Unaudited interim condensed consolidated statements As of for the twelve-month period ended September 30, 2024

Contents
Management report			2
Independent Auditor's Report			4
Unaudited interim condensed consolidated balance sheets			5
Unaudited interim condensed consolidated income statements			6
Unaudited interim condensed consolidated statements of comprehensive income			7
Unaudited interim condensed consolidated statements of cash flows			8
Unaudited interim condensed consolidated statements of changes in equity			9
Notes to the Unaudited interim condensed consolidated statements			10
	Note 1	Activity and structure of Inter & Co, Inc. and its subsidiaries	10
	Note 2	Basis for preparation	11
	Note 3	Material changes of accounting policies	12
	Note 4	Material accounting policies	14
	Note 5	Operational segments	17
	Note 6	Financial risk management	21
	Note 7	Fair values of financial instruments	29
	Note 8	Cash and cash equivalents	32
	Note 9	Amounts due from financial institutions, net of provisions for expected loss	32
	Note 10	Securities, net of provisions for expected loss	33
	Note 11	Derivative financial instruments	35
	Note 12	Loans and advances to customers, net of provisions for expected loss	37
	Note 13	Non-current assets held for sale	41
	Note 14	Equity accounted investees	41
	Note 15	Property and equipment	41
	Note 16	Intangible assets	43
	Note 17	Other assets	44
	Note 18	Liabilities with financial and similar institutions	44
	Note 19	Liabilities with customers	44
	Note 20	Securities issued	44
	Note 21	Borrowing and on-lending	45
	Note 22	Tax liabilities	45
	Note 23	Provisions and contingent liabilities	45
	Note 24	Other liabilities	47
	Note 25	Equity	47
	Note 26	Net interest income	49
	Note 27	Income from securities and derivatives	49
	Note 28	Net revenues from services and commissions	50
	Note 29	Other revenues	50
	Note 30	Impairment losses on financial assets	50
	Note 31	Administrative expenses	51
	Note 32	Personnel expenses	51
	Note 33	Tax expenses	51
	Note 34	Current and deferred income tax and social contribution	51
	Note 35	Share-based payment	53
	Note 36	Transactions with related parties	57
	Note 37	Subsequent events	58

1

Unaudited interim condensed consolidated statements As of for the twelve-month period ended September 30, 2024

Management report

Inter & Co, Inc.

Inter & Co, Inc (the Company and, together with its consolidated subsidiaries, the Group) is a holding company incorporated in the Cayman Islands, with limited liability. Inter&Co is the controlling company of the group Inter and indirectly holds all the shares in Banco Inter.

Inter

Inter provides e-commerce and financial services, with solutions are offered in a single digital ecosystem that includes a complete range of banking services, investments, credit, insurance, and cross-border banking, as well as a marketplace that brings together the largest retailers in Brazil and in the United States.

Operating highlights

Customers

As of September 30, 2024 we surpassed a total of 34.9 million customers. The activation rate reached 55.9%, an increase of 3.3 percentage points when compared to September 30, 2023.

Loan Portfolio

The balance of loan operations reached R$33.7 billion, representing a positive variation of 13.2% compared to December 31, 2023.

Economic and financial highlights

Profit (loss) for the period

As of September 30, 2024 we achieved an accumulated profit of R$677.9 million, representing a increase of 252.1% compared to the previous period ending on September 30, 2023.

Revenues

As of September 30, 2024, revenues reached R$4,555.7 million, marking an increase of R$1,116.0 million compared to the same period of 2023.

Administrative expenses

Accumulated administrative and personnel expenses incurred as of September 30, 2024, totaled R$(1,926.5) million, an increase of R$(260.8) million compared to year-to-date on September 30, 2023.

Equity highlights

Total assets

Total assets reached R$R$69.9 billion as of September 30, 2024, an increase of 15.9% compared to December 31, 2023.

Shareholder’s equity

Shareholder’s equity totaled R$8.9 billion, an increase of 16.7% compared to December 31, 2023.

Relationship with the independent auditors

The Company also has a policy with requirements for contractual risk analysis which defines that the Board of Directors must evaluate the transparency, objectivity, governance aspects and the compromising of the independence of the contract, thus ensuring conformity between the parties involved. Additionally, it has an Audit Committee which, among its responsibilities and competencies, in addition to providing opinions and recommendations on the audit service provider, also evaluates the effectiveness of the independent and internal audits, including with regard to the verification of compliance with legal provisions and regulations applicable to Inter, as well as internal policies and codes.

2

Unaudited interim condensed consolidated statements As of for the twelve-month period ended September 30, 2024

Furthermore, Inter&Co, Inc. confirms that KPMG Auditores Independentes Ltda. has procedures, policies, and controls in place to ensure its independence, which include an evaluation of the work provided, covering any service other than the independent audit of Company's financial information. This evaluation is based on the applicable regulations and accepted principles that preserve the auditor's independence. The acceptance and performance of non-audit professional services on the financial Information by its independent auditors during the period ended as of September 30, 2024 did not affect the independence and objectivity in the conduct of the audit work performed at Inter & Co, Inc. Information related to independent auditors' fees is made available annually in the reference form.

Acknowledgment

We would like to thank our shareholders, customers, and partners for their trust, as well as each of our employees who build our history each day.

Belo Horizonte, November 13, 2024.

The Management

3

KPMG Auditores Independentes Ltda
Rua Paraíba, 550 - 12º andar - Bairro Funcionários
30130-141 - Belo Horizonte/MG - Brasil
Caixa Postal 3310 - CEP 30130-970 - Belo Horizonte/MG - Brasil
Telefone +55 (31) 2128-5700
kpmg.com.br

Independent auditors' report on review of the condensed

consolidated interim financial information

To the Shareholders, Board of Directors and Directors of

Inter & Co, Inc.

Cayman Islands

Introduction

We have reviewed the condensed consolidated interim financial information of Inter & Co, Inc.("Company"), as of September 30, 2024, which comprise the balance sheet as of September 30, 2024,and the statements of profit or loss, comprehensive income for the quarter and nine-month period then ended, and changes in equity and cash flows for the nine-month period then ended, including the notes.

Management is responsible for the preparation and presentation of this condensed consolidated interim financial information in accordance with IAS 34 Interim Financial Reporting, issued by the International Accounting Standards Board – (IASB). Our responsibility is to express a conclusion on this condensed consolidated interim financial information based on our review.

Scope of review

We conducted our review in accordance with Brazilian and international review standards on interim financial information (NBC TR 2410 - Review of Interim Financial Information Performed by the Independent Auditor of the Entity and ISRE 2410 - Review of Interim Financial Information Performed by the Independent Auditor of the Entity, respectively). A review of interim financial information consists of making inquiries, primarily of people responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with standards on auditing and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

Conclusion on the condensed consolidated interim financial information

Based on our review, nothing has come to our attention that causes us to believe that the condensed consolidated interim financial information referred to above is not prepared, in all material respects, in accordance with IAS 34 - Interim Financial Reporting.

Belo Horizonte, November 13, 2024

KPMG Auditores Independentes Ltda.

CRC SP 014428/O-6 F-MG

Original report Portuguese signed by

Marco Antônio Pontieri

Accountant - CRC 1SP153569/O-0

KPMG Auditores Independentes Ltda., a Brazilian limited liability company and a member firm of KPMG's global organization of independent member firms licensed by KPMG International Limited, a private English company limited by guarantee. KPMG Auditores Independentes Ltda., a Brazilian limited liability company and a member firm of the KPMG global organization of independent member firms affiliated with KPMG International Limited, a private English company limited by guarantee.

4

Unaudited interim condensed consolidated balance sheetsAs of September 30, 2024 and December 31, 2023
(Amounts in thousands of Brazilian reais, unless otherwise stated)

	Note	09/30/2024	12/31/2023
Assets
Cash and cash equivalents	8	2,273,565	4,259,379
Amounts due from financial institutions, net of provisions for expected loss	9	5,225,482	3,718,506
Deposits at Central Bank of Brazil		4,185,156	2,664,415
Securities, net of provisions for expected loss	10	20,586,355	16,868,112
Derivative financial	11	18,489	4,238
Loans and advances to customers, net of provisions for expected loss	12	31,478,422	27,900,543
Non-current assets held for sale	13	184,823	174,355
Equity accounted investees	14.a	10,402	90,634
Property and equipment	15	360,063	167,547
Intangible assets	16	1,711,148	1,345,304
Deferred tax assets	34.c	1,411,485	1,033,535
Other assets	17	2,482,687	2,125,229
Total assets		69,928,077	60,351,797
Liabilities
Liabilities with financial and similar institutions	18	10,403,853	9,522,469
Liabilities with customers	19	39,129,759	32,651,620
Securities issued	20	9,047,656	8,095,042
Derivative financial	11	8,778	15,063
Borrowing and on-lending	21	114,824	107,412
Tax liabilities	22	457,853	363,262
Income tax and social contribution		360,717	287,978
Other tax liabilities		97,136	75,284
Provisions	23	54,375	70,452
Deferred tax liabilities	34.c	46,183	32,539
Other liabilities	24	1,797,457	1,897,248
Total liabilities		61,060,738	52,755,107
Equity
Share capital	25.a	13	13
Reserves	25.b.	9,508,076	8,147,285
Other comprehensive income	25.c	(800,226)	(675,488)
Treasury shares	25.h	(612)	—
Equity attributable to owners of the Company		8,707,251	7,471,810
Non-controlling interest	25.f	160,088	124,881
Total equity		8,867,339	7,596,691
Total liabilities and equity		69,928,077	60,351,797

