Investor Presentation - Financial results for the quarter and half year ended September 30, 2026.

IDFCFIRSTBANK/SD/161/2026-2027 October 24, 2026 National Stock Exchange of India Limited BSE Limited Mumbai 400 051 Mumbai 400 001 NSE - Symbol: IDFCFIRSTB BSE - Scrip Code: 539437 Sub.: Investor Presentation – Unaudited Standalone and Consolidated Financial Results (“Financial Results”) of IDFC FIRST Bank Limited (“Bank”) for the quarter and half year ended September 30, 2026. Dear Sir / Madam, Please find enclosed herewith the Investor Presentation in connection with the Financial Results of the Bank for the quarter and half year ended September 30, 2026 (Q2-FY27). The above information is also being hosted on the Bank’s website at www.idfcfirst.bank.in, in terms of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended. Please take the above on record. Thanking You, Yours Faithfully, For IDFC FIRST Bank Limited Satish Gaikwad General Counsel and Company Secretary Encl.: As above IDFC FIRST Bank Limited Corporate Office: IDFC FIRST Bank Tower, (The Square), C-61, G Block, Bandra-Kurla Complex, Bandra (East), Mumbai - 400 051. Tel: +91 22 7132 5500 Registered Office: KRM Towers, 7th Floor, No.1, Harrington Road, Chetpet, Chennai - 600 031, Tamil Nadu. Tel: +91 44 4571 6477 CIN: L65110TN2014PLC097792 | E-mail: bank.info@idfcfirstbank.com | Website: www.idfcfirst.bank.in Investor Presentation – Q2 FY27 October 24, 2026 Our Vision To Build A World Class Bank in India with Principles of Ethical, Digital & Social Good Banking Bank at Glance, Q2 FY27 results Sep-26 Loans & Advances Total Deposits CASA Deposits Average CASA ratio Rs. 3,38,929 Cr Rs. 3,48,583 Cr Rs. 1,65,963 Cr 48.4% (14% QoQ | 30% YoY) (12% QoQ | 26% YoY) (5% QoQ | 20% YoY) (-167 bps QoQ | -22 bps YoY) Net Interest Income Fee & Other Income GNPA ratio NNPA ratio (Q2-FY27) (Q2-FY27) 1.32% 0.40% Rs. 6,184 Cr Rs. 2,285 Cr (-20 bps QoQ | -54 bps YoY) (-4 bps QoQ | -13 bps YoY) (3.5% QoQ | 21.0% YoY) (7.4% QoQ | 24.5% YoY) Excluding Interest on IT-refund in Q1FY27, up 4.5% QoQ Core Operating Profit Provisions Profit After Tax Return on Assets (Q2-FY27) (Q2-FY27) (Q2-FY27) (Q2-FY27) Rs. 2,527 Cr Rs. 1,137 Cr Rs. 1,045 Cr 0.93% (6.6% QoQ | 38.5% YoY) (-0.6% QoQ | -21.7% YoY) (-2.8% QoQ | 196.5% YoY) (-13 bps QoQ | 55 bps YoY) Core RoA at 0.92% in Q2 vs 0.88% in Q1 FY27 1. Loans & Advances (Rs. 3,38,929 Cr) and Credit Substitutes (Rs. 7,984 Cr) = Total Loan Assets of Rs. 3,46,913 Cr, up 30% YoY and 14% QoQ 2. Loan Assets includes FCNR (B) backed loans to NRI customers amounting to Rs. 24,885 crore, excluding this it grew 5.5% QoQ and 20.8% YoY. Gross of IBPC Loan Assets increased by 22.2% YoY 3. Total Deposits includes Customer Deposits (Rs. 3,41,415 Cr) and Certificate of Deposits (Rs. 7,168 Cr). This includes FCNR (B) deposits of Rs. 34,390 crore 4. Domestic credit to deposit ratio was at 89.9% as on September 30, 2026, this excludes the loans and deposits of IBU branch of the Bank Management Commentary – Q2 FY27 Sep-26 • Strong deposit growth: Total deposits grew 25.9% YoY and 11.8% QoQ to reach Rs. 3,48,583 crore. • Healthy CASA: Average CASA ratio remained strong at 48.4% in Q2 FY27. The slight decline from 50.1% was primarily due to the large mobilisation of FCNR(B) deposits during the quarter. • Loan growth: Loans and advances, including credit substitutes and FCNR(B)-backed loans, grew 30.1% YoY to Rs. 3,46,913 crore. Excluding loans secured by FCNR(B) deposits, loan growth was 22.2%, gross of IBPC. • Operating leverage: Opex growth has remained lower than income growth by over 500 bps YoY for two consecutive quarters. Over the past seven years, the Bank has invested in building its deposit, PSL franchise, and launch of many new business lines. Bank is experiencing Operating leverage on these investments which is resulting in strong growth in PAT. • Improving cost-to-income ratio: Incremental cost-to-income ratio was 55% in H1 FY27. The core cost-to-income ratio improved to 70.16% in Q2 FY27 from 70.73% in Q1 