RBI Amends Investment Portfolio Rules for Commercial Banks
Current · Source: Reserve Bank of India · RBI/2026-27/34 · issued 27 Apr 2026 · ~2 min read
Quick answerRBI has amended the Classification, Valuation, and Operation of Investment Portfolio Directions, 2025, inserting new definitions (amortised cost, EIR, ECL, gross carrying amount, loss allowance, stages, transaction cost) and modifying existing ones (carrying cost, financial asset) to align with the new Asset Classification, Provisioning and Income Recognition Directions, 2026.
The rule, in the simplest words
Banks must use the 'amortised cost' method (a way to value an investment by spreading its cost over time) for many investments, following the new 2026 rules.
The 'effective interest rate' (EIR) (the true interest rate earned on an investment over its life) must be used to calculate how much an investment is worth.
Banks must set aside money for 'expected credit loss' (ECL) (the predicted loss if a borrower doesn't pay back) on their investment portfolio, just like for loans.
For zero-coupon instruments (investments like T-bills that pay no interest but are bought at a discount), the 'carrying cost' (how they are valued) must now use the EIR method or the purchase rate.
All these changes make the rules for investments match the new rules for loans and other assets, so everything is consistent.
How it plays out — a real example
Priya, a treasury officer in Indore, is reviewing her bank's investment in a zero-coupon bond. She now knows she must calculate its carrying cost using the effective interest rate method, not the old simpler way, to match the new 2026 rules. This helps her ensure the bank's investment portfolio is valued correctly and consistently with loan provisioning.
What changed
RBI inserted seven new definitions (1A, 11A, 12A, 17A, 23A, 37A, 42A) into paragraph 4 of the Directions, covering amortised cost, effective interest rate, expected credit loss, gross carrying amount, loss allowance, Stage 1/2/3, and transaction cost. It also modified the definitions of 'carrying cost' (4(4)) for zero-coupon instruments and 'financial asset' (4(14)). These changes align the investment portfolio framework with the new Asset Classification, Provisioning and Income Recognition Directions, 2026.
What it means for you
Banks must now compute amortised cost, EIR, ECL, and loss allowance for investment portfolios as per the new Asset Classification, Provisioning and Income Recognition Directions, 2026, ensuring consistency across asset classification and provisioning. The revised carrying cost definition for zero-coupon instruments mandates using the EIR method or acquisition rate, impacting valuation of T-bills, CPs, CDs, and zero-coupon bonds. This harmonisation reduces ambiguity and aligns investment portfolio treatment with broader prudential norms.
What you must do
Update internal policies and systems to incorporate the seven new definitions (amortised cost, EIR, ECL, gross carrying amount, loss allowance, stages, transaction cost) as per the 2026 Directions.
Revise computation of carrying cost for zero-coupon instruments to use the effective interest rate method or acquisition rate as applicable.
Train treasury and risk teams on the revised definition of financial asset and its implications for classification and valuation.
Ensure alignment of investment portfolio reporting with the new Asset Classification and Provisioning Directions, 2026.
Who it affects
All commercial banks in India, Treasury departments, Risk management teams, Compliance and regulatory reporting units
❓ Common questions
What is the effective date of these amendments?
The amendment directions were issued on April 27, 2026. The source does not explicitly state the effective date, but the directions modify the existing Directions of 2025 from that date.
Do these changes impact how we calculate ECL for investment securities?
Yes, the new definition of ECL and loss allowance explicitly reference computation as per the Asset Classification, Provisioning and Income Recognition Directions, 2026, so banks must apply the same ECL methodology to investment portfolios.
How does the revised carrying cost definition affect zero-coupon instruments?
Carrying cost for zero-coupon instruments like T-bills and CDs must now be adjusted for discount accrued using the effective interest rate method or the rate at acquisition, ensuring consistent valuation.
📜 Read the original circular — full text as issued by RBI
RBI/2026-27/34
DOR.STR.REC.9/00-00-001/2026-27
April 27, 2026
Reserve Bank of India (Commercial Banks – Classification, Valuation, and Operation of Investment Portfolio)- Amendment Directions, 2026
Please refer to Reserve Bank of India (Commercial Banks – Classification, Valuation, and Operation of Investment Portfolio) Directions, 2025 (hereinafter referred to as ‘the Directions’).
2. Consequent to the issuance of Reserve Bank of India (Commercial Banks - Asset Classification, Provisioning and Income Recognition) Directions, 2026 and in exercise of the powers conferred by the section 35A of the Banking Regulation Act, 1949 and all other laws enabling the Reserve Bank in this regard, the Reserve Bank being satisfied that it is necessary and expedient in the public interest so to do, hereby issues the Amendment Directions hereinafter specified.
