If I Hold ₹5 Lakh in T-Bills for One Year, How Much Do I Earn?

Let's Calculate Your T-Bill Earnings on ₹5 Lakh

Many people think government securities are boring and offer tiny returns. You might believe your money will barely grow. But let’s look at the real numbers. Knowing what is a G-Sec in India can open up a very safe and reliable investment option. A Government Security, or G-Sec, is simply a loan you give to the government. In return, they promise to pay you back with interest.

So, if you invest 5 lakh rupees in a Treasury Bill (T-bill) for one year, how much will you actually make?

Treasury Bills don't pay interest like a fixed deposit. Instead, they are sold at a discount to their face value. You get the full face value back when they mature. The difference is your profit.

Let's use a realistic example. We will assume the annual yield for a 364-day T-bill is 7.00%. This rate changes based on RBI auctions, but 7.00% is a reasonable figure.

1. Face Value: 5,00,000 rupees. This is the amount you will get back after one year.
2. Assumed Yield: 7.00% per year.
3. Calculate the Discount: The discount is the profit you make. The formula is:
   Discount = Face Value x Yield x (Days to Maturity / 365)
   For a 364-day T-bill: Discount = 5,00,000 x 0.07 x (364 / 365) = 34,904 rupees.
4. Calculate Your Purchase Price: This is what you actually pay today.
   Purchase Price = Face Value - Discount
   Purchase Price = 5,00,000 - 34,904 = 4,65,096 rupees.

So, you would pay about 4,65,096 rupees today. In 364 days, the government will deposit 5,00,000 rupees into your account. Your total earning is 34,904 rupees. That's a safe, predictable return backed by the Government of India.

What is a G-Sec in India and Why Does It Matter?

A Government Security (G-Sec) is a tool the government uses to borrow money. When the government needs funds for projects like building roads or hospitals, it issues these securities. When you buy a G-Sec, you are lending money to the government.

Why should you care? Because they are one of the safest investments available. They come with a sovereign guarantee, which means the government guarantees the repayment of your money. The risk of the Indian government not paying back its loan is practically zero. This makes G-Secs a fantastic option for protecting your capital while earning a steady income.

There are mainly two types of G-Secs issued by the central government:

• Treasury Bills (T-Bills): These are for short-term borrowing, with maturities of 91 days, 182 days, or 364 days.
• Dated G-Secs or Government Bonds: These are for long-term borrowing, with maturities ranging from 5 to 40 years.

Understanding Different Types of Government Securities

To make the best choice, you need to know the differences between the major types of G-Secs. Each serves a different purpose for your investment plan.

Treasury Bills (T-Bills)

T-bills are perfect for short-term goals. As we saw, they are zero-coupon securities. This is a fancy way of saying they don't pay regular interest. All your profit comes at the end when you get the full face value back. Because their tenure is short, they are very low risk.

Dated G-Secs (Government Bonds)

These are the workhorses for long-term investors. If you want a regular, predictable income stream, these are for you. They pay interest, called a coupon, every six months. For example, a bond with a 7.5% coupon will pay you that interest rate on its face value every year, split into two payments.

How Inflation Affects Your G-Sec Returns

Earning a 7.00% return sounds great. But it's not the full story. You must also think about inflation. Inflation is the rate at which the prices of goods and services increase, reducing the purchasing power of your money.

Your real return is what you earn after accounting for inflation. The formula is simple:

Real Return = Nominal Return - Inflation Rate

If your T-bill yield is 7.00% and the average inflation for the year is 5.5%, your real return is only 1.5% (7.00% - 5.5%). This means your money's actual purchasing power only grew by 1.5%. While this is still a positive return, it shows why you must always compare your earnings against inflation.

Your investment isn't truly growing unless it's beating inflation. Otherwise, your money is just running to stand still.

Step-by-Step: How to Buy T-Bills in India

Buying government securities is easier than ever. Here’s a simple process you can follow:

1. Get a Demat Account: First, you need a demat account. This is an electronic account that holds your shares and securities. You can open one with any major stockbroker.
2. Use the RBI Retail Direct Scheme: A fantastic option for small investors is the RBI's Retail Direct Scheme. It lets you buy G-Secs directly from the source, the Reserve Bank of India, without a broker in the middle. You can register on the official RBI portal.
3. Place a Non-Competitive Bid: As a retail investor, you don’t need to be an expert to bid in the auctions. You can place a non-competitive bid. This means you agree to accept the weighted average price that is discovered in the auction. It removes the guesswork.
4. Auction and Allotment: The RBI holds auctions for T-bills every week. If your bid is accepted, the amount will be taken from your linked bank account, and the T-bills will appear in your demat account.
5. Hold Till Maturity: Simply hold the T-bills. On the maturity date, the full face value will be automatically credited to your bank account. It's a very smooth process.

What About Taxes on Your T-Bill Earnings?

The profit you make from T-bills is not tax-free. Since the maximum maturity is 364 days, the gains are classified as Short-Term Capital Gains (STCG). This gain (the discount amount, which was 34,904 rupees in our example) is added to your total income for the financial year. It is then taxed at the rate applicable to your income tax slab. There is no Tax Deducted at Source (TDS) on G-Secs, but you are responsible for declaring the income when you file your tax returns.