The accompanying notes are an integral part of the Unaudited interim condensed consolidated statements

5

Unaudited interim condensed consolidated income statements For the quarters ended September 30, 2024 and 2023 (Amounts in thousands of Brazilian reais, except for earnings per share)

		Quarter		Nine-month period
	Note	09/30/2024	09/30/2023	09/30/2024	09/30/2023
Interest income	26	1,412,226	1,106,935	3,802,166	3,270,967
Interest expenses	26	(835,617)	(770,398)	(2,370,507)	(2,135,375)
Income from securities and derivatives	27	558,157	482,020	1,703,434	1,196,602
Net interest income and income from securities and derivatives		1,134,766	818,557	3,135,093	2,332,193
Net revenues from services and commissions	28	467,667	347,780	1,239,152	928,657
Expenses from services and commissions		(37,677)	(32,271)	(104,641)	(99,672)
Other revenues	29	111,387	131,430	286,072	278,465
Revenues		1,676,143	1,265,496	4,555,675	3,439,643
Impairment losses on financial assets	30	(471,427)	(407,899)	(1,303,723)	(1,157,140)
Administrative expenses	31	(474,826)	(362,877)	(1,272,897)	(1,096,360)
Personnel expenses	32	(258,955)	(210,661)	(653,625)	(569,322)
Tax expenses	33	(123,633)	(94,072)	(309,382)	(235,406)
Depreciation and amortization		(53,349)	(40,561)	(148,284)	(119,268)
Income from equity interests in associates	14.b	—	(4,071)	(2,480)	(30,597)
Profit before income tax		293,953	145,354	865,283	231,550
Income tax	34	(33,942)	(41,194)	(187,397)	(39,002)
Profit for the year		260,011	104,161	677,886	192,549
Profit attributable to:
Owners of the Company		242,671	91,291	631,943	151,442
Non-controlling interest		17,340	12,870	45,943	41,107
Earnings (loss) per share
Basic earnings (loss) per share	25.e	0.56	0.23	1.45	0.38
Diluted earnings (loss) per share	25.e	0.54	0.23	1.44	0.38

The accompanying notes are an integral part of the Unaudited interim condensed consolidated statements

6

Unaudited interim condensed consolidated statements of comprehensive incomeFor the quarters ended September 30, 2024 and 2023
(Amounts in thousands of Brazilian reais, unless otherwise stated)

	Quarter		Nine-month period
	09/30/2024	09/30/2023	09/30/2024	09/30/2023
Profit for the year	260,011	104,161	677,886	192,549
Other comprehensive income
Items that are or may be reclassified subsequently to the income statement:
Change in fair value - financial assets at FVOCI	(52,321)	(98,003)	(336,129)	177,437
Related tax - financial assets FVOCI	2,635	44,100	130,348	(79,848)
Net change in fair value - financial assets at FVOCI	(49,686)	(53,903)	(205,781)	97,589
Fair value change - investments in operations abroad	26,045	(7,909)	(36,987)	6,841
Tax effect	(14,321)	3,558	14,043	(124)
Hedge of net investments in operations abroad	11,724	(4,351)	(22,944)	6,717
Foreign exchange differences on the translation of foreign operations	(5,639)	11,039	103,987	(8,468)
Others	—	(3)	—	21
Other comprehensive income that may be reclassified subsequently to the income statement	(43,601)	(47,218)	(124,738)	95,859
Total comprehensive income for the period	216,410	56,943	553,148	288,408
Allocation of comprehensive income
To owners of the company	199,071	44,073	507,205	247,301
To non-controlling interest	17,340	12,870	45,943	41,107

The accompanying notes are an integral part of the Unaudited interim condensed consolidated statements

7

Unaudited interim condensed consolidated statements of cash flows For the quarters ended September 30, 2024 and 2023 (Amounts in thousands of Brazilian reais, unless otherwise stated)

	09/30/2024	09/30/2023
Operating activities
Profit (loss)	677,886	192,549
Adjustments to profit (loss)
Depreciation and amortization	148,284	119,268
Result of equity interests in associates	2,480	30,597
Impairment losses on financial assets	1,303,723	1,157,140
Expenses with provisions	37,264	27,104
Income tax and social contribution	187,397	39,002
Provisions/ (reversals) for loss of assets	(39,059)	(20,646)
Capital gains	(16,506)	(34,428)
Performance income	(55,298)	(104,840)
Revenue foreign exchange	(80,379)	(67,769)
(Increase)/ decrease in:
Compulsory deposits at Central Bank of Brazil	(1,520,741)	663,906
Loans and advances to customers	(4,146,035)	(5,073,844)
Amounts due from financial institutions	(1,509,509)	784,612
Securities	(144,912)	443,693
Derivative financial	(14,251)	(9,389)
Non-current assets held for sale	(10,469)	(2,404)
Other assets	(290,871)	(424,299)
Increase/ (decrease) in:
Liabilities with financial and similar institutions	50,250	1,511,348
Liabilities with customers	6,478,139	5,421,184
Securities issued	952,614	1,260,400
Derivative financial	(43,272)	(16,709)
Borrowing and on-lending	(296,316)	50,394
Tax liabilities	59,703	130,813
Provisions	(27,965)	(49,513)
Other liabilities	60,313	112,545
Income tax paid	(306,553)	(180,795)
Net cash from operating activities	1,455,917	5,959,919
Cash flow from investing activities
Capital increase in associate	—	11,564
Acquisition of subsidiaries, net of cash acquired	(81,675)	(14,426)
Acquisition of property and equipment	(57,801)	(12,974)
Acquisition of intangible assets	(302,897)	(194,228)
Acquisition of financial assets at FVOCI	(10,779,888)	(15,747,029)
Proceeds from sale of financial assets at FVOCI	6,986,440	12,801,310
Acquisition of financial assets at FVTPL	(67,399)	(590,236)
Proceeds from sale of financial assets at FVTPL	96,122	730,119
Net cash used in investing activities	(4,207,098)	(3,015,900)
Cash flow from financing activities
Capital increase	783,491	—
Dividends and interest on shareholders' equity paid	(78,500)	(19,704)
Repurchase of treasury shares	(18,954)	(16,409)
Resources from non-controlling interest, including capital increase	(1,049)	(10,245)
Net cash used in from financing activities	684,988	(46,358)
Increase/(Decrease) in cash and cash equivalents	(2,066,193)	2,897,661
Cash and cash equivalents at the beginning of the period	4,259,379	1,331,648
Effect of the exchange rate variation on cash and cash equivalents	80,379	67,769
Cash and cash equivalents at September 30	2,273,565	4,297,078

The accompanying notes are an integral part of the Unaudited interim condensed consolidated statements

8

Unaudited interim condensed consolidated statements of changes in equity For the quarters ended September 30, 2024 and 2023 (Amounts in thousands of Brazilian reais, unless otherwise stated)

	Share capital	Reserves	Other comprehensive income	Retained earnings	Treasury shares	Equity attributable to owners of the Company	Non-controlling interest	Total equity
Balance as of January 1, 2023	13	7,817,670	(825,301)	—	—	6,992,382	96,722	7,089,104
Profit for the period	—	—	—	151,442	—	151,442	41,107	192,549
Proposed allocations:
Constitution/ reversion of reserves	—	151,442	—	(151,442)	—	—	—	—
Interest on equity / dividends	—	—	—	—	—	—	(19,704)	(19,704)
Net change in fair value - financial assets at FVOCI	—	—	97,589	—	—	97,589	—	97,589
Exchange rate change adjustment	—	—	(8,468)	—	—	(8,468)	—	(8,468)
Gains and losses - Hedge	—	—	6,717	—	—	6,717	—	6,717
Repurchase of treasury shares	—	—	—	—	(16,409)	(16,409)	—	(16,409)
Share-based payment transactions	—	(7,992)	—	—	7,992	—	—	—
Reflex reserve	—	37,094	—	—	—	37,094	—	37,094
Others	—	—	21	—	—	21	(10,266)	(10,245)
Balance as of September 30, 2023	13	7,998,214	(729,442)	—	(8,417)	7,260,368	107,859	7,368,227
Balance as of January 1, 2024	13	8,147,285	(675,488)	—	—	7,471,810	124,881	7,596,691
Profit for the period	—	—	—	631,943	—	631,943	45,943	677,886
Proposed allocations:
Constitution/ reversion of reserves	—	631,943	—	(631,943)	—	—	—	—
Capital increase	—	822,259	—	—	—	822,259	—	822,259
Cost associated with issuing equity securities	—	(38,768)	—	—	—	(38,768)	—	(38,768)
Interest on equity / dividends	—	(68,813)	—	—	—	(68,813)	(9,687)	(78,500)
Foreign exchange differences on the translation of foreign operations	—	—	103,987	—	—	103,987	—	103,987
Gains and losses - Hedge	—	—	(22,944)	—	—	(22,944)	—	(22,944)
Net change in fair value - financial assets at FVOCI	—	—	(205,781)	—	—	(205,781)	—	(205,781)
Share-based payment transactions	—	(18,342)	—	—	18,342	—	—	—
Reflex reserve	—	32,512	—	—	—	32,512	—	32,512
Repurchase of treasury shares	—	—	—	—	(18,954)	(18,954)	—	(18,954)
Others	—	—	—	—	—	—	(1,049)	(1,049)
Balance as of September 30, 2024	13	9,508,076	(800,226)	—	(612)	8,707,251	160,088	8,867,339