3. The Amendment Directions modify the Directions as under:
(1) Paragraph 4 shall be modified to insert definitions (1A), (11A), (12A), (17A), (23A), (37A), (42A) as specified below:
i. (1A) ‘Amortised cost’ of a financial instrument means the amount at which the financial instrument is measured at a reporting date subsequent to initial recognition, after taking into account principal repayments and the cumulative amortisation, using the Effective Interest Rate method, of any difference between the amount at initial recognition and the maturity amount, adjusted for any loss allowance.
ii. (11A) ‘Effective interest rate (EIR)’ is the rate that exactly discounts estimated future cash payments or receipts flows through the expected life of the instrument to the gross carrying amount of a financial asset. It shall be computed as per the provisions of the Reserve Bank of India (Commercial Banks - Asset Classification, Provisioning and Income Recognition) Directions, 2026 .
iii. (12A) ‘Expected credit loss (ECL)’ means the weighted average of credit losses under different scenarios with the respective probabilities of the various scenarios as the weights. It shall be computed as per the provisions of the Reserve Bank of India (Commercial Banks - Asset Classification, Provisioning and Income Recognition) Directions, 2026 .
iv. (17A) ‘Gross carrying amount of a financial asset’ is the amortised cost of a financial asset, before adjusting for any loss allowance. It shall be computed as per the provisions of the Reserve Bank of India (Commercial Banks - Asset Classification, Provisioning and Income Recognition) Directions, 2026 , unless otherwise specified.
v. (23A) ‘Loss allowance’ means an accounting provision for ECL on financial instruments and shall be computed as per the provisions of the Reserve Bank of India (Commercial Banks - Asset Classification, Provisioning and Income Recognition) Directions, 2026 , unless specified otherwise.
vi. (37A) ‘Stage 1 / 2/ 3’ shall have the same meaning as defined in the Reserve Bank of India (Commercial Banks - Asset Classification, Provisioning and Income Recognition) Directions, 2026 . It shall be computed as per the provisions of the aforesaid Directions.
vii. (42A) ‘Transaction cost’ shall have the same meaning as defined in the Reserve Bank of India (Commercial Banks - Asset Classification, Provisioning and Income Recognition) Directions, 2026 .
(2) The definition 4(4) shall be modified as below:
4(4) ‘Carrying cost’ in the context of zero-coupon discounted instruments such as Treasury Bills, Commercial Papers, Certificate of Deposits, and Zero-Coupon Bonds is the acquisition cost adjusted for the discount accrued using the effective interest rate method / at the rate prevailing at the time of acquisition, as applicable.
(3) The definition 4(14) shall be modified as below:
4(14) ‘Financial asset’ means any asset that is:
(a) cash;
(b) an equity instrument of another entity; or
(c) contractual right to receive cash, or another financial asset from another entity, or to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity.
(4) Explanation to paragraph 35(2) shall be modified as below:
Explanation: ‘Principal’ for the purposes of determining eligibility under the SPPI criteria is fair value of security at initial recognition, and it may change over the life of the security based on repayment or amortisation using the EIR method.
(5) Paragraph 43 shall be modified as below:
43. A bank shall measure all investments at fair value on initial recognition. However, initial recognition for investments classified under HTM or AFS shall be at fair value plus or minus transaction costs that are directly attributable to the acquisition or origination of the financial asset unless otherwise specifically provided under these Directions.
Provided that, unless facts and circumstances suggest that the fair value is materially different from the acquisition cost, it shall be presumed that the acquisition cost is the fair value. The presumption of acquisition cost as fair value shall be tested under the following situations:
(1) The transaction is between related parties (excluding transactions on NDS-OM);
(2) The transaction is taking place under duress where one party is forced to accept the price in the transaction;
(3) The transaction is done outside the principal market for that class of securities; or,
(4) Other situations, where in the opinion of the supervisor, facts and circumstances warrant testing of the presumption.
(6) Paragraph 48 shall be modified as below:
48. A bank shall measure securities classified under HTM at amortised cost using the EIR method and such securities shall not be marked to market (MTM) after initial recognition.
Explanation:
i. EIR shall be computed as per the provisions of Reserve Bank of India (Commercial Banks - Asset Classification, Provisioning and Income Recognition) Directions, 2026 .
ii. However, the fair value of the securities outstanding as on March 31, 2027, shall be the new gross carrying amount, for the purpose of transition to the aforesaid Directions. Any difference between the previous carrying amount and the fair value (adjusted for the impact of applicable taxes, if any) shall be adjusted to the Revenue / General Reserve and shall not be routed through Profit and Loss account. The EIR on such investments shall be computed based on the fair value as on March 31, 2027, and the remaining estimated future cash flows, and shall be applied prospectively from April 1, 2027. The bank shall recognise loss allowance on such investments based on the credit risk stage (Stage 1 / 2 / 3) as determined under the Reserve Bank of India (Commercial Banks-Asset Classification, Provisioning and Income Recognition) Directions, 2026 .
These securities shall be subject to income recognition, asset classification, and provisioning norms as specified in paragraphs 95 to 104 of these Directions.
