Treasury Bills in India: The Complete Investor Guide (2026)

1The Hidden Investment Most Indians Ignore

Most Indians park short-term money in savings accounts or Fixed Deposits. A savings account offers 2.5–4% per year and instant access. A bank FD locks your money for a few months to a few years and pays 6.5–7.5%. These are the two instruments almost every Indian defaults to for short-term parking.

Few realise that the Government of India regularly borrows money for short periods — as short as 91 days — and allows ordinary investors to participate directly. The instrument is called a Treasury Bill, or T-Bill. And unlike a bank FD, there is zero credit risk — your counterparty is literally the Government of India backed by the Reserve Bank of India.

Why didn't you hear about this earlier? Historically T-Bills were available only to large institutions: banks, primary dealers, insurance companies, and mutual funds. Since 2021, the RBI opened the Retail Direct platform, allowing any Indian citizen to buy government securities — including T-Bills — with as little as ₹10,000. Yet awareness remains extremely low.

This guide changes that. Whether you are looking for a safe home for your emergency fund, a better alternative to a short-term FD, or a government-backed instrument that requires zero brokerage from the RBI, Treasury Bills deserve a place in your financial toolkit.

2Treasury Bills in 60 Seconds

If you want the complete picture, read every section below. If you want the essentials right now, here is the T-Bill snapshot:

3What Are Treasury Bills?

Imagine you need ₹100 from a friend right now but will not be able to repay it for three months. To make the deal worth your friend's while, you offer to repay ₹102 after 91 days instead of ₹100 today. Your friend pays ₹98 or ₹99 now and receives ₹100 later. The difference is the "interest" — expressed as a discount on the final value.

Treasury Bills work exactly the same way, except your "friend" is the Government of India and the amounts are in lakhs or crores. The government needs short-term cash to bridge the gap between when money comes in (taxes, revenues) and when bills are due (salaries, infrastructure payments). Instead of waiting, it borrows by issuing T-Bills.

A T-Bill is a promise: "I (the Government of India) will pay you ₹10,000 exactly 91 days from today. You can pay me less than ₹10,000 now." The price you pay today is called the issue price. The ₹10,000 you receive at maturity is the face value. The difference is your profit.

T-Bills do not pay interest in the traditional sense. They pay no coupons, no monthly income, no quarterly dividends. Your entire return comes at the end, as a lump sum, when you receive the face value. This is called a zero-coupon or discount instrument.

Key term: Zero-coupon means no periodic interest payments. All return is earned through the difference between purchase price (issue price) and maturity value (face value).

4Why Does the Government Issue Treasury Bills?

The government collects taxes (income tax, corporate tax, GST) throughout the year, but the money does not arrive evenly. Big chunks come in certain months while daily expenses — salaries, road projects, welfare payments — never stop. When outflows are greater than inflows for a short period, the government needs to borrow quickly.

This is where T-Bills come in. The RBI holds weekly auctions every Wednesday where investors lend money to the government for 91, 182, or 364 days. Large institutions (banks, insurance companies) participate directly. Since 2021, any Indian citizen can also participate through the RBI Retail Direct platform.

The best part for retail investors: you do not need to figure out the right price or yield. You simply say how much you want to invest, and the system automatically gives you the same rate that big institutions received at that auction.

• Auctions happen every Wednesday.
• Retail investors submit a simple amount — no bidding expertise needed.
• You get the same yield as large banks and institutions.
• The government announces its T-Bill schedule at the start of each financial year — so you always know when the next auction is.

5How Treasury Bills Work — The Discount Mechanism

This is the most important concept. Every rupee of profit you earn from a T-Bill comes from buying it below its face value and holding it to maturity.

The formula the RBI uses (India follows the 365-day convention, unlike the US which uses 360 days):

• Face Value = ₹10,000 per lot (minimum denomination)
• Discount Yield = annualised yield discovered at auction (e.g., 6.75%)
• Days = tenure (91, 182, or 364)
• Issue Price = what you pay today

Issue Price = Face Value × [1 − (Discount Yield% / 100 × Days / 365)]

6Types of Treasury Bills in India

India currently issues three types of Treasury Bills, distinguished entirely by their tenure:

Historically, India also issued 14-day and 182-day Treasury Bills (called CMBs — Cash Management Bills). CMBs are issued on an ad-hoc basis when the government needs emergency short-term funds. They are not regularly available to retail investors.

