Australian individual tax return plugin and portable skills for Codex, Claude Code, Cowork, and OpenAgentSkill: official ATO source links, GST/BAS and CGT review flags, evidence gaps, and manual myTax/paper/accountant handoff.
Preparation and review workflows for Australian public practice and contracting: BAS, month-end close, payroll and workpaper tie-outs. No lodgement or advice.
Local engines for ATO small-business benchmarks, Payday Super 2026 and Division 7A loan review, available through the aus-accounting-mcp server. Synthetic fixtures only.
Code for building a corpus of in-force Commonwealth tax legislation, with source and provenance records.
API-first personal finance app for Australian CGT calculations
GitHub profile README for Ryan Duguid. Portfolio maintenance and original history are in Metanoia.
Agent Skill for preparing and reviewing an Australian individual tax return for 2025-26. Evidence-first intake, no stored identifiers or amounts, and a source-expiry gate that stops it asserting stale ATO rules.
Source for duguid.com.au: open source tools, calculators and Excel LAMBDA functions for Australian accountants, with sources and working shown.
Point-in-time research over Australian tax law. Every claim is a verified verbatim quote from the source, or the system refuses to answer. Self-hosted.
Guardrails for AI in Australian tax and BAS work: APES 110, TPB Code and AML/CTF controls, refusal rules and evaluation cases for LLM-assisted drafting.
Runs deterministic month-end close checks on Xero trial-balance exports and produces exception packs for human sign-off.
143 native Excel LAMBDA functions and 5 help tables for Australian GST arithmetic and financial modelling. Requires Microsoft 365 or Excel 2024 or later; no add-ins or macros.
Interactive calculator comparing Australia's current CGT 50%-discount regime with the proposed indexed-cost-base model — real vs nominal gains, side by side.
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