Treasury Bills Investment 2026 - Income Tax Guide for Indians

What Happened?

The Government of India conducted a Treasury Bills auction in August 2026 with notified amounts of ₹9,000 crore (91-day), ₹8,000 crore (182-day), and ₹7,000 crore (364-day) respectively. The auction received competitive bids exceeding notified amounts across all three tenors, with weighted average yields ranging from 5.25% to 5.73%. This reflects active participation from institutional and individual investors seeking short-term, low-risk government securities.

Background & Legal Context

What are Treasury Bills?

Treasury Bills (T-Bills) are short-term securities issued by the Government of India through the Reserve Bank of India (RBI). They are issued at a discount and redeemed at face value on maturity. The difference between purchase price and redemption value constitutes the interest income earned by investors.

Income Tax Treatment Under IT Act 2025

Under the Income Tax Act 2025, income earned from Treasury Bills is taxed as follows:

• Nature of Income: The discount received on T-Bills (difference between face value and purchase price) is treated as interest income under Section 15 of the IT Act 2025, classified as income from other sources.
• Applicable Section: Section 56(1)(iii) of the IT Act 2025 covers income from securities, including Treasury Bills. The income is taxable during the financial year in which the T-Bill matures or is sold, not when purchased.
• TDS (Tax Deducted at Source): While T-Bill interest is generally exempt from TDS at the time of issuance by RBI, banks and financial institutions paying T-Bill proceeds must follow relevant TDS provisions under Section 193 (on interest) or Section 194A (on other income) depending on the payer.
• Accrual Method: For taxpayers following the accrual basis of accounting (particularly businesses and professionals), the discount accrued during the financial year may be taxable even if the T-Bill hasn't matured.

Changes from Previous Law (IT Act 1961)

The Income Tax Act 2025 maintains the same treatment as the 1961 Act for government securities, but with enhanced clarity on accrual-based income recognition and simplified reporting requirements. The core sections remain consistent, ensuring continuity for long-term investors.

What Does This Mean for You?

For Individual Investors:

If you invested in T-Bills during this August 2026 auction:

• Your income is fully taxable at your applicable slab rate (10%, 20%, 30%, or 37% for AY 2026-27).
• If you're a senior citizen (60+ years), you may claim higher standard deduction under Section 48A of the IT Act 2025, which indirectly benefits your interest income.
• If your total income exceeds ₹2.5 lakh (or ₹3 lakh for senior citizens), you must file an Income Tax Return (ITR) for AY 2026-27, declaring T-Bill income separately.
• You cannot claim any deduction under Section 80C (no tax-saving benefit from T-Bills), but this is offset by lower risk and guaranteed returns.

For NRI Investors:

Non-Resident Indians investing in T-Bills must note:

• Interest income is subject to 20% tax under Section 115(2) of the IT Act 2025 (DTAA rates may apply if applicable).
• No tax benefit under Section 80 deductions—income is taxed as received.
• TDS at 20% is applicable; you can claim credit in your home country under DTAA provisions.

For Corporate Investors & HUFs:

• T-Bill income is added to gross total income at the applicable corporate rate (25% + surcharge + cess for corporates under AY 2026-27).
• For HUFs, the same slabs apply as individuals, with separate ITR filing required if income threshold is crossed.
• Corporates can carry forward losses (if any) from T-Bill investments against other income, though unlikely given guaranteed returns.

Record-Keeping Requirements:

Under the IT Act 2025, maintain documentation of:

• Auction confirmation slips and allotment letters from RBI/banks.
• Cost of acquisition (purchase price).
• Maturity/redemption advice with face value and interest realized.
• Bank statements showing deposits and withdrawals.
• TDS certificates (if applicable).

What Should You Do Now?

Immediate Action Items:

1. Reconcile Your Holdings: Cross-check your Demat account or bank records with RBI's auction results. Verify the quantity allotted, price paid, and maturity date.

2. Calculate Taxable Income: For 91-day T-Bills purchased in August 2026, they mature in November 2026 (within the same financial year FY 2026-27). Calculate the discount as: Face Value (₹100) minus Purchase Price (e.g., ₹98.71) = taxable interest.

3. Plan for ITR Filing: If your total income (including T-Bill interest) exceeds the basic exemption limit, prepare an ITR-1 (Sahaj) or ITR-2 (standard) for AY 2026-27. You must file by July 31, 2027 to avoid penalties under Section 234F of the IT Act 2025.

4. Claim TDS Credit: If your bank deducted TDS on redemption, obtain Form 16A and claim credit in your ITR. This prevents double taxation.

5. Evaluate Tax-Loss Harvesting: Although T-Bills are low-risk, if you have capital losses from equity investments, consider holding T-Bills longer to offset losses (where applicable).

6. Review Investment Strategy: With yields at 5.25%-5.73% (YTM), compare returns with fixed deposits, bonds, and mutual funds. Post-tax returns depend on your slab rate.

Key Takeaways

• T-Bill income is taxable: The discount earned is treated as interest income under Section 56(1)(iii) of the IT Act 2025 and taxed at your applicable slab rate—not a tax-free investment.
• Timing of taxation: Income is taxable when T-Bills mature or are sold, not on purchase date. For short-duration T-Bills (91-day), ensure you report income in the correct financial year.
• TDS provisions apply: While RBI doesn't deduct TDS on T-Bill issuance, banks paying redemption proceeds may deduct TDS under Section 193 if applicable—claim credit in ITR.
• Mandatory ITR filing: If your total income (including T-Bill interest) exceeds ₹2.5 lakh, file ITR-1 or ITR-2 for AY 2026-27 by July 31, 2027 to avoid ₹10,000 penalty.
• NRI tax rate: Non-residents face a flat 20% tax on T-Bill interest under Section 115(2) of the IT Act 2025; DTAA benefits may reduce this in specific cases.

Final Note: Treasury Bills remain one of the safest investments with government backing, but they are NOT tax-exempt. Unlike Section 80C instruments, T-Bills offer no deduction benefits. However, their guaranteed returns and capital safety make them ideal for risk-averse investors willing to pay applicable taxes.

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