The Time Value of Money: Why ₹100 Today is Worth More Than ₹100 Tomorrow

The Core Idea: The "Opportunity Cost"

If I offered you ₹10,000 today or ₹10,000 one year from now, which would you take? You’d choose today, of course. Why?

• Earning Power: If you have the money today, you can invest it (perhaps in a US ETF through our GIP) and earn interest. By next year, that ₹10,000 could be ₹11,000.

• Inflation: Prices go up. ₹10,000 next year will likely buy fewer groceries than it does today.

This difference in value over time is the "Time Value of Money."

Present Value (PV) vs. Future Value (FV)

These are the two pillars of financial math:

• Future Value (FV): This is what your money grows into. If you save ₹5,000 a month in a SIP, the FV is the total amount you’ll have in 10 years.

• Present Value (PV): This is the reverse. If you want to have ₹1 Crore for your child’s foreign education in 15 years, the PV is the amount of money you need to invest today to reach that goal.

The Power of "Compounding Frequency"

The math isn't just about the interest rate; it’s about how often that interest is added back to your account.

• If your interest is calculated yearly, your money grows.

• If it’s calculated monthly or daily, your money grows even faster because you are earning "interest on your interest" more often.

• In Compounding, follow the rule of 72. When the interest rate x time = 72, your money doubles. For example, if you earn 10% on your investment, then your investment will double in 7.2 years. 72/10 = 7.2 years.