FY27. • Strong growth in core operating profit: Core operating profit, excluding trading gains, grew 38.5% YoY to Rs. 2,527 crore in Q2 FY27. • Stable asset quality: GNPA stood at 1.32% and Net NPA at 0.40%. Credit cost, as a percentage of average assets, reduced to 1.01% in Q2 FY27. • PAT grew 196.5% YoY to Rs. 1,045 crore, resulting in an ROA of 0.93% for Q2 FY27. H1 FY27 ROA stood at 0.99%. • FCNR(B) mobilisation: The Bank mobilised Rs. 34,390 crore (approximately US$3.6 billion) of FCNR(B) deposits despite having no branch, subsidiary or representative office outside India. This demonstrates the Bank's digital capabilities and the trust it enjoys among customers. • FCNR(B) deposits are largely of 3-to-5-year tenor and provide strong structural liquidity for the coming years. The fully loaded cost of FCNR(B), including PSL benefits, is approximately 1% lower than the cost of raising domestic fixed deposits. • FCNR(B) deposits will benefit NII, PAT, EPS and RoE, although it is optically NIM-dilutive because the balance sheet expanded by Rs. 24,885 crore as loans were extended by the International Banking Unit against FCNR(B) deposits. • We expect the impact of the recent consultation paper by IRDAI on commission of insurance paper on the overall profitability for FY28 to be broadly addressed by the positive impacts of the FNCR(B) deposit mobilization at ~1% benefit (including statutory benefits) compared to domestic rates, savings in raising these deposits domestically, product changes, and expected increase in the repo rate (assumed additional 25 bps in FY27 and 25 bps in FY28). Our Incremental Core RoA (excluding trading gains) is at 1.84% Sep-26 RoA Tree on Incremental C:I RoA Tree H1 FY27 Actuals for H1 FY27 Interest Income 10.7% 10.7% (A) Incremental Cost to Income ratio at 55.0% Interest Expense 5.0% 5.0% (A) NII 5.7% 5.7% (A) In Rs. Crore H1 FY26 H1 FY27 Incremental Fee & Other Income 2.1% 2.1% (A) Operating Expenses 10,044 11,671 1,627 Total Income 7.8% 7.8% (A) Core Operating Income 13,613 16,570 2,957 C:I (%) 73.8% 70.4% 55.0% Cost to Income Ratio 70.4% 55.0% (A) Opex 5.4% 4.3% (D) PPOP 2.3% 3.5% (D) ROA AT INCREMENTAL C:I of 55% 1.84% Provisions 1.1% 1.1% (A) PBT 1.3% 2.4% (D) vs 0.99% RoA in H1 FY27 ROA 0.99% 1.84% (D) Note: H1 FY27 RoA of 0.99% includes ~30bps drag from the liabilities business. (A)Actuals (D) Derived Core Profit After Tax crosses Rs. 1,000 crore Sep-26 Core Profit after Tax has grown by 233.5% YoY and by 15.5% QoQ In Rs crore 1,036 Q2 FY26 Q3 FY26 Q4 FY26 Q1 FY27 Q2 FY27 Core RoA 0.34% 0.45% 0.77% 0.88% 0.92% Reported RoA 0.38% 0.52% 0.33% 1.06% 0.93% Core PAT excludes Trading gain from all periods, Impact of Fraud incident and IT Refund in Q4 FY26 and Interest on IT Refund in Q1 FY27 Product Strategy Product Strategy 7 Liabilities TABLE Liabilities Assets Assets 24 CONTENTS 3 Asset Quality Asset Quality 32 Profitability Capital Profitability & Capital 41 The Bank has built a full Suite of Universal Banking Products and scaled them up Sep-26 Retail Corporate Lending Lending Treasury & Rural Forex Lending Solutions V E Transaction N S SME Banking & Lending WHOLESALE BANKING RETAIL BANKING PRODUCTS PRODUCTS Trade Finance Deposits Solutions Fastag NRI Banking Wealth Credit Cards Management IDFC FIRST Bank has developed capabilities to finance all customer segments Sep-26 Book Composition of Retail Finance Corporate IDFC FIRST Bank in these segments LAP Rural Finance Home Loan BBG MSME Finance Traditional Banks are 79% Gold Loan Tractor Loan primarily focus on Corporate Finance this segment Education Loan Salaried Personal Loan Credit Card Kisan Credit Card CV / CE Used Car Loan Affordable Housing Loan against Deposits LAS IDFC FIRST Bank has developed unique 21% Two Wheeler Loans Consumer Durable Loans Micro Entrepreneur Rural Entrepreneurs capabilities for 15 years to underwrite the segment profitably with stable Kirana Social Enterprises Self Employed Dairy asset quality usin [Showing first 8,000 characters — download PDF for full document]