The accompanying notes are an integral part of the Unaudited interim condensed consolidated statements

9

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

Notes to the Unaudited interim condensed consolidated financial statement

(Amounts in thousands of Brazilian reais, unless otherwise stated)

1.Activity and structure of Inter & Co, Inc. and its subsidiaries

Inter&Co, Inc. (“Inter&Co”, “Inter Group”, “Inter”, or “Company”), is the controlling holding company of the Inter Group, incorporated in the Cayman Islands as an exempted limited liability company on January 26, 2021, and registered with the U.S. Securities and Exchange Commission (“SEC”).

The history of the Inter Group began in 1994, under the name Intermedium Crédito, Financiamento e Investimento S.A. Our operations began in 1995, providing personal loans to individuals and working capital loans to small and medium-sized companies. From 1995 to 2007, we operated primarily in the State of Minas Gerais and expanded the scope of our products to include real estate loans. In 2008, we received authorization from the Central Bank of Brazil to operate as a Multiple Bank, which allowed us to carry out all banking activities in Brazil. Thus, we began operating as a full-service bank, offering financing, investments and real estate credit, under the name Banco Intermedium S.A.

In 2012, we launched our insurance brokerage activities, offering a wide range of insurance products to our clients. In 2013, we also created our investment brokerage firm, Inter DTVM, regulated by the Brazilian Securities and Exchange Commission (CVM). From 1994 to 2014, we evolved from a finance company to a licensed bank, from a regional presence to a national presence, and from pure credit to credit and services. In 2015, we launched our 100% Digital Checking Account, the most important milestone in our history, changing our mission to be a full-service digital bank. We enhanced our Digital Checking Account in 2016, offering credit and debit cards and Mastercard foreign exchange products. In 2017, we changed our brand to “Banco Inter” to reflect the evolution of our business, with a simpler, shorter and more modern name, indicating the path we wanted to follow in the coming years.

In 2018, another important milestone was reached: we were the first digital bank to carry out an initial public offering (IPO) in Brazil, on the B3 – Bolsa, Brasil, Balcão.

We implemented another major evolution of our strategy in 2019, when we started offering a marketplace for non-financial products, going beyond banking services with our new business vertical Inter Shop & Commerce Plus. Between 2019 and 2022, we had a significant growth in the number of customers (from 4 million in 2019 to more than 24 million in 2022) and a continuous increase in the range of products offered. Thus, we believe that Inter is much more than a bank, we are a Super App, which allows customers to manage their finances and daily activities, through a simple and integrated digital experience. In January 2022, we completed the acquisition of USEND (now Inter&Co Payments), a US-based financial technology company with operations in the United States, Brazil and Canada. Inter&Co Payments provides currency exchange services.

In June 2022, we completed the migration of Banco Inter’s shareholder base, which at the time consolidated the interests in the Group’s subsidiaries, on B3 in Brazil, to Inter&Co on Nasdaq. Since then, the Group’s publicly-held parent company has become Inter& Co, Inc., whose common shares are traded on Nasdaq under the symbol “INTR” and Brazilian Depositary Receipts (“BDRs”) are traded on B3 - Brasil, Bolsa, Balcão (“B3”), the Brazilian stock exchange, under the symbol “INBR32”.

10

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

On January 24, 2023, we completed another acquisition in the United States, of YellowFi Mortgage LLC (currently Inter US Finance), a company that owns, manages and operates a mortgage origination and lending business primarily in the State of Florida, and YellowFi Management LLC (Inter US Management), a company that manages and operates the Inter Mortgage Opportunity Fund, a residential mortgage investment fund. Our goal is to extend the capabilities we have developed in Brazil to new markets, starting in the US, offering solutions for Brazilians traveling abroad and for US residents.

In May 2023, we launched our seventh vertical, Loyalty. In 2024, we sold 36.8 million shares of our Class A common stock through a follow-on public offering, raising approximately US$162 million in gross proceeds. The offering initially closed in January 2024 and the exercise of the stock option closed in February 2024. One of the primary objectives of the offering was to increase liquidity for our Class A shares traded on Nasdaq.

In July 2024, we completed the acquisition of 50% of the share capital of Granito Instituição de Pagamento S.A. (currently Inter Pag Instituição de Pagamento S.A.), consolidating Inter as the sole shareholder of this company, in a strategy to take advantage of the growth of the small and medium-sized business market and, through the combination of proprietary technologies, offer more complete solutions for Inter and Granito customers.

2.Basis for preparation

a.Compliance statement

The Group's Unaudited interim condensed consolidated financial statements was prepared in accordance with IAS 34 - interim financial reports issued by the International Accounting Standards Board (IASB).

This Unaudited interim condensed consolidated financial statements was prepared following the preparation basis and accounting policies consistent with those adopted in the preparation of the consolidated financial statements of Inter&Co, Inc., as of December 31, 2023, and is therefore intended only to provide an update of the content of the latest financial statements and must be read together, in accordance with IAS 34.

The information in the explanatory notes that did not undergo significant changes or that did not present new disclosures in relation to December 31, 2023 was not fully repeated in this condensed consolidated interim financial statement. However, information has been included to explain the main events and transactions that have occurred, allowing an understanding of the changes in the financial position and performance of the Inter&Co operations since the publication of the consolidated financial statements as of December 31, 2023.

This Unaudited interim condensed consolidated financial statement was authorized for issuance by the Company's Board of Directors on November 13, 2024.

b.Functional and presentation currency

This Unaudited interim condensed consolidated financial statement is presented in Brazilian reais (BRL or R$). The functional currency of the Group companies is shown in note 4a. All balances were rounded to the nearest thousand, unless otherwise indicated.

11

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

c.Use of estimates and judgments

In preparing this Unaudited interim condensed consolidated financial statement, management has made judgments, estimates and assumptions that affect the application of the accounting policies of the Group and the reported amounts of assets, liabilities, revenues, and expenses. Actual results may differ from such estimates. Estimates and assumptions are reviewed on an ongoing basis. Adjustments, if any, related to changes in estimates are recognized prospectively. The significant judgments made by management during the application of the Inter&Co accounting policies and the sources of estimation uncertainty are described below:

Judgments

Information about the judgments made in the application of accounting policies that have the most relevant effects on the amounts recognized in financial projections are included in the following notes:

•Basis for consolidation (see note 4a): whether Inter&Co has de facto control over an investee;

•Equity accounted investees (see note 14): whether Inter&Co has significant influence over an investee.

Estimates

The estimates present a significant risk and may have a material impact on the values of assets and liabilities in the next year, and the actual results may differ from those previously established. They are disclosed below and are related to the following notes:

•Classification of financial assets (see notes 6 and 7) - evaluation of the business model in which the assets are held and evaluation if the contractual terms of the financial asset relate only to payments of principal and interest (SPPI test).

•Measuring the provision for expected credit losses on financial assets measured at amortized cost and fair value through other comprehensive income (FVOCI) requires the use of complex quantitative models and assumptions about future economic conditions and credit behavior. Several significant judgments are also necessary to apply accounting requirements to measure the expected credit loss, such as: determining the criteria for evaluating the significant increase in credit risk; select quantitative models and appropriate assumptions to measure expected credit loss; and establish different prospective scenarios and their weighting, among others.

•Business combination (see notes 4.b): determination of fair values of assets acquired and liabilities assumed in business combinations.

•Impairment test of intangible assets and goodwill (see notes 16): for the purposes of impairment testing, each invested entity was considered a cash generating unit (“CGU”).

•Deferred tax asset (note 34): the expected realization of the deferred tax asset is based on projected future taxable income and other technical studies.

3.Material changes of accounting policies

New or revised accounting pronouncements adopted in 2024

The following new or revised standards have been issued by IASB, and were effective for the year covered by these Unaudited interim condensed consolidated financial statements, and had no material impact on these condensed consolidated interim financial statements.