7Tax on T-Bill Gains — What You Keep

Your profit from a T-Bill (the difference between the face value and what you paid) is treated as a capital gain. Because T-Bill tenures are under 12 months, this is a Short-Term Capital Gain — added to your annual income and taxed at whatever income tax slab you fall into.

There is no tax deducted at source when you invest through RBI Retail Direct. You simply declare the gain when filing your ITR at the end of the year.

At 30% tax, a 6.81% pre-tax yearly rate becomes 4.77% after tax. Before choosing a T-Bill over an FD, check which gives a better post-tax return for your income slab.

8Treasury Bills vs Fixed Deposits

This is the most important comparison for most Indian retail investors. T-Bills and bank FDs are the two leading short-term capital-preservation instruments. They look similar on the surface — both are low-risk, fixed-return instruments. But there are meaningful differences.

Pro tip: For amounts above ₹5 lakh, T-Bills eliminate the small but real credit risk of bank FDs. When parking ₹50 lakh+ of short-term funds, institutional treasuries universally prefer T-Bills over bank FDs for this very reason.

9Treasury Bills vs RBI Floating Rate Savings Bonds

RBI Floating Rate Savings Bonds (FRSB) currently pay 8.05% per annum (Jan–Jun 2026), reset every 6 months linked to the NSC rate. T-Bills yield 6.70–6.85%. So why would anyone choose T-Bills over FRSB?

The answer: T-Bills win when you need your money back within a year. FRSB is strictly a long-term instrument with a 7-year lock-in. Using FRSB for short-term parking is impossible — you cannot exit for 4 years even if you are a senior citizen. T-Bills give you liquidity every 91 days. If you know you need the money in 6 months, T-Bills are the only logical choice of the two.

10Treasury Bills vs Government Bonds (G-Secs)

Government Securities (G-Secs) and T-Bills are both issued by the Government of India through the RBI. They carry identical credit risk (zero). The difference is duration.

Key insight: When interest rates are expected to fall, long-duration G-Secs deliver capital appreciation because their price rises. T-Bills have no such capital gain potential — you always receive exactly the face value at maturity.

11Treasury Bills vs Debt Mutual Funds

Debt mutual funds that invest in T-Bills are called Liquid Funds or Overnight Funds. After the 2023 tax change, debt mutual fund gains are also taxed at slab rate (no longer 20% with indexation). This levels the playing field between direct T-Bill investment and T-Bill-based mutual funds.

For amounts above ₹10,000 and investors comfortable with RBI Retail Direct, direct T-Bills often beat liquid funds on net yield due to the zero expense ratio advantage.

12Treasury Bills vs Arbitrage Funds

Arbitrage funds exploit price differences between cash and futures markets. Their returns track the cost of carry and typically yield 6.5–7.5% in bull-run conditions. The key advantage: they are taxed as equity (15% STCG if held < 1 year; 10% LTCG if > 1 year) rather than as debt.

Verdict: For investors in the 30% tax bracket, arbitrage funds often deliver higher post-tax returns than T-Bills for short-term parking (due to equity taxation). For investors in lower slabs (5%, 20%), T-Bills are equally or more competitive. T-Bills have the advantage of absolute capital certainty; arbitrage fund NAVs rarely but occasionally dip in stressed markets.

13How to Invest in Treasury Bills — Every Method Explained

There are five ways to invest in T-Bills in India. Each method has different costs, convenience, and minimum requirements.

14Minimum Investment and Lot Structure

Treasury Bills are issued in denominations of ₹100 per unit. The minimum purchase lot is 100 units, making the minimum face value ₹10,000. All investments must be in multiples of ₹10,000.

When you submit a bid, you specify the face value amount — not the amount you will pay. The issue price (what you actually pay) will be slightly less than the face value. For example, if you bid for ₹10,000 face value of a 91-Day T-Bill at a 6.70% yield, you will be debited approximately ₹9,833.

There is no maximum limit for retail non-competitive bids. Institutional investors and primary dealers can bid in the competitive segment in much larger amounts.