(7) Paragraph 49 shall stand deleted.
(8) Paragraph 50 shall be modified as below:
50. A bank shall fair value securities classified under AFS at least on a quarterly basis, if not more frequently. The discount or premium on the acquisition of debt securities under AFS shall be amortised using the EIR method.
(9) Paragraph 51 shall be modified as below:
51. A bank shall aggregate the valuation gains and losses across all Stage 1 and Stage 2 investments held under AFS, irrespective of classification (e.g., Government Securities, Other approved securities, Bonds, and Debentures). The net appreciation or depreciation (adjusted for the effect of applicable taxes, if any) shall be directly credited or debited to a reserve named AFS-Reserve without routing through the Profit & Loss Account.
(10) Paragraph 57 shall stand deleted.
(11) Paragraph 61(1) shall be modified as below:
(1) Where the investment is held under HTM, the amortised cost shall be the revised carrying value.
(12) Paragraph 62(1) shall be modified as below:
(1) Where the investment is reclassified into HTM, the fair value on the date of such reclassification is the new gross carrying amount. The difference between the fair value and previous carrying value shall be transferred to Profit and Loss Account. The EIR applicable to investments reclassified to HTM shall be computed on the date of reclassification based on the gross carrying amount on that date and the remaining estimated future cash flows. The bank shall recognise the loss allowance based on the credit risk stage (Stage 1 / 2 / 3) of the investment as determined on the date of reclassification.
(13) Paragraph 62(2) shall be modified as below:
(2) Where the investment is reclassified into AFS or FVTPL, the fair value on the date of such reclassification shall be the revised carrying value. The difference between the revised and previous carrying value shall be transferred to AFS-Reserve and Profit and Loss Account, in case of reclassification into AFS and FVTPL respectively. The EIR applicable to investments reclassified as AFS debt securities shall be computed on the date of reclassification based on the fair value on that date and the remaining estimated future cash flows. The bank shall recognise the loss allowance on such investments based on the investment’s credit risk stage (Stage 1 / 2 / 3) as determined on the date of reclassification.
(14) FAQ 23 shall stand deleted.
(15) The table under Paragraph 68 shall be modified as below:
Sl. No.
Reproduced for reference with acknowledgment — Source: Reserve Bank of India · RBI/2026-27/34 · issued 27 Apr 2026. The plain-English explanation above is BankPulse’s own independent summary.
Ensure alignment of investment portfolio reporting with the new Asset Classification and Provisioning Directions, 2026.
💻 IT / Systems
Update internal policies and systems to incorporate the seven new definitions (amortised cost, EIR, ECL, gross carrying amount, loss allowance, stages, transaction cost) as per the 2026 Directions.
📜 Compliance
Revise computation of carrying cost for zero-coupon instruments to use the effective interest rate method or acquisition rate as applicable.
Train treasury and risk teams on the revised definition of financial asset and its implications for classification and valuation.
Grouped from the action items above — a single circular may involve more than one team.
Worked example & action-note template
Example: if you are an IT/Systems lead at a bank this circular applies to (All commercial banks in India, Treasury departments, Risk management teams, Compliance and regulatory reporting units), your first concrete step on “RBI Amends Investment Portfolio Rules for Commercial Banks” is: “Update internal policies and systems to incorporate the seven new definitions (amortised cost, EIR, ECL, gross carrying amount, loss allowance, stages, transaction cost) as per the 2026 Directions.” (RBI issued this 27 Apr 2026).
Action required: Update internal policies and systems to incorporate the seven new definitions (amortised cost, EIR, ECL, gross carrying amount, loss allowance, stages, transaction cost) as per the 2026 Directions.
Action required: Revise computation of carrying cost for zero-coupon instruments to use the effective interest rate method or acquisition rate as applicable.
Action required: Train treasury and risk teams on the revised definition of financial asset and its implications for classification and valuation.
Action required: Ensure alignment of investment portfolio reporting with the new Asset Classification and Provisioning Directions, 2026.
Owner: ____________ Target date: ____________
Board/committee approval needed? Y / N
Evidence filed in compliance register on: ____________
Built only from this circular’s own published fields — not legal advice; always confirm against the official RBI source.
💬 Banker Discussion
Discuss this circular with fellow bankers — reply, upvote what helps, report what doesn’t belong. Be professional; no client data. Views are the commenter’s own, not BankPulse’s.
BankPulse Compliance Evidence Pack — generated 02 Aug 2026 · status cross-checked against RBI’s official withdrawal register (refreshed weekly). Official RBI source: https://www.rbi.org.in/Scripts/NotificationUser.aspx?Id=13391&Mode=0 — Plain-English summary by BankPulse (bankpulse.ai), reviewed by our expert reviewer, CA Amit Jain. Independent platform, not affiliated with the Reserve Bank of India; is our own plain-English paraphrase, not RBI’s original wording.
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