•Definition of accounting estimates - Amendments to IAS 8: defines accounting estimates as monetary values susceptible to uncertainties in their measurement. Among these estimates we can mention the expected credit loss and the fair value of assets and liabilities.

12

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

•Disclosure of Accounting Policies – Changes to IAS 1 and IFRS Practice Statement 2: The Inter&Co adopted disclosure from January 1, 2023. Although the amendments made to the accounting policies did not result in any changes to the accounting policies themselves, they did have an impact on the disclosure of accounting policy information in the consolidated financial statements. The amendments require 'material' disclosure of policies instead of 'significant' disclosure. Additionally, they provide guidance on the application of materiality to the disclosure of accounting policies, thus assisting entities in providing useful and specific policy information that users require to understand other information in the financial statements. Management made certain updates to the information presented in Note 4, which pertains to Material Accounting Policies (previously referred to as Significant Accounting Policies), in line with the amendments.

•Classification of Liabilities as Current or Non-Current – Amendments to IAS 1: Clarifies when to take into account contractual conditions (covenants) that may impact the unconditional right to defer settlement of the liability for a minimum period of 12 months after the end of the reporting period, in addition to establishing disclosure requirements for liabilities with covenants classified as non-current. These changes came into effect from the beginning of the 2024 financial year, and the changes did not have a significant impact on Inter&Co.

•Deferred tax on leasing transactions – Amendments to IAS 12: clarify that the exemption for accounting for deferred taxes arising from temporary differences generated in the initial recognition of assets or liabilities does not apply to leasing transactions.

•Changes to IFRS 16 – Leases: The IASB has issued narrow-scope amendments to the requirements for sale and leaseback transactions, explaining how an entity should account for a sale and leaseback after the transaction date. Sale and leaseback transactions in which some or all of the lease payments are variable lease payments that do not depend on an index or rate are most likely to be impacted.

•Insurance Contracts - IFRS 17: The standard on Insurance Contracts replaces IFRS 4 - Insurance Contracts, and brings important changes to the measurement, recognition and disclosure of these contracts, through specific methodologies for each type of agreement.

•Changes to IAS 7 and IFRS 7 - Supplier financing arrangements: These amendments require disclosures to increase transparency of supplier financing arrangements and their effects on a company’s liabilities, cash flows and liquidity risk exposure. The disclosure requirements are the IASB’s response to investor concerns that some companies’ supplier financing arrangements are not sufficiently visible, making them difficult for investors to analyze.

Other new standards and interpretations issued but not yet effective

•Amendment to IAS 21 - Effects of Changes in Exchange Rates and Translation of Financial Statements: The changes will require the application of a consistent approach when assessing whether one currency can be exchanged for another and the amendment clarifies how entities should determine the exchange rate to be used and the disclosures to be provided when a currency is difficult or cannot be exchanged. The amendments aim to improve the information that an entity provides in its financial statements. The amendments to IAS 21 are effective from January 1, 2025, and their adoption may be brought forward. Management does not expect any impacts on the financial statements of the Inter Group.

•New IFRS 18 - Presentation and Disclosure in Financial Statements: issued in April 2024, it replaces IAS 1 and introduces additional requirements for financial statements in order to improve information to shareholders. It defines three categories for revenues and expenses: operating, investments and financing, in addition to including new subtotals. The standard also provides guidance on the disclosure of performance indicators defined by management and introduces specific requirements for companies in the banking and insurance sectors. IFRS 18 will come into effect on January 1, 2027, and Management is currently analyzing its impacts on Inter&Co's financial statements.

13

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

•IFRS 19 – Subsidiaries without Public Liability: Disclosures: issued in May 2024, the standard establishes that a subsidiary without public liability may provide reduced disclosures when applying the Accounting Standards in IFRS in its financial statements. The standard is optional for eligible subsidiaries and establishes the disclosure requirements for subsidiaries that choose to apply it. The potential impacts are being assessed and will be completed by the effective date of the standard.

•Amendments to IFRS 9 – Financial Instruments and IFRS 7 – Financial Instruments Disclosures: issued in May 2024, the amendments and clarifications relate to the write-off of financial liabilities through electronic systems, assessment of contractual characteristics of cash flow in the classification (SPPI Test), such as: financial assets linked to ESG and other financial instruments. In addition, additional disclosures were included regarding equity instruments designated at fair value through other comprehensive income and financial instruments linked to contingent events. The amendments are effective for fiscal years beginning on January 1, 2026. The potential impacts are being assessed and will be completed by the effective date of the standard.

4.Material accounting policies

The accounting policies described below were applied in all of the years presented in the Unaudited interim condensed consolidated financial statements.

a.Basis for consolidation

Companies under Inter&Co control are classified as controlled. The company is considered the controller of an entity when it is exposed to or has the right to variable returns arising from involvement with that entity, in addition to having the ability to use its power to influence the value of these returns.

The subsidiaries are consolidated in full as from the date the company gains control of their activities until the date on which control ceases to exist. With regard to the significant restrictions on the Group’s ability to access or use the assets and settle the Group's liabilities, only the regulatory restrictions, linked to the compulsory reserves maintained in compliance with the requirement of the Central Bank of Brazil, which restrict the ability of subsidiaries of Inter&Co to transfer cash to other entities within the economic group. There are no other legal or contractual restrictions and no guarantees or other requirements that may restrict that dividends and other capital distributions are paid or that loans and advances are made or paid to (or by) other entities within the economic group.

The following table shows the subsidiaries in each year:

Entity	Branch of Activity	Common shares and/or quotas	Functional currency	Country	Share in the capital (%)
					09/30/2024		12/31/2023
Direct subsidiaries
Inter&Co Participações Ltda.	Holding Company	2,348,517,995	BRL	Brazil	100.00	%	100.00	%
INTRGLOBALEU Serviços Administrativos, LDA	Holding Company	1	EUR	Portugal	100.00	%	100.00	%
Inter US Holding, Inc	Holding Company	100	US$	USA	100.00	%	100.00	%
Inter Holding Financeira S.A.	Holding Company	401,207,704	BRL	Brazil	100.00	%	100.00	%

14

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

Indirect subsidiaries
Banco Inter S.A.	Multiple Bank	2,593,598,009	BRL	Brazil	100.00	%	100.00	%
Inter Distribuidora de Títulos e Valores Mobiliários Ltda.	Securities	335,000,000	BRL	Brazil	100.00	%	100.00	%
Inter Digital Corretora e Consultoria de Seguros Ltda.	Insurance broker	59,750	BRL	Brazil	60.00	%	60.00	%
Inter Marketplace Intermediacão de negócios e Serviços Ltda. (a)	Marketplace	1,984,271,386	BRL	Brazil	100.00	%	100.00	%
Inter Titulos Imobiliarios Fundo de Investimento Imobiliario	Investment Fund	485,935,000	BRL	Brazil	97.19	%	98.30	%
BMA Inter Fundo De Investimento Em Direitos Creditórios Multissetorial	Investment Fund	116,938,000	BRL	Brazil	71.60	%	86.46	%
TBI Fundo De Investimento Renda Fixa Credito Privado	Investment Fund	230,278,086	BRL	Brazil	100.00	%	100.00	%
TBI Fundo De Investimento Crédito Privado Investimento Exterior	Investment Fund	15,000,000	BRL	Brazil	100.00	%	100.00	%
IG Fundo de Investimento Renda Fixa Crédito Privado	Investment Fund	144,796,772	BRL	Brazil	100.00	%	100.00	%
Inter Simples Fundo de Investimento em Direitos Creditórios Multissetorial	Investment Fund	35,165	BRL	Brazil	91.70	%	99.11	%
IM Designs Desenvolvimento de Software S.A	Provision of services	50,000,000	BRL	Brazil	50.00	%	50.00	%
Acerto Cobrança e Informações Cadastrais S.A.	Provision of services	60,000,000,000	BRL	Brazil	60.00	%	60.00	%
Inter & Co Payments, Inc	Provision of services	1,000	US$	USA	100.00	%	100.00	%
Inter Asset Gestão de Recursos Ltda	Asset management	750,814	BRL	Brazil	70.87	%	70.87	%
Inter Café Ltda.	Provision of services	3,010,000	BRL	Brazil	100.00	%	100.00	%
Inter Boutiques Ltda.	Provision of services	6,010,008	BRL	Brazil	100.00	%	100.00	%
Inter Food Ltda.	Provision of services	7,000,000	BRL	Brazil	70.00	%	70.00	%
Inter Viagens e Entretenimento Ltda.	Provision of services	94,515,000	BRL	Brazil	100.00	%	100.00	%
Inter Conectividade Ltda.	Provision of services	33,533,805	BRL	Brazil	100.00	%	100.00	%
Inter US Management, LLC	Provision of services	100,000	US$	USA	100.00	%	100.00	%
Inter US Finance, LLC	Provision of services	100,000	US$	USA	100.00	%	100.00	%
Inter&Co Securities, LLC (b)	Securities	—	US$	USA	100.00	%	100.00	%
Inter&Co Tecnologia e Serviços Financeiros Ltda. (c)	Provision of services	9,896,122,671	BRL	Brazil	100.00	%	—	%
Landbank Fundo de Investimento em Direitos Creditórios de Responsabilidade Limitada (d)	Investment Fund	492,297,014	BRL	Brazil	100.00	%	—	%
Inter Pag Instituição de Pagamento S.A (e)	Provision of services	28,566,126	BRL	Brasil	100.00	%	50.00	%

a.On March 27, 2024, the corporate reorganization of Inter Marketplace Intermediação De Negócios e Serviços Ltda. Banco Inter, which was the sole partner of Inter Marketplace Intermediação de Negócios e Serviços Ltda, transferred its shares to Inter&Co Participações Ltda, becoming the direct controller of Inter Marketplace, consequently, an indirect subsidiary of Inter&Co.

b.The reorganization of Inter&Co Securities, LLC ("Securities") was completed on February 22, 2024. Inter&Co, Inc. ("Inter&Co"), which was the sole owner of Securities, transferred Securities' shares to its direct subsidiary, Inter US Holding, Inc. ("US Holding"). With the completion of this reorganization, Securities is now a direct subsidiary of US Holding and, consequently, an indirect subsidiary of Inter&Co.

c.On April 19, 2024, there was a change in the control structure of Inter&Co Tecnologia e Serviços Financeiros Ltda., which became directly controlled by Banco Inter. Previously, Inter&Co Tecnologia e Serviços Financeiros Ltda. was controlled by Inter&Co Payments, Inc.

d.On June 28, 2024, Inter&Co made a significant investment by acquiring a significant number of shares in the Landbank fund. As a result of this acquisition, the financial data relating to these funds began to be included in the consolidation basis of Inter&Co's financial statements.

e.On May 28, 2024, Banco Inter (indirect subsidiary) announced the execution of contracts for the acquisition of the entire share capital of Inter Pag, after approval by BACEN (Central Bank of Brazil) which occurred on July 24, 2024, Inter became the sole shareholder of Inter Pag.

Minority shareholders' interests

The Inter&Co recognizes the portion of equity relating to non-controlling interests in the consolidated balance sheet. In transactions involving the purchase of interests from non-controlling interests, the difference between the amount paid and the interest acquired is recorded in equity. Gains or losses on disposals to non-controlling interests are also recorded in equity. The company holds 50% or more of the voting capital of all indirect subsidiaries.

Balances and transactions eliminated on consolidation

Intra-group balances and transactions, including any unrealized gains or losses arising from intra-group transactions, are eliminated in the consolidation process. Unrealized losses are eliminated only to the extent that there is no evidence of impairment.

b. Business combination

Business combinations are recorded using the acquisition method when the set of assets acquired meets the definition of a business and control is transferred to the Group. In determining whether a set of activities and assets is a business, Inter assesses whether the acquired set includes at least one input and one substantive process that together contribute significantly to the ability to generate future results.

15

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

Inter has the option of applying a “concentration test” that allows it to assess in a simplified manner whether a set of activities and assets acquired is not a business. The optional concentration test is met if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group of similar identifiable assets.

The consideration transferred is generally measured at fair value, as are the identifiable net assets acquired. Any goodwill resulting from the transaction is tested annually for impairment. Gains on a bargain purchase are recognized immediately in profit or loss. Transaction costs are recorded in profit or loss as incurred, except for costs related to the issuance of debt or equity instruments. The consideration transferred does not include amounts relating to payments for pre-existing relationships. These amounts are generally recognised in the statement of income.

Any contingent consideration payable is measured at its fair value at the acquisition date. If the contingent consideration is classified as an equity instrument, it is not remeasured and the settlement is recorded in equity. The remaining contingent consideration is remeasured at fair value at each reporting date and subsequent changes in fair value are recorded in the statement of income.

Inter Pag Institução de Pagamento S.A (earlier named Granito Soluções em Pagamentos S.A.)

On May 28, 2024, Banco Inter, an indirect subsidiary, announced the execution of contracts to acquire the entire share capital of Inter Pag. Following approval by the Central Bank of Brazil (BACEN) on July 24, 2024, Banco Inter became the sole shareholder of Inter Pag, holding 100% of the share capital.

Inter Pag is a Brazilian card payment services company that aims to integrate its complete technology into Banco Inter's ecosystem, strengthening its offer of smart payment solutions to the market. With a vision focused on the future, the acquisition of Inter Pag prepares Banco Inter to shape tomorrow's financial transactions, not only meeting but also anticipating the needs of its customers with innovation, agility and accessibility.

i. Consideration transferred

The table below summarizes the values of the consideration transferred:

In thousands of Reais	Inter Pag
Cash and cash equivalents	111,785
Total consideration transferred	111,785

Identifiable assets acquired, liabilities assumed and goodwill

The carrying value of Inter Pag's identifiable assets and liabilities on the acquisition date are presented below:

16

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

In thousands of Reais	Inter Pag
Assets	1,198,150
Cash and cash equivalents	30,110
Loans and advances to financial institutions	777,806
Deferred tax assets	86,588
Property and equipment	155,992
Intangible	52,840
Other assets	94,814
Liabilities	1,163,822
Liabilities with financial institutions	831,134
Loans and transfers	303,728
Current taxes	1,876
Provisions	5,708
Other liabilities	21,376
Total net identifiable assets at fair value	34,328
Previously held shareholding	(17,164)
Goodwill on acquisition (a)	94,621
Total consideration	111,785

(a)Inter has engaged an independent valuation service to develop a study on the allocation of the purchase price (“PPA”) of the identifiable assets acquired, liabilities assumed and goodwill related to the acquisition of Inter Pag. However, as of the date of publication of these financial statements, the study is still in the preparation phase. The preliminary goodwill resulting from the acquisition of Inter Pag is R$94,621. The recognized goodwill is not expected to be deductible for income tax purposes. This amount represents the future economic benefits arising from the synergies between Inter Pag, a Brazilian card payment services company, and Banco Inter’s ecosystem. This acquisition will allow Banco Inter to integrate Inter Pag’s comprehensive technology, strengthening its offering of smart payment solutions to the market. With its vision focused on the future, Banco Inter is prepared to shape tomorrow’s financial transactions, not only by meeting but also anticipating the needs of its customers.

On the date of acquisition of Inter Pag Instituição de Pagamento S.A. (previously called Granito Soluções em Pagamento S.A.), provisions in the amount of R$5,708 were recorded, resulting from labor lawsuits of various natures (payment of overtime, unhealthy and dangerous work conditions, and severance pay) that are in different procedural stages and civil lawsuits. On the balance sheet date, the provisions were reassessed and the amount of R$6,140 was determined, based on the expected probable result.

ii.    Acquisition cost

Inter incurred acquisition-related costs of R$255 for legal fees and due diligence costs. These costs were recorded as “Administrative expenses” in the income statement.

iii.    Contribution to the group's result

In the period ended September 30, Inter Pag contributed net revenue of R$56,077 and a loss of R$5,010 to the Group's results. If the acquisition had occurred on January 1, 2024, it would have contributed with a net revenue of R$140,251 and a loss of R$9,970.

5.Operational segments

Operating segments are disclosed based on internal information that is used by the chief operating decision maker to allocate resources and to assess performance. The chief operating decision-maker, responsible for allocating resources, evaluating the performance of the operating segments and responsible for making strategic decisions for the Inter&Co, is the CEO, together with the Board of Directors.

Profit by operating segment

Each operating segment is composed of one or more legal entities. The measurement of profit by operating segment takes into account all revenues and expenses recognized by the companies that make up each segment.

17

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

Transactions between segments are carried out under terms and rates compatible with those practiced with third parties, where applicable. The Inter&Co does not have any single customer accounting for more than 10% of its total net revenue.

a.Banking & Spending

This segment includes banking products and services such as current accounts, debit and credit cards, deposits, loans, advances to customers, debt collection activities and other services provided to customers, mainly through the Inter app. The segment also includes foreign exchange services, remittances of funds between countries, including the Global Account digital solution, smart card payment solutions, together with the investment funds consolidated by the Group.

b.Investments

This segment is responsible for operations related to the acquisition, sale and custody of securities, the structuring and distribution of securities in the capital market and operations related to the management of fund portfolios and other assets (purchase, sale, risk management). Revenues consist primarily of administration fees and commissions charged to investors for the rendering of such services.

c.Insurance Brokerage

This segment offers insurance products underwritten by insurance companies with which Inter has an agreement (‘partner insurance companies’), including warranties, life, property and automobile insurance and pension products, as well as consortium products provided by a third party with whom Inter has a commercial agreement. The income from brokerage commissions is recognized in the income statement when services are provided, that is, when the performance obligation is fulfilled upon sale to the customer.

d.Inter Shop

This segment includes sales of goods and/or services with partner companies through our digital platform. The segment income is primarily comprised of commissions received for sales and/or for the rendering of these services.

