Nature of Business and Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business and Summary of Significant Accounting Policies	Nature of Business and Summary of Significant Accounting Policies First Carolina Financial Services, Inc. (the “Company”) is a bank holding company whose principal subsidiary is First Carolina Bank (the “Bank”). The Bank has one wholly owned subsidiary, BM Technologies, Inc., and one indirect subsidiary, BMTX, Inc., which is wholly owned by BM Technologies, Inc. Through these consolidated subsidiaries, which we refer to herein as BM Tech, we operate a payment processing company focused on higher education funds disbursement. The Company principally operates in two business segments, which are Community Banking and BM Tech. See Note 11-"Segment Reporting", for additional information. On June 17, 2026, the Company effected a 2-for-1 stock split of its common stock. All share and per share amounts presented in the condensed consolidated financial statements have been retroactively adjusted to reflect the stock split for all periods presented. The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all information and disclosures required by GAAP for complete annual financial statements. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the Company’s financial position as of June 30, 2026, and its results of operations and cash flows for the interim periods presented. Operating results for the six months ended June 30, 2026 and 2025 are not necessarily indicative of results that may be expected for the year ending December 31, 2026. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and related notes as of and for the year ended December 31, 2025, included in the Company’s prospectus filed on June 18, 2026, with the Securities and Exchange Commission pursuant to Rule 424(b)(4). The Company’s significant accounting policies are described in Note 1 to those audited consolidated financial statements. There were no material changes to the Company’s significant accounting policies during the six months ended June 30, 2026. The Company applies the same accounting policies in preparing its interim financial statements as it applies in preparing its annual financial statements. Accounting Pronouncements The Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2023-09, Improvements to Income Tax Disclosures. The accounting standard improves the transparency of income tax disclosures by requiring (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. It also includes certain other amendments to improve the effectiveness of income tax disclosures. The accounting standard is effective for the Company for annual periods beginning after December 31, 2025. This standard relates to footnote disclosures only. The Company is evaluating the impact of this standard on its disclosures. 2025-06, Intangibles Goodwill and Other-Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. The ASU modernizes the guidance for internal-use software by eliminating references to project development stages and requiring capitalization of software development costs when management has authorized and committed to funding the project and it is probable the project will be completed, and the software will be used as intended. The ASU is effective for fiscal years beginning after December 15, 2027, and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of the ASU on its financial statements and related disclosures. The Company has further evaluated other Accounting Standards Updates issued during 2026 but does not expect such Accounting Standards updates, other than those summarized above, to have a material impact on the Consolidated Financial Statements.

First Carolina Financial Services, Inc. (the “Company”) is a bank holding company whose principal subsidiary is First Carolina Bank (the “Bank”). The Bank has one wholly owned subsidiary, BM Technologies, Inc., and one indirect subsidiary, BMTX, Inc., which is wholly owned by BM Technologies, Inc. Through these consolidated subsidiaries, which we refer to herein as BM Tech, we operate a payment processing company focused on higher education funds disbursement. The Company principally operates in two business segments, which are Community Banking and BM Tech. See Note 11-"Segment Reporting", for additional information.

On June 17, 2026, the Company effected a 2-for-1 stock split of its common stock. All share and per share amounts presented in the condensed consolidated financial statements have been retroactively adjusted to reflect the stock split for all periods presented.

The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all information and disclosures required by GAAP for complete annual financial statements.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the Company’s financial position as of June 30, 2026, and its results of operations and cash flows for the interim periods presented. Operating results for the six months ended June 30, 2026 and 2025 are not necessarily indicative of results that may be expected for the year ending December 31, 2026.

The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and related notes as of and for the year ended December 31, 2025, included in the Company’s prospectus filed on June 18, 2026, with the Securities and Exchange Commission pursuant to Rule 424(b)(4). The Company’s significant accounting policies are described in Note 1 to those audited consolidated financial statements. There were no material changes to the Company’s significant accounting policies during the six months ended June 30, 2026. The Company applies the same accounting policies in preparing its interim financial statements as it applies in preparing its annual financial statements.

The Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2023-09, Improvements to Income Tax Disclosures. The accounting standard improves the transparency of income tax disclosures by requiring (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. It also includes certain other amendments to improve the effectiveness of income tax disclosures. The accounting standard is effective for the Company for annual periods beginning after December 31, 2025. This standard relates to footnote disclosures only. The Company is evaluating the impact of this standard on its disclosures.

2025-06, Intangibles Goodwill and Other-Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software. The ASU modernizes the guidance for internal-use software by eliminating references to project development stages and requiring capitalization of software development costs when management has authorized and committed to funding the project and it is probable the project will be completed, and the software will be used as intended. The ASU is effective for fiscal years beginning after December 15, 2027, and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of the ASU on its financial statements and related disclosures.

The Company has further evaluated other Accounting Standards Updates issued during 2026 but does not expect such Accounting Standards updates, other than those summarized above, to have a material impact on the Consolidated Financial Statements.