ryanduguid/formulas
Excel formulas interpreter in Python.
Accountant in Newcastle, NSW. I build open source cash-flow examples and Australian accounting controls, with the workings available to inspect.
Repositories
ryanduguid/clawdog-calculator-api-integration-kit
Integration kit for the ClawDog Calculator-Constellation REST API — discover and invoke 20 SBRM-vocabulary calculators (FBT, depreciation) from any HTTP/JSON-RPC client.
ryanduguid/llm-tax-guardrails
APES 110 and TPB Code controls, DrDebits refusal patterns and evaluation fixtures for firms using LLMs in tax work.
ryanduguid/australian-accounting-skills
Preparation and review workflows for Australian public practice and contracting: BAS, month-end close, payroll and workpaper tie-outs. No lodgement or advice.
ryanduguid/pyexcel
Single API for reading, manipulating and writing data in csv, ods, xls, xlsx and xlsm files
ryanduguid/ach
ACH implements a reader, writer, and validator for Automated Clearing House (ACH) files. The HTTP server is available in a Docker image and the Go package is available.
ryanduguid/Arelle
Arelle open source XBRL platform
ryanduguid/pyxero
Python API for accessing the REST API of the Xero accounting tool.
ryanduguid/jsr354-ri
JSR 354 - Moneta: Reference Implementation
ryanduguid/au-tax-legislation-corpus
Code for building a corpus of in-force Commonwealth tax legislation, with source and provenance records.
ryanduguid/ryanduguid.github.io
Open-source engines, MCP servers and AI agent workflows for Australian tax and accounting.
ryanduguid/hledger
Robust, fast, intuitive plain text accounting tool with CLI, TUI and web interfaces.
ryanduguid/apd
Arbitrary-precision decimals for Go
ryanduguid/udecimal
A high-performance, high precision, zero allocation fixed-point decimal library for financial applications
ryanduguid/pm4py
Official public repository for PM4Py (Process Mining for Python) — an open-source library for exploring, analyzing, and optimizing business processes with Python.
ryanduguid/currency
Currency handling for Go.
ryanduguid/money
Utils for dealing with monetary amounts
ryanduguid/planning-analytics-model
An IBM Planning Analytics budgeting model published as source, with an offline engine that computes and tests it.
ryanduguid/release-policy
Reusable workflows for releases, provenance attestations and Python package checks.
ryanduguid/australian-accounting
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.
ryanduguid/python-accounting
Python Double Entry Accounting with a focus on IFRS Compliant Reporting
ryanduguid/github-agent-skills
GitHub workflow skills for Codex and Claude Code that require inspected evidence.
ryanduguid/accounting-review-pipeline
Runs deterministic month-end close checks on Xero trial-balance exports and produces exception packs for human sign-off.
ryanduguid/Furtim
Contribution fork of jo-inc/camofox-browser
ryanduguid/au-fpa-pack
Australian FP&A tools for openfpa (Jeff Brines / Guiderail), with 30 June years, Xero AU and GST/BAS.
ryanduguid/ofxtools
Python OFX Library
ryanduguid/python-sepaxml
SEPA Direct Debit XML generation in python
ryanduguid/schwifty
IBAN parsing and validation
ryanduguid/rust-decimal
Decimal number implementation written in pure Rust suitable for financial and fixed-precision calculations.
ryanduguid/ledger
Double-entry accounting system with a command-line reporting interface