Interest Expense. Total interest expense decreased $423 thousand, or 3.5%, to $11.8 million for the three months ended March 31, 2025, from $12.3 million for the three months ended March 31, 2024. Interest expense on Federal Home Loan Bank advances decreased $567 thousand, or 13.0%, to $3.8 million for the three months ended March 31, 2025, from $4.4 million for the three months ended March 31, 2024, due to a decrease in the average advances of $43.2 million between periods. Interest expense on deposit accounts increased $144 thousand, or 1.9%, to $7.7 million for the three months ended March 31, 2025, from $7.6 million for the three months ended March 31, 2024, due to an increase in the average balance of interest-bearing deposits of $155.7 million, or 9.9%, to $1.72 billion for the three months ended March 31, 2025, from $1.57 billion for the three months ended March 31, 2024, offset, in part, by a decrease in the weighted average rate on interest-bearing deposits to 1.82% for the three months ended March 31, 2025, from 1.95% for the three months ended March 31, 2024.
Net Interest Income. Net interest income increased $1.6 million, or 9.2%, to $19.2 million for the three months ended March 31, 2025, from $17.6 million for the three months ended March 31, 2024, primarily due to an increase in net interest margin to 3.04% for the three months ended March 31, 2025, from 2.83% for the three months ended March 31, 2024 and $60.6 million increase in the average balance of interest-earning assets during the three months ended March 31, 2025. Net interest rate spread increased to 2.62%, for the three months ended March 31, 2025, compared to 2.30% for the three months ended March 31, 2024. The increase in net interest margin and spread was driven by an increase in the weighted average yield on interest earning assets combined with a decrease in the weighted average rate paid on interest-bearing liabilities to 2.30% for the three months ended March 31, 2025, from 2.50% for the three months ended March 31, 2024.
Provision for Credit Losses. Based on management’s analysis of the adequacy of allowance for credit losses, a provision of $17.6 million was recorded for the three months ended March 31, 2025, compared to a provision of $630,000 for the three months ended March 31, 2024. The $17.0 million increase is primarily related to the $16.7 million charge-off related to the land loan. See “—Loan Matter” above.
Non-interest Income. Non-interest income decreased $2.2 million, or 36.8%, to $3.7 million for the three months ended March 31, 2025, from $5.9 million for the three months ended March 31, 2024. The decrease was primarily due to the $1.9 million decrease in net gains and losses on equity and available for sale securities, from a loss of $541 thousand for the three months ended March 31, 2025, compared to a $1.4 million gain for the three months ended March 31, 2024. Non-interest income was also impacted by a $378 thousand decrease in the valuation of mortgage servicing rights for the three months ended March 31, 2025, compared to March 31, 2024, resulting from a decline in market interest rates.
Non-interest Expense. Non-interest expense increased $3.7 million, or 20.6%, to $21.8 million for the three months ended March 31, 2025, from $18.1 million for the three months ended March 31, 2024. Salary and employee benefit expenses increased $3.0 million, or 34.4%, primarily due to a $1.1 million increase in the long-term incentive expense resulting from the termination of the plan and immediate vesting of participants, a $1.1 million increase in short-term incentive, payroll taxes and retirement expenses, and a $689 thousand increase in salaries. Data processing costs increased $1.2 million, or 53.2%, primarily due to a new on-line banking platform, increased account volume and licensing costs, and one-time expenses of $379 thousand related to contract terminations. All other non-interest expenses decreased $397 thousand, or 5.5%, to $6.9 million for the three months ended March 31, 2025, from $7.3 million for the three months ended March 31, 2024, due to lower advertising expense and the sale of the credit card portfolio.
Income Tax Benefit/Expense. Income tax benefit was $4.9 million for the three months ended March 31, 2025, compared to an income tax expense of $1.2 million for the three months ended March 31, 2024. The effective tax rate was 29.8% and 25.5% for the three months ended March 31, 2025, and March 31, 2024, respectively.
Liquidity and Capital Resources
Liquidity describes our ability to meet the financial obligations that arise in the ordinary course of business. Liquidity is primarily needed to meet the borrowing and deposit withdrawal requirements of our customers and to fund current and planned expenditures. Our primary sources of funds are deposits, principal and interest payments on loans and securities, and proceeds from maturities of securities. In addition, we have available credit facilities with the Federal Home Loan Bank of Boston, correspondent banks, and the Federal Reserve Bank of Boston. At March 31, 2025, we had the ability to borrow $684.5 million from the Federal Home Loan Bank of Boston, of which $325.0 million was outstanding. At March 31, 2025, we also had a $500 thousand line of credit with the Federal Home Loan Bank of Boston with no borrowings outstanding. At March 31, 2025, we had $18.0 million of available lines of credit with correspondent banks with no borrowings outstanding under any of them. At March 31, 2025, we also had aggregate available borrowing capacity of $330.0 million through the discount window and the borrower-in-custody program at the Federal Reserve Bank of Boston with no borrowings under either facility.