Web AppFeatured2025
IncomeTaxTT
Browser-based calculator for Trinidad & Tobago residents to estimate PAYE, annual income tax, quarterly payments, and business taxes across 26 years of historical IRD rules.
Overview
IncomeTaxTT is a free, privacy-first Progressive Web App that lets T&T residents estimate their income tax liability across four modes: Annual, PAYE, Quarterly, and Business. All calculations run entirely in the browser — no financial data ever leaves the device.
Highlights
- 26 years of verified tax data (2001–2026) sourced from the IRD, Ministry of Finance, and NIBTT, covering year-specific rules for personal allowances, NIS, Health Surcharge, Business Levy, and Green Fund Levy
- PDF and CSV export, shareable links with embedded QR codes, and year-over-year comparison
- Offline-capable PWA with Lighthouse-audited performance
- Accessibility-first build: keyboard navigation, screen reader support, and axe-core auditing
- End-to-end coverage with Playwright; unit tests with Vitest
