A modern web application for calculating Bangladesh income tax for Fiscal Year 2025-26 with bilingual support (English + Bangla). Features include accurate tax calculations with exemptions, progressive slabs, rebates, and investment planning tools.
- 📊 Accurate Tax Calculations: FY 2025-26 Bangladesh tax rules with gender-based exemptions
- 🌐 Bilingual Support: Full English and Bangla translations
- 💰 Rebate Maximize Calculator: Plan investments for maximum tax rebate
- 📱 Responsive Design: Glassmorphic UI that works on all devices
- 📈 Detailed Breakdown: Tax slab analysis, rebate calculations, and investment recommendations
- Formula:
min(Gross Income / 3, BDT 450,000) - One-third of gross income or BDT 450,000, whichever is lower
- Formula:
Gross Income - Exempted Income
| Income Range (BDT) | Tax Rate |
|---|---|
| 0 — 350,000 | 0% |
| 350,001 — 450,000 | 5% |
| 450,001 — 850,000 | 10% |
| 850,001 — 1,350,000 | 15% |
| 1,350,001 — 1,850,000 | 20% |
| 1,850,001 — 3,850,000 | 25% |
| 3,850,001 and above | 30% |
- Formula:
min(3% of Taxable Income, 15% of Investment, BDT 1,000,000) - Minimum of three values is selected
- Final Tax Payable:
Tax Before Rebate - Rebate - Net Due:
Final Tax - Employer Deposited Tax - Effective Tax Rate:
(Final Tax / Gross Income) × 100%
Open index.html in any modern web browser - no build process required!
Live Demo: View on GitHub Pages
finsource-maximize-rebate/
├── index.html # Main tax calculator
├── rebate-maximize-calculator.html # Investment planning tool
├── script.js # Main calculator logic
├── rebate-maximize-script.js # Investment calculator logic
├── styles.css # Shared styles
└── tax-config-fy-2025-26.json # Tax configuration
Contributions are welcome! Create a pull request on GitHub
This calculator is for informational purposes only. For accurate tax filing, consult with a certified tax professional or the Bangladesh National Board of Revenue (NBR).
Made with ❤️ by FinSource | FY 2025-26