Blog
Articles to help you understand your finances better, with practical examples and direct links to related calculators.
Published on September 01, 2026
How to Calculate Compound Interest (Formula and Monthly Contributions)
Understand the compound interest formula, how monthly contributions factor in, and see an example comparing the result with simple interest.
Published on July 22, 2026
Pay yourself first: the habit that comes before any investment
The rule behind classics like The Richest Man in Babylon: set aside part of your income before spending, not whatever is left over at month's end. How to automate it and what to do with that money afterward.
Published on July 20, 2026
Emergency fund: how much to save and where to invest it
How many months of expenses to keep in your emergency fund and where to park that money so it doesn't lose value while it sits idle, without giving up same-day access.
Published on July 19, 2026
Snowball vs. avalanche: which debt payoff strategy to use
Two popular strategies for paying off several debts at once — snowball and avalanche — lead to different results in time and interest paid. Understand when each one makes more sense.
Published on July 19, 2026
How to get out of credit card revolving debt
Credit card revolving debt is one of the most expensive credit lines in Brazil. Understand why the interest is so high and see a practical path to pay it off.
Published on July 19, 2026
Brazil's INSS transition rules explained: points, minimum age and toll
Understand the five rules that determine when you can retire under Brazil's INSS after the 2019 reform — points, progressive minimum age, 50% toll, 100% toll and the permanent rule.