Investimento inteligente Archives – Aprender sobre Finanças

A person reviewing a credit card financing agreement using a tablet

What it is

Are You Paying More on Your Loan? Understand the SAC

By Jeferson Santos April 29, 2026

What is SAC system loan amortization? Find out how it works, along with the pros and cons for your mortgage. Take the…

Credit card with financial graphics in the background, representing compound interest

What it is

Compound Interest: The Dangerous Side No One Tells You About (and How to Protect Yourself)

By Jeferson Santos April 19th, 2026

Understand what compound interest is and why it’s dangerous. Make financial decisions to avoid debt and grow your…

Person holding a credit card with financial graphs in the background

Tips

7 Ways to Reduce Income Tax on Investments

By Jeferson Santos April 19th, 2026

Learn how to reduce your income tax on investments and maximize your profits. Discover smart strategies to optimize your tax return and…

Hello! My name is Jeferson Santos. I have a bachelor’s degree in Information Technology and have been investing in stocks, real estate funds, and fixed-income securities for 6 years. I started with R$100, and by applying analysis and discipline, I managed to grow my net worth by more than 80%—and achieve the financial freedom I’d been seeking for so long. I created “Aprender sobre Finanças” to share what I’ve learned through hands-on experience—no fluff and no unrealistic promises. Here you’ll find real content from someone who actually invests.