18

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

Segment information

	As of and for June 30, 2024
	Banking & Spending	Investments	Insurance Brokerage	Inter Shop	Total of reportable segments	Others	Eliminations	Consolidated
Interest income	3,706,076	8,698	—	54,206	3,768,980	32,868	318	3,802,166
Interest expenses	(2,400,166)	(8,749)	—	—	(2,408,915)	35,036	3,372	(2,370,507)
Income from securities and derivatives	1,616,441	68,628	2,866	23,890	1,711,825	(4,702)	(3,690)	1,703,433
Net interest income and income from securities and derivatives	2,922,351	68,577	2,866	78,096	3,071,890	63,202	—	3,135,093
Net revenues from services and commissions	876,180	100,719	137,377	120,438	1,234,714	4,438	—	1,239,152
Expenses from services and commissions (a)	(54,726)	1	(41,821)	(8,087)	(104,633)	(8)	—	(104,641)
Other revenues	306,643	15,419	35,577	24,215	381,854	139,224	(235,006)	286,072
Revenues	4,050,448	184,716	133,999	214,662	4,583,825	206,856	(235,006)	4,555,675
Impairment losses on financial assets	(1,302,492)	—	—	—	(1,302,492)	(1,231)		(1,303,723)
Administrative expenses	(1,158,485)	(52,601)	(6,790)	(42,326)	(1,260,202)	(12,695)	—	(1,272,897)
Personnel expenses	(508,482)	(54,706)	(16,901)	(35,462)	(615,551)	(38,074)	—	(653,625)
Tax expenses	(218,307)	(12,931)	(14,852)	(38,979)	(285,069)	(24,313)	—	(309,382)
Depreciation and amortization	(134,962)	(4,700)	(1,142)	(7,251)	(148,055)	(229)	—	(148,284)
Income from equity interests in associates	(2,480)	—	—	—	(2,480)	—	—	(2,480)
Profit before income tax	725,240	59,778	94,314	90,644	969,976	130,314	(235,006)	865,283
Income tax	(81,657)	(19,979)	(29,581)	(60,154)	(191,371)	3,973	—	(187,397)
Profit for the year	643,583	39,799	64,733	30,490	778,605	134,287	(235,006)	677,886
	As of and for June 30, 2024
	Banking & Spending	Investments	Insurance Brokerage	Inter Shop	Total of reportable segments	Others	Eliminations	Consolidated
Total assets	68,507,404	874,516	296,789	970,308	70,649,017	(288,976)	(795,715)	69,564,326
Total liabilities	60,747,055	460,122	131,718	724,974	62,063,869	(1,149,363)	(217,519)	60,696,987
Total equity	7,760,349	414,394	165,071	245,334	8,585,148	860,387	(578,196)	8,867,339

(a) In the Insurance Brokerage segment, it considers the provision for cancelled sales.

19

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

	As of and for September 30, 2023
	Banking & Spending	Investments	Insurance Brokerage	Inter Shop	Total of reportable segments	Others	Eliminations	Consolidated
Interest income	3,257,024	14,857	—	25,217	3,297,098	2,512	(28,643)	3,270,967
Interest expenses	(2,131,885)	(28,381)	—	—	(2,160,266)	(9,928)	34,819	(2,135,375)
Income from securities and derivatives	1,142,562	33,045	1,513	23,849	1,200,969	1,809	(6,176)	1,196,602
Net interest income and income from securities and derivatives	2,267,701	19,521	1,513	49,066	2,337,801	(5,607)	—	2,332,194
Net revenues from services and commissions	643,107	66,496	87,090	125,969	922,662	5,995	—	928,657
Expenses from services and commissions	(99,496)	(155)	—	(2)	(99,653)	(19)	—	(99,672)
Other revenues	326,484	12,694	37,349	21,986	398,513	3,632	(123,680)	278,465
Revenues	3,137,796	98,556	125,952	197,019	3,559,323	4,001	(123,680)	3,439,644
Impairment losses on financial assets	(1,151,127)	—	—	(6,013)	(1,157,140)	—	—	(1,157,140)
Administrative expenses	(956,943)	(51,138)	(33,610)	(44,364)	(1,086,055)	(10,305)	—	(1,096,360)
Personnel expenses	(469,772)	(49,314)	(13,238)	(26,700)	(559,024)	(10,298)	—	(569,322)
Tax expenses	(176,365)	(8,305)	(11,596)	(25,468)	(221,734)	(13,672)	—	(235,406)
Depreciation and amortization	(108,752)	(3,012)	(626)	(6,732)	(119,122)	(146)	—	(119,268)
Income from equity interests in associates	(30,597)	—	—	—	(30,597)	—	—	(30,597)
Profit / (loss) before income tax	244,240	(13,213)	66,882	87,742	385,651	(30,420)	(123,680)	231,551
Income tax	14,746	7,194	(22,723)	(36,202)	(36,985)	(2,017)	—	(39,002)
Profit / (loss) for the year	258,986	(6,019)	44,159	51,540	348,666	(32,437)	(123,680)	192,549
	As of and for December 31, 2023
	Banking & Spending	Investments	Insurance Brokerage	Inter Shop	Total of reportable segments	Others	Eliminations	Consolidated
Total assets	60,102,556	570,182	211,213	337,810	61,221,761	96,447	(966,411)	60,351,797
Total liabilities	52,501,608	326,926	96,198	141,600	53,066,332	(19,167)	(292,059)	52,755,106
Total equity	7,600,948	243,256	115,015	196,210	8,155,429	115,614	(674,352)	7,596,691

20

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

6.Financial risk management

Risk management at Inter&Co includes credit, market, liquidity and operational risks. Risk management activities are carried out by independent and specialized structures, in accordance with previously defined policies and strategies. In general, the activities and processes seek to identify, measure, and control the financial and non-financial risks to which Inter is subject.

The model adopted by Inter&Co, Inc., involves a structure of areas and committees that seek to ensure:

•Segregation of function;

•Specific unit for risk management;

•Defined management process;

•Clear norms and competence structure;

•Defined limits and margins; and

•Reference to best management practices.

a.Credit risk

Credit risk is defined as the possibility of losses associated with the failure of the borrower or counterparty to meet their respective financial obligations in the agreed-upon terms or the devaluation of a credit agreement arising from the increased risk of default by the borrower, among others.

The financial instruments subject to credit risk are submitted to careful credit evaluation prior to contracting, as well as throughout the term of the respective operations. The credit analyses are based on the borrower's (or counterparty's) economic and financial capacity behavior, including payment history and credit reputation, in addition to the terms and conditions of the respective credit operation, including terms, rates and guarantees.

Loans and advances to customers, as shown in Note 12, are mainly represented by the following operations:

•Credit card: credit operations related to credit card limits, mostly without attached guarantees;

•Business loans: working capital operations, receivables, discounts and loans in general, with or without attached guarantees;

•Real estate loans: loans and financing operations secured by real estate, with attached guarantees;

•Personal loans: loan and payroll card operations, personal loans with and without transfer guarantees; and

•Agribusiness loans:financing operations for costing, investment, commercialization and/or industrialization granted to rural producers, with or without attached guarantees.

Mitigation of Exposure

In order to maintain the exposures within the risk levels established by senior management, Inter adopts measures to mitigate credit risk. Exposure to credit risk is mitigated through the structuring of guarantees, adapting the risk level to be incurred to the characteristics of the collateral taken at the time of granting. Risk indicators are monitored on an on-going basis and proposal for alternatives forms of mitigation are assessed, whenever the exposure behavior to credit risk of any unit, region, product or segment requires it. Additionally, credit risk mitigation takes place through product repositioning and adjusting operational processes or operation approval levels.

21

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

In addition to the activities described above, goods pledged in guarantee are subject to a technical assessment / valuation at least once every twelve months. In the case of personal guarantees, an analysis of the financial and economic circumstances of the guarantor is made considering their other debts with third parties, including tax, social security and labor debt.

Credit standards guide operational units and cover, among other aspects, the classification, requirement, selection, assessment, formalization, control and reinforcement of guarantees, aiming to ensure the adequacy and sufficiency of mitigating instruments throughout the cycle of the loan.

In 2024 there were no material changes to the nature of the credit risk exposures, how they arise or the Group’s objectives, policies and processes for managing them, although Inter continues to refine its internal risk management processes.

