SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
Mar. 31, 2026
Accounting Policies [Abstract]
Nature of Operations and Basis of Presentation	Nature of Operations OFG is a publicly-owned financial holding company incorporated under the laws of the Commonwealth of Puerto Rico. OFG operates through various subsidiaries, including a commercial bank, Oriental Bank (the “Bank”), a securities broker-dealer and investment adviser, Oriental Financial Services LLC (“Oriental Financial Services”), an insurance agency, Oriental Insurance, LLC (“Oriental Insurance”), a captive reinsurance company, OFG Reinsurance Ltd (“OFG Reinsurance”), and OFG Ventures LLC (“OFG Ventures”), which holds equity investments. Through these subsidiaries and their respective divisions, OFG provides a wide range of banking and financial services such as commercial, consumer, auto, and mortgage lending, financial planning, insurance sales, investment advisory, and securities brokerage services, as well as corporate trust services. The Bank has a wholly-owned operating subsidiary, OFG USA LLC (“OFG USA”), which is a commercial lender organized in Delaware. In addition, Oriental International Bank Inc. (“OIB”), a wholly-owned subsidiary of the Bank, and Oriental Overseas, a division of the Bank, are international banking entities licensed pursuant to the International Banking Center Regulatory Act of Puerto Rico, as amended. OIB and Oriental Overseas offer the Bank certain Puerto Rico tax advantages. Their activities are limited under Puerto Rico law to assets/liabilities located outside of Puerto Rico. The Bank also has a wholly-owned subsidiary, OBPEF LLC (“OBPEF”), which is a private equity fund under the Puerto Rico Incentives Code, as amended, whose objective is to provide financing to eligible borrowers, whether in the form of senior or subordinated debt, to support the economic development of Puerto Rico. Basis of Presentation The accompanying unaudited consolidated financial statements of OFG have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and in accordance with guidance provided by the Securities and Exchange Commission (“SEC”). Accordingly, these consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited consolidated financial statements reflect all adjustments considered necessary for a fair presentation of the financial position, results of operations and cash flows of OFG on a consolidated basis, and all such adjustments are of a normal recurring nature. The consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes thereto included in OFG’s annual report on Form 10-K for the fiscal year ended December 31, 2025 (the “2025 Form 10-K”). Operating results for the quarter ended March 31, 2026, are not necessarily indicative of the results that may be expected for the year ending December 31, 2026. OFG evaluated subsequent events through the filing date of this report with the SEC and has recorded or disclosed those material events or transactions as described within the accompanying consolidated financial statements and notes. Material estimates that are particularly susceptible to significant change in the near term relate mainly to the determination of the allowance for credit losses.
New Accounting Updates Not Yet Adopted	New Accounting Updates Not Yet Adopted Codification Improvements. In December 2025, the FASB issued ASU 2025-12, which is intended to facilitate codification updates for a broad range of topics arising from technical corrections, unintended application of the codification, clarifications, and other minor improvements. The amendments in ASU 2025-12 are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods within those annual reporting periods. Early adoption is permitted on an issue-by-issue basis, and an entity may apply certain amendments prospectively while applying others retrospectively. We will adopt this guidance when it becomes effective in 2028. We are currently evaluating the impact on our financial statements and disclosures. Interim Reporting (Topic 270): Narrow-Scope Improvements. In December 2025, the FASB issued ASU 2025-11, which is intended to improve the navigability of the guidance in ASC 270 and clarify when it applies. Under the amendments, an entity is subject to ASC 270 if it provides “interim financial statements and notes in accordance with GAAP,” with the aim of improving clarity and consistency without significantly changing existing practices. The amendments in ASU 2025-11 are effective for interim reporting periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted, and entities may apply the amendments either prospectively or retrospectively to any or all prior periods presented in the financial statements. We will adopt this guidance when it becomes effective in 2028. We are currently evaluating the impact on our financial statements and disclosures. Financial Instruments—Credit Losses (Topic 326): Purchased Loans. In November 2025, the FASB issued ASU 2025-08, which amends the guidance in ASC 326 on the accounting for certain purchased loans. Under the ASU, entities must account for acquired loans (excluding credit cards) that meet certain criteria at acquisition (“purchased seasoned loans”) by recognizing them at their purchase price plus an allowance for expected credit losses under the gross-up approach, aligning the accounting for purchased seasoned loans with the treatment of financial assets purchased with more-than-insignificant credit deterioration since origination (“PCD assets”). The amendments are effective for annual reporting periods beginning after December 15, 2026, including interim reporting periods within those annual reporting periods. Early adoption is permitted, and entities must apply the amendments prospectively. We will adopt this guidance when it becomes effective in 2027. We are currently evaluating the impact on our financial statements and disclosures. Disaggregation of Income Statement Expenses. In November 2024, the FASB issued ASU 2024-03, which requires disaggregated disclosure of income statement expenses for public business entities. The ASU does not change the expense captions an entity presents on the face of the income statement; rather, it requires disaggregation of certain expense captions into specified categories in disclosures within the footnotes to the financial statements. The amendments are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted, and entities may apply the amendments on a prospective basis. We will adopt this guidance when it becomes effective in 2027. We are currently evaluating the impact on our financial statements and disclosures.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

3 Months Ended

Mar. 31, 2026

Nature of Operations and Basis of Presentation

Nature of Operations

OFG is a publicly-owned financial holding company incorporated under the laws of the Commonwealth of Puerto Rico. OFG operates through various subsidiaries, including a commercial bank, Oriental Bank (the “Bank”), a securities broker-dealer and investment adviser, Oriental Financial Services LLC (“Oriental Financial Services”), an insurance agency, Oriental Insurance, LLC (“Oriental Insurance”), a captive reinsurance company, OFG Reinsurance Ltd (“OFG Reinsurance”), and OFG Ventures LLC (“OFG Ventures”), which holds equity investments. Through these subsidiaries and their respective divisions, OFG provides a wide range of banking and financial services such as commercial, consumer, auto, and mortgage lending, financial planning, insurance sales, investment advisory, and securities brokerage services, as well as corporate trust services. The Bank has a wholly-owned operating subsidiary, OFG USA LLC (“OFG USA”), which is a commercial lender organized in Delaware. In addition, Oriental International Bank Inc. (“OIB”), a wholly-owned subsidiary of the Bank, and Oriental Overseas, a division of the Bank, are international banking entities licensed pursuant to the International Banking Center Regulatory Act of Puerto Rico, as amended. OIB and Oriental Overseas offer the Bank certain Puerto Rico tax advantages. Their activities are limited under Puerto Rico law to assets/liabilities located outside of Puerto Rico. The Bank also has a wholly-owned subsidiary, OBPEF LLC (“OBPEF”), which is a private equity fund under the Puerto Rico Incentives Code, as amended, whose objective is to provide financing to eligible borrowers, whether in the form of senior or subordinated debt, to support the economic development of Puerto Rico.

Basis of Presentation

The accompanying unaudited consolidated financial statements of OFG have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and in accordance with guidance provided by the Securities and Exchange Commission (“SEC”). Accordingly, these consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

In the opinion of management, the accompanying unaudited consolidated financial statements reflect all adjustments considered necessary for a fair presentation of the financial position, results of operations and cash flows of OFG on a consolidated basis, and all such adjustments are of a normal recurring nature. The consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes thereto included in OFG’s annual report on Form 10-K for the fiscal year ended December 31, 2025 (the “2025 Form 10-K”). Operating results for the quarter ended March 31, 2026, are not necessarily indicative of the results that may be expected for the year ending December 31, 2026. OFG evaluated subsequent events through the filing date of this report with the SEC and has recorded or disclosed those material events or transactions as described within the accompanying consolidated financial statements and notes. Material estimates that are particularly susceptible to significant change in the near term relate mainly to the determination of the allowance for credit losses.

New Accounting Updates Not Yet Adopted

Codification Improvements. In December 2025, the FASB issued ASU 2025-12, which is intended to facilitate codification updates for a broad range of topics arising from technical corrections, unintended application of the codification, clarifications, and other minor improvements. The amendments in ASU 2025-12 are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods within those annual reporting periods. Early adoption is permitted on an issue-by-issue basis, and an entity may apply certain amendments prospectively while applying others retrospectively. We will adopt this guidance when it becomes effective in 2028. We are currently evaluating the impact on our financial statements and disclosures.

Interim Reporting (Topic 270): Narrow-Scope Improvements. In December 2025, the FASB issued ASU 2025-11, which is intended to improve the navigability of the guidance in ASC 270 and clarify when it applies. Under the amendments, an entity is subject to ASC 270 if it provides “interim financial statements and notes in accordance with GAAP,” with the aim of improving clarity and consistency without significantly changing existing practices. The amendments in ASU 2025-11 are effective for interim reporting periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted, and entities may apply the amendments either prospectively or retrospectively to any or all prior periods presented in the financial statements. We will adopt this guidance when it becomes effective in 2028. We are currently evaluating the impact on our financial statements and disclosures.

Financial Instruments—Credit Losses (Topic 326): Purchased Loans. In November 2025, the FASB issued ASU 2025-08, which amends the guidance in ASC 326 on the accounting for certain purchased loans. Under the ASU, entities must account for acquired loans (excluding credit cards) that meet certain criteria at acquisition (“purchased seasoned loans”) by recognizing them at their purchase price plus an allowance for expected credit losses under the gross-up approach, aligning the accounting for purchased seasoned loans with the treatment of financial assets purchased with more-than-insignificant credit deterioration since origination (“PCD assets”). The amendments are effective for annual reporting periods beginning after December 15, 2026, including interim reporting periods within those annual reporting periods. Early adoption is permitted, and entities must apply the amendments prospectively. We will adopt this guidance when it becomes effective in 2027. We are currently evaluating the impact on our financial statements and disclosures.

Disaggregation of Income Statement Expenses. In November 2024, the FASB issued ASU 2024-03, which requires disaggregated disclosure of income statement expenses for public business entities. The ASU does not change the expense captions an entity presents on the face of the income statement; rather, it requires disaggregation of certain expense captions into specified categories in disclosures within the footnotes to the financial statements. The amendments are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted, and entities may apply the amendments on a prospective basis. We will adopt this guidance when it becomes effective in 2027. We are currently evaluating the impact on our financial statements and disclosures.