and external factors such as government actions. In particular, the uncertainty regarding our customers' ability to repay loans could be adversely impacted by COVID-19, temporary business shut-downs, and reduced consumer and business spending.
Noninterest Income
Total noninterest income reflected an increase of $0.2 million, or 3%, for the quarter ended December 31, 2020, as compared to the same period in 2019, and $2.7 million, or 11%, for the year ended December 31, 2020, as compared to the same period in 2019. The fourth quarter 2020 increase in comparison to the same period in 2019 primarily resulted from a loss from the sale of investment securities in the fourth quarter of 2019. In comparing the year ended December 31, 2020, to the same period in 2019, the variances in noninterest income came from a $1.5 million gain from the wrap up of low-income housing tax credit fund investments, a decrease of $0.9 million in low-income housing tax credit fund expenses, an increase of $0.2 million in the valuation gain of restricted equity investments owned by the Company and a $0.6 million increase in the net gain on the sale of debt securities. Fluctuations in BOLI associated with deferred compensation plans contributed $0.2 million to the increase.
Service charges on customer deposit account income declined by $0.3 million, or 10%, to $3.0 million in the fourth quarter of 2020 as compared to the fourth quarter of 2019. This service charge income was $1.0 million lower, or 8%, for the year ended December 31, 2020, as compared to the same period in 2019. These declines are primarily a result of decreases in overdraft income offset by increases in interchange income and other deposit fees, including analysis fees.
Noninterest Expense
Total noninterest expense increased by $2.8 million, or 15%, in the fourth quarter of 2020 relative to the fourth quarter of 2019, and by $5.3 million, or 8%, during the year ended December 31, 2020, as compared to the same period in 2019.
Salaries and Benefits were $2.1 million, or 23%, higher in the fourth quarter of 2020 as compared to the fourth quarter of 2019 and $4.2 million, or 12%, higher for the year ended December 31, 2020, compared to the same period in 2019. The reason for this increase is due to several factors, including merit increases for employees due to annual performance evaluations for 2019, new loan production teams for the northern and southern California markets, and a focus on hiring additional senior-level staff and management. Salary expense deferrals related to loan originations were $0.8 million lower in the fourth quarter of 2020 relative to the fourth quarter of 2019 and $0.4 million lower for the year ended December 31, 2020, compared to the same period in 2019. There have not been any permanent or temporary reductions in employees as a result of COVID-19, although total full-time equivalent employees have declined from 513 at December 31, 2019, to 501 at December 31, 2020.
Occupancy expenses decreased $0.1 million, or 4% for the fourth quarter as compared to the fourth quarter 2019 but remained relatively flat for the respective year-to-date periods. Other noninterest expenses increased $0.8 million, or 12%, for the fourth quarter of 2020 as compared to the fourth quarter in 2019, and $1.1 million, or 5%, for the year ended December 31, 2020, as compared to the same period in 2019. The variance for the fourth quarter of 2020 compared to the same period in 2019 was primarily driven by a $0.2 million increase in deposit services expense, a $0.2 million increase in data processing expense, a $0.6 million increase in professional services, partially offset by a $0.2 million decrease in advertising costs. The $0.6 million change in professional services includes a $0.2 million increase in FDIC assessments due to the Small Bank Assessment credits applied against FDIC deposit insurance costs in the comparative quarter for 2019, and a $0.5 million increase in legal expenses partially offset by a $0.1 million decrease in director's deferred compensation expense, which is linked to the changes in BOLI income. For the year ended December 31, 2020, the $1.1 million increase in other noninterest expense was primarily driven by a $0.4 million increase in loan services costs (half of which was in foreclosed assets), a $0.5 million increase in deposit services costs, a $0.4 million increase in professional services (mostly in legal expenses and FDIC assessments), a $0.3 million increase in sundry losses, partially offset by a $0.7 million decrease in advertising costs
The Company's provision for income taxes was 24.6% of pre-tax income in the fourth quarter of 2020 relative to 23.8% in the fourth quarter of 2019, and 23.8% of pre-tax income for the year ended December 31, 2020, relative to 24.6% for