15Taxation of Treasury Bills

The profit you earn from a T-Bill (face value minus what you paid) is treated as a capital gain. Since T-Bill tenures are under 12 months, it is a short-term capital gain — added to your annual income and taxed at your income slab rate.

Good news: no tax is deducted at source when you invest through RBI Retail Direct. You declare the gain yourself when you file your annual Income Tax Return. When investing through a broker or mutual fund, different TDS rules may apply.

16Can You Sell a T-Bill Before It Matures?

Yes. Unlike a bank FD — where breaking it early means a penalty — you can sell a T-Bill in India's government bond secondary market before its maturity date. There is no penalty.

However, the price you get depends on current interest rates at the time you sell. If rates have gone up since you bought, you may receive slightly less than expected. If rates have gone down, you may get a bit more. For most retail investors, the difference is small.

The simplest strategy: match the T-Bill tenure to when you actually need the money. If you need cash in 3 months, buy the 91-day T-Bill and hold it. This avoids the secondary market entirely and gives you the exact return you expected.

17Risks of Treasury Bills — The Balanced View

T-Bills are extremely safe instruments, but no investment is completely without risk. Here is an honest assessment:

• Reinvestment Risk: When your 91-day T-Bill matures, the next auction may offer a lower yield if the RBI has cut rates. This is the most real risk for T-Bill investors — you planned for 6.70% but the new auction only gives 6.20%.
• Inflation Risk: T-Bill yields of 6.7–6.85% may not beat inflation every year. After paying 30% tax, your effective return drops to around 4.7–4.8% — which could be below inflation in certain years. T-Bills protect the rupee value of your money, but not necessarily its buying power.
• Opportunity Cost: Money in a 91-day T-Bill at 6.7% could miss a 12–15% gain in equities. For long-term investors, consistently choosing T-Bills over equity is an expensive habit over 10–20 years.
• Platform Outage: RBI Retail Direct is a government portal and generally reliable. But like any online platform, temporary outages are possible. This is a minor practical consideration, not a financial risk.
• Zero Default Risk: The Government of India has never failed to repay its domestic borrowings. This risk is theoretically there but practically irrelevant.

18Who Should Invest in Treasury Bills?

T-Bills are not for everyone, but for the right investor they are excellent. Here are the investor profiles that benefit most:

• Emergency Fund Investors: Parking your 6-month emergency fund in 91-day T-Bills gives sovereign safety, beats savings accounts, and keeps money accessible quarterly. Significantly safer than bank FDs for large amounts above ₹5 lakh.
• Conservative Short-Term Investors: If you need money in 3–12 months (upcoming marriage, home purchase down-payment, tuition fee) and cannot afford any capital loss, T-Bills are ideal. The government guarantee means zero chance of losing your principal.
• High-Earners with Large Short-Term Surpluses: For individuals or businesses with idle cash above ₹5 lakh, T-Bills offer complete safety — bank deposits above ₹5 lakh have no government insurance cover, but T-Bills are backed fully.
• Retirees Holding Cash Reserves: Retirees who keep 1–2 years of living expenses in cash can use a T-Bill ladder instead of a savings account. Higher returns, sovereign safety, and money available every 91 days.
• Investors in Lower Tax Slabs: At 0% or 5% income tax, T-Bill returns remain almost fully intact. Combined with sovereign safety, T-Bills are very competitive with bank FDs for these investors.

19Who Should Avoid Treasury Bills?

T-Bills are not suitable for every investor or every financial goal. Consider alternatives if:

• You are building long-term wealth (10+ year horizon): Equity mutual funds and index funds have historically delivered 12–15% CAGR over long periods. Allocating growth money to T-Bills at 6.7% is a significant long-term cost.
• You are in the 30% tax slab and have a short investment horizon: Arbitrage funds deliver similar gross returns at 15% STCG rate — materially higher post-tax returns for high-slab investors.
• You need very small amounts: Minimum ₹10,000 lot may be too large for some savers. Liquid funds start at ₹500.
• You want monthly income: T-Bills are zero coupon — no periodic cash flows. If you need monthly income, a non-cumulative FD or an MIS (Monthly Income Scheme) at the Post Office is more appropriate.
• You are uncomfortable with direct investing: RBI Retail Direct requires basic digital literacy, linking a bank account, and understanding the auction process. If this feels overwhelming, a liquid fund achieves similar results with less friction.

