CalculaFinanças
A Portuguese financial calculator platform with tools for salary, taxes, mortgages, real estate, and personal finance — all free and regularly updated.
Tech Stack
Overview
CalculaFinanças is a financial calculator platform built for Portuguese users, offering a wide range of free tools for personal and business finance — from net salary and IRS calculations to mortgage simulations and real estate tax estimators.
The platform covers everything from employment taxes and self-employed income (recibos verdes) to property transfer taxes (IMT), rental yield analysis, savings projections, and early retirement feasibility — all updated with official Portuguese financial data.
The goal was to build something genuinely useful: a fast, no-registration-required resource that gives people accurate financial answers in seconds, with a clean and organised interface that makes complex calculations feel simple.
Key Responsibilities
- Designed and developed the full platform from scratch using Next.js
- Built a wide range of financial calculators covering salary, taxes, mortgages, and real estate
- Kept all tools updated with official Portuguese financial data and rates
- Structured the platform into clear categories for easy navigation
- Optimised for performance, SEO, and full responsiveness across all devices
Key Features
- Net salary calculator with IRS and social security deductions
- Mortgage simulator with Euribor variable rate support
- Real estate tools: IMT, IMI, capital gains, and rent vs. buy comparison
- Self-employed income and recibos verdes tax calculator
- Savings, compound interest, and early retirement projections
- 100% free — no registration required
