bolorundurovj/LagosFile

An offline-first desktop application for Lagos-based individual taxpayers filing Direct Assessment returns under the Nigeria Tax Act (NTA) 2025. # LagosFile **LagosFile** is an offline-first desktop application for Lagos-based individual taxpayers filing Direct Assessment returns under the Nigeria Tax Act (NTA) 2025. It guides you through income entry, capital allowances, deductions, and a full tax computation, then helps you file directly on the LIRS e-Tax portal via a companion browser extension. Built with **Angular 19** and **Tauri 2** (Rust backend). Your data never leaves your machine. --- ## Features - **PIN-protected encrypted database** - SQLite encrypted at rest; your PIN derives the key - **Four-step filing wizard** - Income -> Capital Allowances -> Deductions & Reliefs -> Review & Confirm - **NTA 2025 computation engine** - Progressive tax bands, minimum tax, CGT exemptions, rent relief - **Foreign income with FX conversion** - Automatic CBN-rate waterfall (API -> cache -> manual) - **Filing history & amendments** - Immutable confirmed filings; amendments create new linked records - **Export engine** - PDF computation statement, CSV line-item export, JSON full record - **LIRS portal integration** - Browser extension auto-fills the e-Tax portal from your computed filing - **Document attachments** - Attach PDFs/images to income entries and relief claims (100 MB limit) - **Backup & restore** - Encrypted database backup with full restore support - **Configurable tax parameters** - Edit bands, rates, and caps in-app without a software release - **Year-over-year tax chart** - Dashboard chart showing tax liability across filing years - **Light / dark / system theming** --- ## Screenshots Click any section below to expand. Dashboard — Year-over-year tax overview and filing status Filing History — Confirmed filings, amendments, and exports PIN Entry with Biometric — Unlock with PIN or Windows Hello / Touch ID Configuration — Customise tax bands, rates, and caps --- ## Tech Stack | Layer | Technology | |---|---| | Frontend | Angular 19 (standalone components, Angu …