20Real-Life Scenarios — How T-Bills Work in Practice

Abstract concepts become clear through examples. Here are ten realistic scenarios showing exactly how T-Bills work:

21The T-Bill Laddering Strategy

T-Bill laddering is a sophisticated strategy where you spread your investment across all three T-Bill tenures — 91, 182, and 364 days — so that a portion matures every quarter. This is especially useful for:

(1) Retirees who need quarterly liquidity without sacrificing yield on the longer-duration portions.

(2) HNIs who want to manage reinvestment risk by staggering the maturity dates.

(3) Corporate treasuries maintaining a cash runway with known liquidity windows.

• Divide your total T-Bill allocation into three equal (or weighted) portions.
• Invest Portion 1 in the 91-day T-Bill — matures in 3 months.
• Invest Portion 2 in the 182-day T-Bill — matures in 6 months.
• Invest Portion 3 in the 364-day T-Bill — matures in 12 months.
• When the 91-day T-Bill matures, reinvest in a new 364-day T-Bill (or use the funds if needed).
• Repeat — every 91 days you have a scheduled maturity for liquidity or reinvestment.

Use the T-Bill Ladder mode in our T-Bill Calculator to model your exact ladder with custom allocations and yields.

22Things Most Investors Never Hear About T-Bills

Most guides cover only the basics. Here are five things that experienced investors and financial professionals quietly do with T-Bills.

• Every bank in India holds T-Bills: Banks are required by law to keep a portion of their deposits in safe government securities — and T-Bills are the preferred choice. This is why T-Bills are considered the gold standard of safety in Indian finance.
• T-Bill yields have a natural floor: Because T-Bills are used by banks for day-to-day borrowing from the RBI, their yields rarely fall much below the RBI's key interest rate. This means T-Bills become especially attractive when the RBI starts cutting rates — you can lock in a higher yield for a full year before rates fall.
• Rate-cut timing strategy: If the RBI is expected to cut rates, buying a 364-day T-Bill right before the cut locks in today's higher yield for an entire year. This can add 30–50 extra basis points (0.30–0.50%) compared to repeatedly buying 91-day T-Bills after the cuts.
• SIP safety buffer: Some investors park 3 months of their SIP contributions in T-Bills so that equity SIPs never pause due to a temporary cash shortfall — the T-Bills act as a ready-to-deploy reservoir.
• Company idle cash: Businesses often hold cash between large payments. T-Bills are a much better parking spot than a bank savings account — higher yield, zero credit risk, and T+1 settlement.

23Common Mistakes and Myths

"T-Bills are only for big investors." — False. RBI Retail Direct allows retail investors to participate with ₹10,000. The minimum is the same as most bank FDs.

"T-Bills give very low returns." — Partial truth. Gross yields of 6.7–6.85% are competitive with many bank FDs of similar tenure. The real limitation is that T-Bills do not beat inflation significantly over the long term — but that is their design intention.

"Buying T-Bills is complicated." — False. The RBI Retail Direct process is comparable in complexity to opening a bank FD online. One-time KYC, then a few clicks for each purchase.

"T-Bills are less safe than FDs because they are traded instruments." — False. The trading aspect relates to secondary market liquidity, not safety. A T-Bill held to maturity carries zero credit risk — it is a direct claim on the Government of India. A bank FD above ₹5 lakh is not fully insured.

"I should always choose the longest T-Bill tenure for better returns." — Depends. The 364-day T-Bill does yield ~15 bps more than the 91-day, but it also locks your money for a full year. Use tenure that matches your actual cash flow needs.

"T-Bills have no risk." — Partially true. Zero credit risk. But reinvestment risk and inflation risk are real and should be acknowledged.

24Decision Framework: Should You Invest in Treasury Bills?

Use this decision framework to determine if T-Bills belong in your portfolio:

Bottom line: T-Bills are not glamorous. They will not make you rich. But for the right goal — safety, short-term parking, and capital certainty — they are among the finest instruments available to Indian investors, and most people have never used them.