First Bancorp, Inc /ME/

Certain information in this release contains financial information determined by methods other than in accordance with GAAP. Management uses these “non-GAAP” measures in its analysis of the Company's performance (including for purposes of determining the compensation of certain executive officers and other Company employees) and believes that these non-GAAP financial measures provide a greater understanding of ongoing operations and enhance comparability of results with prior periods and with other financial institutions, as well as demonstrating the effects of significant gains and charges in the current period, in light of the disclosure practices employed by many other publicly-traded financial institutions. The Company believes that a meaningful analysis of its financial performance requires an understanding of the factors underlying that performance. Management believes that investors may use these non-GAAP financial measures to analyze financial performance without the impact of unusual items that may obscure trends in the Company's underlying performance. These disclosures should not be viewed as a substitute for operating results determined in accordance with GAAP, nor are they necessarily comparable to non-GAAP performance measures that may be presented by other companies.

In several places net interest income is calculated on a fully tax-equivalent basis. Specifically included in interest income was tax-exempt interest income from certain investment securities and loans. An amount equal to the tax benefit derived from this tax-exempt income has been added back to the interest income total which, as adjusted, increased net interest income accordingly. Management believes the disclosure of tax-equivalent net interest income information improves the clarity of financial analysis, and is particularly useful to investors in understanding and evaluating the changes and trends in the Company's results of operations. Other financial institutions commonly present net interest income on a tax-equivalent basis. This adjustment is considered helpful in the comparison of one financial institution's net interest income to that of another institution, as each will have a different proportion of tax-exempt interest from its earning assets. Moreover, net interest income is a component of a second financial measure commonly used by financial institutions, net interest margin, which is the ratio of net interest income to average earning assets. For purposes of this measure as well, other financial institutions generally use tax-equivalent net interest income to provide a better basis of comparison from institution to institution. The Company follows these practices.

The following table provides a reconciliation of tax-equivalent financial information to the Company's consolidated financial statements prepared in accordance with GAAP. A Federal Income Tax rate of 21.0% was used in 2026 and 2025:

The Company presents its efficiency ratio using non-GAAP information which is most commonly used by financial institutions. The GAAP-based efficiency ratio is non-interest expenses divided by net interest income plus non-interest income from the Consolidated Statements of Income. The non-GAAP efficiency ratio excludes any losses on sales of securities from non-interest expenses, excludes any gains on sales of securities from non-interest income, and adds the tax-equivalent adjustment to net interest income.

The following table provides a reconciliation between the GAAP and non-GAAP efficiency ratio:

The Company presents certain information based upon tangible common equity instead of total shareholders' equity. The difference between these two measures is the Company's intangible assets, specifically goodwill from prior acquisitions. Management, banking regulators, and many stock analysts use the tangible common equity ratio and the tangible book value per common share in conjunction with more traditional bank capital ratios to compare the capital adequacy of banking organizations with significant amounts of goodwill or other intangible assets, typically stemming from the use of the purchase accounting method in accounting for mergers and acquisitions.

The following table provides a reconciliation of average tangible common equity to the Company's consolidated financial statements, which have been prepared in accordance with GAAP:

To provide period-to-period comparison of operating results prior to consideration of credit loss provision and income taxes, the non-GAAP measure of PTPP Net Income is presented. The following table provides a reconciliation to Net Income: