Question 1

What is compound interest and how does it work?

Accepted Answer

Compound interest is the interest calculated on both the initial principal amount and the accumulated interest from previous periods. It is essentially earning 'interest on interest', which allows your wealth or savings to grow exponentially over time compared to simple interest.

Question 2

How does compounding frequency affect my returns?

Accepted Answer

Compounding frequency refers to how often interest is calculated and added back to the principal. The more frequently interest compounds (e.g., daily instead of annually), the faster your balance grows. Daily compounding yields slightly more returns than monthly compounding, which in turn yields more than quarterly or annual compounding under the same nominal rate.

Question 3

What is the difference between Simple Interest and Compound Interest?

Accepted Answer

Simple interest is calculated strictly on the original principal amount for the entire duration. Compound interest calculates interest on the principal plus all interest earned previously. Compound interest creates an exponential growth curve, whereas simple interest increases linearly.

Question 4

How do regular monthly or annual deposits accelerate compounding?

Accepted Answer

Adding regular deposits (additions) regularly increases the principal base upon which your interest is calculated. By contributing monthly or yearly, you compound not only your initial capital but also all subsequent additions and their interest, leading to a much larger final maturity value.

Question 5

What is the Rule of 72?

Accepted Answer

The Rule of 72 is a quick, handy formula to estimate how long it will take for your money to double at a given annual interest rate under compounding. You simply divide 72 by your expected annual interest rate. For example, an investment with a 12% annual return rate will double in approximately 6 years (72 / 12 = 6).

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