COMPOUNDING INTEREST
Back to GlossaryDefinition
Interest calculated on the initial principle which also includes all accumulated interest from previous periods on a deposit or loan.
Summary
Compounding interest is the process where interest earned on an investment or loan is reinvested to earn additional interest over time. Unlike simple interest which is calculated only on the principal amount, compound interest is calculated on both the initial principal and all previously earned interest. This creates a 'snowball effect' where money grows at an accelerating rate, making it one of the most powerful concepts in finance for building wealth over time.
Usage Context
Understanding compound interest is crucial when learning about personal finance, investment planning, loan calculations, retirement savings, and making informed financial decisions throughout the course.
Common Confusions
- Thinking compound interest only applies to savings accounts, not loans or credit cards
- Confusing compound interest with simple interest calculations
- Not understanding that more frequent compounding periods lead to higher returns
- Believing that higher interest rates always matter more than longer time periods
- Assuming compound interest grows linearly rather than exponentially
