What is Compound Interest really?

You may have heard that compound interest is the “8th wonder of the world,” but what does that mean for real people like us? In simple words, compound interest is interest earned on interest already earned in previous years.

Simple vs Compound Interest

• Simple interest – Earn interest only on original amount
• Compound interest – Earn interest on principal + interest accumulated

Why compounding feels slow initially

Example: ₹10,000 invested at 12% per year

• Year 1 → ₹11,200
• Year 10 → ₹31,058
• Year 20 → ₹96,463
• Year 25 → ₹1,67,767

First few years → small progress. Later years → exponential growth.

Start Early — The Real Secret

Compare two investors:

• Person A (age 25) invests ₹5,000/month for 20 years → ₹50 lakhs
• Person B (age 35) invests the same → ₹15 lakhs

10 years delay costs ₹35 lakhs!

Rules for compounding success

• Start early
• Stay consistent
• Stay invested long term

Why people fail

• Start late
• Pause when markets fall
• Withdraw early

Compounding breaks if interrupted.