The net interest margin was 4.16% compared to 3.95% for first quarter 2018. The tax equivalency effect on the margin dropped to 0.02% from 0.03% a result of the reduction in tax exempt loans and securities in 2019.
Noninterest income increased by $79 thousand, or 7%, in the first quarter of 2019 compared to 2018. The increase reflects growth in debit card fee income, service charges on deposit accounts, and trust and brokerage income.
Noninterest expense amounted to $4.8 million during the quarter, an increase of $254 thousand, or 6%, from first quarter 2018. Salary and employee benefit costs increased $205 thousand, or 8%, compared to the prior year quarter, as a result of higher wage and 401k retirement expenses. Professional and director’s fees increased by $28 thousand, or 9%, reflecting third party costs of the company’s commitment to improve its network infrastructure. Debit card expense increased by $11 thousand, or 9%, on a quarter over quarter basis primarily on expanded usage. The Company’s first quarter efficiency ratio was 57.7% as compared to 59.5% for the same quarter in the prior year.
Federal income tax provision was a $619 thousand expense in first quarter 2019, as compared to $509 thousand tax expense provision for the same quarter in 2018. The effective tax rate increased from 19% to 20% a result of decreased nontaxable income in 2019.
Average total assets during the quarter amounted to $730 million, an increase of $30 million, or 4%, above the same quarter of the prior year. Average loan balances of $550 million increased $23 million, or 4%, from the prior year first quarter while average securities balances of $110 million decreased $14 million, or 11%, as compared to first quarter 2018.
Average commercial loan balances for the quarter, including commercial real estate, increased $9 million, or 3%, from prior year levels. Average residential mortgage balances increased $9 million, or 8%, over the prior year’s quarter. Average consumer credit balances increased $3 million, or 18%, versus the same quarter of the prior year.
Nonperforming assets decreased $1.3 million from March 31, 2018 to $3.3 million, or 0.60%, of total loans plus other real estate at March 31, 2019. The decrease in nonperforming assets is the result of various commercial loans exiting through liquidation. At March 31, 2019, approximately $1.0 million of thenon-performing loan total is guaranteed by either USDA or the SBA. Delinquent loan balances as of March 31, 2019 declined to 0.70% of total loans as compared to 1.05% at March 31, 2018.
Net loan recoveries recognized during first quarter 2019 were $95 thousand, or 0.07% annualized, compared to first quarter 2018 net loan losses of $295 thousand. The allowance for loan losses amounted to 1.15% of total loans at March 31, 2019 as compared to 1.06% at March 31, 2018.