The Pure Discount Play - Zero-Coupon Bonds

While traditional bonds pay you "rent" in the form of regular coupons, Zero-Coupon Bonds (often called "zeros" or "accrual bonds") take a different approach. They pay no periodic interest at all.

Instead, they are issued at a deep discount to their face value. Your entire profit is baked into the price: you buy the bond for much less than it's worth today and receive the full amount at the end.

1. How the Math Works: Buying ₹1,000 for ₹600

In a zero-coupon bond, the interest is "imputed." This means the interest is automatically reinvested and compounded within the bond's price.

• The Entry: You buy a 10-year bond with a ₹1,000 face value for only ₹600.
• The Holding Period: You receive zero cash payments for 10 years.
• The Exit: At maturity, the issuer pays you the full ₹1,000.
• The Return: Your ₹400 profit represents the compounded interest you earned over a decade.

2. The "Phantom Income" Tax Trap

Even though you don't receive a single rupee in cash until the bond matures, the tax authorities (like the IRS or India's Income Tax Dept) generally won't wait.

• Imputed Interest: You are required to report the bond's "accrued value" as taxable income every year.
• The Problem: This creates Phantom Income-you owe actual cash for taxes on money you haven't actually touched yet.
• 2026 Strategy: Professional investors often hold zero-coupon bonds in tax-advantaged accounts (like an IRA or 401k) to avoid paying these annual "phantom taxes".

3. High Sensitivity: The Double-Edged Sword

Zero-coupon bonds are the most volatile instruments in the bond market. Because there are no coupons to "cushion" the price, they react violently to interest rate changes.

• Duration: In finance, the "duration" of a zero-coupon bond is exactly equal to its time to maturity.
• The Result: If interest rates fall, the price of a zero-coupon bond will skyrocket much faster than a regular bond. Conversely, if rates rise, they crash much harder.

4. Why Use Zeros in 2026?

• Goal-Based Investing: They are perfect for meeting a specific future expense, like a child’s college tuition in 2035 or a retirement milestone.
• No Reinvestment Risk: With regular bonds, you have to find a place to reinvest your coupon checks. With zeros, your "interest" is automatically locked in at the original rate.
• STRIPS: Many investors buy Treasury STRIPS, which are regular government bonds that have been "stripped" of their coupons and sold as individual zero-coupon pieces.

Summary: Coupon vs. Zero-Coupon