Measurement

The measurement of credit risk by Inter&Co is carried out considering the following:

•At the time that credit is granted, an assessment of a customer’s financial condition is undertaken through the application of qualitative and quantitative methods and using information collected from the market, in order to support the adequacy of the risk exposure being proposed;

•The assessment is carried out at the counterparty level, considering information on guarantors where applicable. The exposure to the credit risk is also measured in extreme scenarios, using stress techniques and scenario analysis. The models applied to determine the rating of customers and loans are reviewed periodically in order to ensure they reflect the macroeconomic scenario and actual loss experience, as per information in note 12;

•The aging of late payments in portfolios is monitored in order to identify trends or changes in the behavior of non-performing loans and allow the adoption of mitigating measures when required;

•Expected credit loss reflects the risk level of loans and allows monitoring and control of the portfolio’s exposure level and the adoption of risk mitigation measures;

•The expected credit loss is a forecast of the risk levels of the credit portfolio. Its calculation is based on the historical payment behavior and the distribution of the portfolio by product and risk level. This is a key input to the process of pricing loans and advances to customers; and

•In addition to the monitoring and measurement of indicators under normal conditions, simulations of changes in business environment and economic scenario are also performed in order to predict the impact of such changes in levels of exposure to risks, provisions and balance of such portfolios and to support the process of reviewing the exposure limits and the credit risk policy.

b.Description of guarantees

The financial instruments subject to credit risk are subject to careful assessment of credit prior to being contracted and disbursed and risk assessment is ongoing throughout the term of the instruments. Credit assessments are based on an understanding of the customers’ operational characteristics, their indebtedness capacity, considering cash flow, payment history and credit reputation, and any guarantees given.

Loans and advances to customers, as shown in Note 12, are mainly represented by the following operations:

•Working capital operations: are guaranteed by receivables, promissory notes, sureties provided by their owners and occasionally by property or other tangible assets, when applicable;

22

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

•Payroll loans repayments: are mainly represented by payroll loan cards and personal loans. These are deducted directly from the borrowers’ pensions, income or salaries and settled directly by the entity responsible for making those payments (e.g. company or government body); The anniversary withdrawal is an option of the FGTS (Service Time Guarantee Fund) that allows the worker to withdraw a part of the fund balance annually, where the guarantee of this operation is the balance available in their FGTS account;

•Personal loans and credit cards: generally, do not have guarantees; and

•Real estate financing: is collateralized by the real estate financed.

Guarantees of real estate loans and financing

The following table shows the value of real estate-backed financing, broken down by loan to value. Loan to Value (LTV) is the ratio between the value of a loan and the value of the asset being financed. A higher LTV may signal greater risk to the lender, as it indicates a lower share of the borrower's equity in the transaction.

	09/30/2024	12/31/2023
Lower than 30%	1,251,320	1,210,884
31 - 50%	2,586,405	2,157,130
51 - 70%	4,137,072	3,227,703
71 - 90%	1,984,204	1,664,885
Higher than 90%	307,208	322,966
	10,266,209	8,583,568

c.Liquidity risk

Liquidity risk is the possibility that the Inter&Co will not be able to efficiently meet its expected or unexpected financial obligations, including those arising from guarantees provided or even unexpected redemptions from customers. Therefore, liquidity risk also includes the possibility that Inter will not be able to negotiate the sale of assets at market prices due to their volume in relation to the volume normally traded or due to some discontinuity in the market.

The liquidity risk management structure is segregated and acts proactively with the objective of monitoring and preventing any violation of the liquidity ratio limits. Liquidity risk monitoring covers the entire flow of receipts and payments of the Inter&Co so that risk mitigation actions can be implemented. This monitoring is carried out primarily by the Assets and Liabilities Committee and the Risk and Capital Management Committee. These committees assess the liquidity risk information that is available in the Inter&Co's systems, such as:

•Top 10 investors;

•Mismatch between assets and liabilities;

•Net Funding; Liquidity limits; Maturity forecast;

•Stress tests based on internally defined scenarios;

•Liquidity contingency plans;

•Monitoring of asset and liability concentrations;

•Monitoring of Liquidity Ratio and funding renewal rates; and

•Reports with information on positions held by Inter and its subsidiaries.

In 2024 there were no material changes to the nature of the liquidity risk exposures, how they arise or the Group’s objectives, policies and processes for managing them, although the Group continues to refine its internal risk management processes.

23

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

The responsibilities of the Liquidity Risk Management Framework are distributed between different committees and hierarchical levels, including: Board of Directors, Asset and Liability Committee (ALC), Officer in charge of Risk Management, Superintendent of Compliance, Risk Management and Internal Controls and Risk Coordination. These consider the internal and external factors affecting the liquidity of the Group, and a detailed daily monitoring of incoming and outgoing movements of loans and advances to customers, time deposits, savings, Agribusiness Credit Bills (LCA), Real Estate Secured Bonds (LCI), Guaranteed Real Estate Letters (LIG) and demand deposits is performed. Time deposits are analyzed according to the concentration, maturities, renewals, repurchases and new funding.

d.Analyses of financial instruments by remaining contractual term

The table below presents the projected future realizable value of Inter&Co’s financial assets and liabilities by contractual term:

		Current			Non-Current		Total	Total
	Note	1 to 30 days	31 to 180 days	181 to 365 days	1 to 5 Years	Over 5 years	09/30/2024	12/31/2023
Financial assets
Cash and cash equivalents	8	2,273,565	—	—	—	—	2,273,565	4,259,379
Amounts due from financial institutions	9	4,185,156	—	—	—	—	4,185,156	2,664,415
Compulsory deposits at Central Bank of Brazil		3,413,490	1,810,766	1,226	—	—	5,225,482	3,718,506
Securities	10	2,456,626	1,207,556	661,212	12,481,290	3,779,671	20,586,355	16,868,112
Derivative financial	11	273	4,632	13,524	—	—	18,429	4,238
Loans and advances to customers	12.e	2,246,047	4,703,162	6,888,301	5,082,474	12,558,438	31,478,422	27,900,543
Other assets (a)	17	—	—	—	—	82,469	82,469	109,682
Total		14,575,157	7,726,116	7,564,263	17,563,764	16,420,578	63,849,878	55,524,875
Financial liabilities
Liabilities with financial and similar institutions	18	10,403,659	—	194	—	—	10,403,853	9,522,469
Liabilities with customers	19	17,888,906	1,416,266	2,963,992	16,860,595	—	39,129,759	32,651,620
Securities issued	20	204,125	2,240,225	3,325,860	3,277,446	—	9,047,656	8,095,042
Derivative financial	11	—	4,052	4,726	—	—	8,778	15,063
Borrowing and on-lending	21	96,421	416	499	3,993	13,495	114,824	107,412
Other liabilities (b)	24	—	—	1,616	11,537	106,036	119,189	120,395
Total		28,593,111	3,660,959	6,296,887	20,153,571	119,531	58,824,059	50,512,001

(a)    The financial assets are substantially composed of amounts related to the variable portion of the sale of 40% of the subsidiary Inter Digital Corretora e Consultoria de Seguros Ltda. (“Inter Seguros”), to Wiz Soluções e Corretagem de Seguros SA (“Wiz”) on May 8, 2019.

(b)    Financial liabilities are composed of financial liabilities of leases, as per explanatory note 24.b.

24

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

e.Financial assets and liabilities using a current/non-current classification

The table below represents Inter&Co’s current financial assets (realized within 12 months of the reporting date), non-current financial assets (realized more than 12 months after the reporting date) and current financial liabilities (it is due to be settled within 12 months of the reporting date) and non-current financial liabilities (is due to be settled more than 12 months after the reporting date):

		09/30/2024
	Note	Current	Non-current	Total
Assets
Cash and cash equivalents	8	2,273,565	—	2,273,565
Amounts due from financial institutions	9	5,225,482	—	5,225,482
Compulsory deposits at Central Bank of Brazil		4,185,156	—	4,185,156
Securities	10	4,325,394	16,260,961	20,586,355
Derivative financial	11	18,489	—	18,489
Loans and advances to customers, net of provisions for expected loss	12	13,837,510	17,640,912	31,478,422
Other assets (a)	17	—	82,469	82,469
Total		29,865,596	33,984,342	63,849,938
Liabilities
Liabilities with financial and similar institutions	18	10,403,853	—	10,403,853
Liabilities with customers	19	22,269,164	16,860,595	39,129,759
Securities issued	20	5,770,210	3,277,446	9,047,656
Derivative financial	11	8,778	—	8,778
Borrowing and on-lending	21	97,336	17,488	114,824
Other liabilities (b)	24	1,616	117,573	119,189
Total		38,550,957	20,273,102	58,824,059

(a)    The financial assets are substantially composed of amounts related to the variable portion of the sale of 40% of the subsidiary Inter Digital Corretora e Consultoria de Seguros Ltda. (“Inter Seguros”), to Wiz Soluções e Corretagem de Seguros SA (“Wiz”) on May 8, 2019.

(b)    Financial liabilities are composed of financial liabilities of leases, as per explanatory note 24.b.

25

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

		12/31/2023
	Note	Current	Non-current	Total
Assets
Cash and cash equivalents	8	4,259,379	—	4,259,379
Amounts due from financial institutions	9	3,718,506	—	3,718,506
Compulsory deposits at Central Bank of Brazil		2,664,415	—	2,664,415
Securities	10	702,823	16,165,289	16,868,112
Derivative financial	11	4,238	—	4,238
Loans and advances to customers, net of provisions for expected loss	12	14,117,647	13,751,812	27,869,459
Other assets (a)	17	—	109,682	109,682
Total		25,467,008	30,026,783	55,493,791
Liabilities
Liabilities with financial and similar institutions	18	9,522,469	—	9,522,469
Liabilities with customers	19	19,209,323	13,442,297	32,651,620
Securities issued	20	5,039,791	3,055,251	8,095,042
Derivative financial	11	9,981	5,082	15,063
Borrowing and on-lending	21	87,122	20,290	107,412
Other liabilities (b)	24	6,016	114,379	120,395
Total		33,874,702	16,637,299	50,512,001

(a)    The financial assets are substantially composed of amounts related to the variable portion of the sale of 40% of the subsidiary Inter Digital Corretora e Consultoria de Seguros Ltda. (“Inter Seguros”), to Wiz Soluções e Corretagem de Seguros SA (“Wiz”) on May 8, 2019.

