Version 1.1 — Australian Taxation & Wage Engine Release (2026-10-30)
Engineered and deployed the primary Australian taxation and wage solver suite, providing comprehensive coverage of individual income tax, statutory goods and services tax, and statutory payroll deductions:
- Pay Calculator Australia: Launched national take-home wage calculator with weekly, fortnightly, monthly, and annual frequency converters, incorporating the 2.0% Medicare levy and Super Guarantee.
- GST Calculator Australia: Delivered dual-direction 10% statutory GST tool with instant exclusive addition and reverse tax extraction.
- Australian Income Tax Calculator: Integrated official ATO resident and non-resident progressive tax brackets with stage bracket modeling.
- Tax Refund Estimator: Added annual tax liability calculation comparing PAYG employer withholdings against taxable net income.
- PAYG Withholding Tax Calculator: Added employer payroll withholding schedules aligned with ATO weekly formulas.
- HECS-HELP Debt Repayment Calculator: Programmed official Commonwealth repayment income percentage bands.
- Capital Gains Tax (CGT) Calculator: Deployed capital asset gain analyzer with the 50% statutory individual discount rule.
- Fuel Tax Credit Calculator: Deployed business fuel tax credit claiming calculator for on-road and off-road eligible machinery.
Version 1.0 — Foundational Architecture & Institutional Standards (2026-10-30)
Initial deployment of the core UtilityTools AU static infrastructure, design tokens, and transparency documentation:
- Static Site Architecture: Single-source static generator engine with zero external framework overhead and instant paint performance.
- E-E-A-T Developer Dossier: Established verified developer attribution for David Miller across five independent engineering profiles.
- Statutory Reference Methodology: Published formal mathematical documentation and IEEE 754 precision standards.
- Accessibility Conformance: Completed WCAG 2.1 AAA contrast audit and screen reader test harness validation.
- Security & Hygiene: Configured 10-rule Apache security directives, strict robots.txt access control, and absolute non-trailing slash canonical routing.