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ryanduguid/README.md

Ryan Duguid

I'm an accountant in Newcastle, Australia. I build open-source controls for Australian tax, payroll and financial reporting.

DrDebits APES 110 aligned guardrails Open-source Australian accounting tools Ozzit: 134 native Excel LAMBDAs Python 3.10 or later Model Context Protocol

Selected work

  • xero-trial-balance-export exports balanced Xero trial balances to CSV for Power BI, Excel and pandas.
  • payday-super-checker checks fund receipt dates against Payday Super deadlines and prepares exceptions for review.
  • Ozzit provides 134 native Excel LAMBDA functions for financial modelling and GST arithmetic.
  • accounting-excel-toolkit contains Power Query and VBA utilities for Australian ledger exports.

See the full project catalogue and worked examples.

The projects use synthetic public examples and support professional review. They do not lodge or write to ledgers.

Background

  • Provisional member of Chartered Accountants ANZ
  • SAP S/4HANA certified in FI and CO
  • Xero specialist certification (Level 3)

I publish Aus Accounting MCP on PyPI. I contribute to the Meltano SDK and OpenAccountants.

Portfolio · Evidence and assurance · Email

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  1. xero-trial-balance-export xero-trial-balance-export Public

    Export reconciled Xero trial balances to validated CSV for Power BI, Excel and pandas.

    Python

  2. payday-super-checker payday-super-checker Public

    Experimental tool for checking Payday Super timing and preparing exceptions for review.

    Python

  3. aus-accounting-mcp aus-accounting-mcp Public

    Local MCP server for Australian accounting review: ATO small-business benchmarks, Payday Super 2026, refused Division 7A and synthetic SBR fixtures. Not advice.

    Python

  4. DrDebits DrDebits Public

    APES 110-aligned and TPB Code guardrails for LLM-assisted Australian tax work. Not advice.

    Python 1

  5. Ozzit Ozzit Public

    134 native Excel LAMBDA functions for AU modelling and GST arithmetic.

    Python

  6. awesome-australian-accounting-tech awesome-australian-accounting-tech Public

    Curated open-source tools and engines for Australian computational accounting.