(b)    Financial liabilities are composed of financial liabilities of leases, as per explanatory note 24.b.

f.Market risk

Market risk is the possibility of losses resulting from fluctuations in the fair value of financial instruments held by the Institution and its subsidiaries, including the risks of transactions subject to changes in foreign exchange rates, interest rates, stock prices and commodity prices.

At Inter&Co, market risk management has, among others, the objective of supporting the business areas, establishing processes and implementing tools necessary for the assessment and control of related risks, allowing the measurement and monitoring of risk levels, as defined by Senior Management.

The market risk policy is monitored by the Asset and Liability Committee. Market risk controls allow the analytical assessment of information and are in a constant process of improvements. The Institution and its subsidiaries have improved the internal aspects of risk management and mitigation.

Measurement

Within the risk management process, Inter&Co classifies its operations, including derivative financial instruments, as follows:

•Trading book: considers all operations intended to be traded before their contractual maturity or intended to hedge the trading portfolio and which are not subject to limitations on their negotiability.

•Banking book: considers operations not classified in the trading portfolio, the main characteristic of which is the intention to hold the respective operations until maturity

In line with market practices, Inter&Co manages its risks dynamically, seeking to identify, measure, evaluate, monitor, report, control and mitigate the exposures to market risks of its own positions. One of the methods of assessing the positions subject to market risk is the Value at Risk (VaR) model. The methodology used to calculate the VaR is the parametric model with a confidence level (CL) of 99% and a time horizon (TH) of twenty one days.

26

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

We present the trading book 21-day VaR below:

Risk factor	09/30/2024		12/31/2023
Price index coupons	7,473		2,730
Pre fixed interest rate	1,820		1,074
Foreign currency coupons	1,426		665
Foreign currencies	17,099		2,346
Subtotal	27,818		6,815
Diversification effects (correlation)	12,836		3,794
Value-at-Risk	14,982		3,021
VaR on Asset	0.02	%	0.01	%

We present the trading book VaR below:

Risk factor	09/30/2024		12/31/2023
Price index coupons	834,710		425,156
Interest rate coupons	24,903		108,716
Pre fixed interest rate	29,834		49,019
Foreign currency coupon	76,900		—
Others	274		22,538
Subtotal	966,621		605,429
Diversification effects (correlation)	136,064		164,555
Value-at-Risk	830,557		440,874
VaR on Asset	1.19	%	0.73	%

g.Sensitivity analysis

To determine the sensitivity of the positions to market movements, a sensitivity analysis was carried out in different scenarios, considering the relevant risk factors in the period analyzed, and using scenarios that would negatively affect our positions, as follows:

•Scenario I: based on market information, shocks were applied and 1 basis point for interest rates and 1% variation for prices (foreign currencies and shares);

•Scenario II: shocks of 25% variation in market curves and prices were determined;

•Scenario III: shocks of 50% variation in market curves and prices were determined.

It should be noted that the impacts reflect a static view of the portfolio and that the dynamism of the market and the composition of the portfolio means that these positions change continuously and do not necessarily reflect the position demonstrated here. The group has a process of continuous monitoring of market risk and, in the event of position/portfolio deterioration, mitigating actions are taken to minimize possible negative effects.

27

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

Exposures - R$ thousand
Banking and Trading book	Scenarios					09/30/2024
Risk factor	Rate variation in scenario 1	Scenario I	Rate variation in scenario 2	Scenario II	Rate variation in scenario 3	Scenario III
IPCA coupon	increase	(5,249)	increase	(758,330)	increase	(1,394,366)
Others	increase	(29)	increase	(4,257)	increase	(8,436)
Pre-fixed rate	increase	(2,509)	increase	(722,151)	increase	(1,355,424)
TR coupon	increase	(468)	increase	(106,823)	increase	(186,285)

Exposures - R$ thousand
Banking and Trading book	Scenarios					12/31/2023
Risk factor	Rate variation in scenario 1	Scenario I	Rate variation in scenario 2	Scenario II	Rate variation in scenario 3	Scenario III
IPCA coupon	increase	(4,737)	increase	(561,583)	increase	(1,046,456)
Others	decrease	(21)	decrease	(718)	decrease	(1,996)
Pre-fixed rate	increase	(1,533)	increase	(367,626)	increase	(707,232)
TR coupon	increase	(800)	increase	(163,354)	increase	(289,028)

h.Operational risk

Policy

Operational risk management aims to identify, assess and monitor risks, and is defined as the risk of losses resulting from inadequate or failed internal processes, people and systems, or external events. This definition includes legal risk, but excludes strategic and reputational risk.

Operational risk events can be classified:

•Internal fraud;

•External fraud;

•Labor demands and poor workplace safety;

•Inappropriate practices relating to end users, customers, products and services;

•Damage to physical assets owned or used by the institution;

•Situations that lead to the interruption of the institution's activities or the discontinuity of services provided, including payments;

•Failures in information technology (IT) systems, processes or infrastructure; and

•Failures in the execution, compliance with deadlines or management of the institution's activities, including those related to payment arrangements.

For payment activities, failures include: I - failures in the protection and security of sensitive data related to both end-user credentials and other information exchanged for the purpose of carrying out payment transactions; II - failures in the identification and authentication of the end-user in a payment transaction; III - failures in the authorization of payment transactions; and IV - failures in the initiation of a payment transaction.

We adopt the three lines of defense model, the structure and activities of the three lines often varies, depending on the bank’s portfolio of products, activities, processes and systems; the bank’s size; and its risk management approach. A strong risk culture and good communication among the three lines of defense are important characteristics of good operational risk governance.

28

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

Phases of the Management Process

Qualitative Evaluation

The qualitative assessment uses a scale which considers measures for probability and impact, taking into account the vulnerabilities and threats that, combined, determine the level of risk exposure to each event. Identification and verification is performed by in-person monitoring, interviews and workshops with the managers and employees from all operational areas, business partners and business units.

The identified risks are categorized and organized by risk factors.

Quantitative Evaluation

In the quantitative assessment of operational risk, the Group maintains an internal database fed by various sources of information. This contains descriptions and details of operational losses. In the quantitative assessment, information from external sources deemed reliable and relevant to the businesses of the Group may also be used.

Monitoring

An effective risk management process requires a communication and review structure that ensures the correct, effective and timely identification and assessment of the risks. In addition, it also seeks to assure that controls and responses to these risks are implemented.

Control tests and regular audits intended to verify compliance with applicable policies and standards are performed. The monitoring and review process seeks to verify whether:

•The adopted measures have achieved the intended results;

•The procedures adopted and the information gathered to perform the assessment were appropriate;

•Higher levels of knowledge may have contributed to make better decisions; and

•There is an effective possibility of obtaining information for future assessments.

7.Fair values of financial instruments

a.Financial instruments – Classification and fair values

Financial Instruments are classified into the following categories:

•Amortized cost;

•Fair value through other comprehensive income (FVOCI); and

•Fair value through profit or loss (FVTPL).

The fair value of a financial asset or liability is measured using one of three approaches below, weighting the levels of the fair value hierarchy as follows:

•Level I – instruments with prices traded in the active market;

•Level II – using financial valuation techniques, weighing data and market variables; and

•Level III – uses meaningful variables that are not based on market data.

The following table sets forth the breakdown of financial assets and liabilities according to the accounting classification. It also shows the carrying amounts and fair values of financial assets and liabilities, including their levels in the fair value hierarchy. It does not include information on the fair value of financial assets and liabilities, when the carrying amount is a reasonable approximation of the fair value.

29

Notes to the Unaudited interim condensed consolidated financial statement As of September 30, 2024

As of September 30, 2024
Financial assets	Level 1	Level 2	Level 3 (*)	Fair value	Carrying amount
Amortized cost	—	—	82,469	82,469	44,373,861
Loans and advances to customers, net of provisions for expected loss	—	—	—	—	31,478,422
Amounts due from financial institutions	—	—	—	—	5,225,482
Deposits at Central Bank of Brazil	—	—	—	—	4,185,156
Cash and cash equivalents	—	—	—	—	2,273,565
Brazilian government securities	—	—	—	—	660,311
Rural product bill	—	—	—	—	468,456
Other assets	—	—	82,469	82,469	82,469
Fair value through profit or loss	554,590	878,944	—	1,433,534	1,433,534
Brazilian government securities	339,924	101,752	&