and non-performing loans as the allowance for loan credit losses provided 127% coverage of non-performing loans and 1.30% of total loans at December 31, 2024.
Total non-interest income in the fourth quarter of 2024 increased by $1.7 million, or 61.1%, from the prior year's fourth quarter and increased by $1.6 million, or 9.7%, for the full year of 2024 when compared to the full year 2023. The significant improvement in both time periods was partially due to the Company recognizing a $922,000 loss on an investment portfolio repositioning strategy that was executed during the fourth quarter of 2023. There were no investment security gains or losses recognized in 2024. Also, the variances for both time periods reflect the necessary adjustments to the fair market value of an interest rate swap related risk participation agreement as well as the credit valuation adjustment to the market value of the interest rate swap contracts that the Company executed to accommodate the needs of certain borrowers while managing our interest rate risk position. These adjustments reflect the changing national interest rates and improved by $678,000 during the fourth quarter of 2024 and by $866,000 for the full year 2024 compared to both time periods from last year. Wealth management fees improved by $49,000, or 1.7%, for the quarter and by $1.1 million, or 9.3%, for the full year due in part to a strong performance from our Financial Services division that resulted from new business growth. Also, the increase in wealth management fees reflects the improving market conditions particularly for equity securities as major market indexes continued their ascent to record highs in 2024. Overall, the fair market value of wealth management assets totaled $2.6 billion at December 31, 2024 and increased by $37.7 million, or 1.5%, since December 31, 2023. Finally, and favorably impacting other income for the full year of 2024 was the Company recognizing a $250,000 signing bonus that resulted from successful negotiations related to the renewal of an expiring contract with Visa. The favorable items for the full year were partially offset by the Company recognizing a $1.7 million gain in the first quarter of 2023 from AmeriServ Financial Bank selling all 7,859 shares of the Class B common stock of Visa Inc; there was no such gain during 2024.
Total non-interest expense in the fourth quarter of 2024 decreased by $275,000, or 2.3%, when compared to the fourth quarter of 2023 and decreased by $628,000, or 1.3%, for the full year 2024 when compared to the full year 2023. Salaries and employee benefits expense decreased by $1.2 million, or 4.2%, for the full year 2024 due to the net favorable impact of certain items within this broad category. Total salaries cost was down by $847,000, or 4.0%, after the Company incurred additional salary expense in 2023 related to a strategy to consolidate certain executive level positions in the wealth management business. This benefit was successfully recognized in 2024 and was part of our previously announced earnings improvement program that was designed to lower employee costs. Also, total health care cost was $516,000, or 13.4%, lower compared to last year and reflects management’s effective negotiations with our current health care provider that resulted in not having to recognize any premium costs in January 2024. These favorable items were partially offset by an increased level of incentive compensation by $294,000, or 25.1%, which corresponds to the strong performance of our wealth management division. Also, favorably impacting total non-interest expense for the full year was a lower level of professional fees by $533,000, or 10.0%. Other expenses were $488,000, or 10.3%, higher for the full year 2024 when compared to 2023. The Company was required to recognize a settlement charge in connection with its defined benefit pension plan during 2024. The amount of the 2024 charge was $471,000. A settlement charge must be recognized when the total dollar amount of lump sum distributions paid from the pension plan to retired employees exceeds a threshold of expected annual service and interest costs in the current year. It is important to note that since the retired employees have chosen to take the lump sum payments, these individuals are no longer included in the pension plan. Therefore, it is expected that the Company’s normal annual pension expense will continue to be lower in the future. This was evident in 2023 and in 2024 as the Company has recognized a pension credit in both years. FDIC insurance increased by $306,000, or 42.8%, due to an increase in both the asset assessment base as well as the assessment rate. Data processing and IT expenses increased by $385,000, or 8.7%, for the full year of 2024 due to additional expenses related to monitoring our computing and network environment.
Professional fees in both 2024 and 2023 were impacted by litigation and responses to the actions of an activist investor. The Company reached a Cooperation and Settlement Agreement with activist investor Driver Opportunity Partners (Driver), which was described in a Current Report on Form 8-K filed on June 14, 2024. The Company’s activist related costs declined by approximately $137,000 when the fourth quarter of 2024 is compared to the fourth quarter of 2023. For the full year 2024, activist related costs totaled $1.5 million compared to $2.2 million recognized for the full year 2023.
The Company recorded income tax expense of $187,000 in the fourth quarter of 2024 and income tax expense of $798,000, or an effective tax rate of 18.1%, for the full year 2024, which compares to an income tax credit of $1.5 million, in the fourth quarter 2023 and an income tax credit of $1.0 million, for the full year 2023.
The Company had total assets of $1.4 billion, shareholders' equity of $108.6 million, a book value of $6.57 per common share and a tangible book value of $5.75(1) per common share on December 31, 2024. Book value per common share increased by $0.61, or 10.2%, and tangible book value per common share increased by $0.59, or 11.4%, since December 31, 2023, due to a favorable adjustment for both the unrealized loss on available for sale securities and the Company’s defined benefit pension plan and the accretive repurchase of 628,003 shares of common stock from Driver. The Company continued to maintain strong capital ratios that exceed the regulatory defined well capitalized status as of December 31, 2024.