Deposits. Deposits increased $2.9 million, or 0.9%, to $314.9 million at March 31, 2022 from $312.0 million at December 31, 2021. Interest-bearing accounts increased $2.8 million, or 1.1%, to $257.3 million at March 31, 2022 from $254.5 million at December 31, 2021. Noninterest-bearing deposits increased $86,000, or 0.1%, to $57.6 million at March 31, 2022 from $57.5 million at December 31, 2021. The largest increase in interest-bearing deposits was in certificates of deposit which increased $2.0 million, or 2.7%, to $77.8 million at March 31, 2022 from $75.7 million at December 31, 2021 due to an increase in brokered deposits. Savings accounts increased $2.0 million, or 1.8%, to $112.3 million at March 31, 2022 from $110.3 million at December 31, 2021. Additionally, money market accounts increased $593,000, or 1.9%, to $31.9 million at March 31, 2022 from $31.3 million at December 31, 2021. Interest-bearing checking accounts decreased $1.9 million, or 5.0%, to $35.3 million at March 31, 2022 from $37.2 million at December 31, 2021.
Municipal deposits held at Generations Commercial Bank decreased $168,000, or 2.7%, to $6.1 million at March 31, 2022 from $6.3 million at December 31, 2021.
Federal Home Loan Bank Advances. Federal Home Loan Bank advances decreased $1.8 million, or 10.0%, to $16.0 million at March 31, 2022 from $17.8 million at December 31, 2021 as a result of repayments.
Total Equity. Total equity decreased $1.4 million, or 3.1%, to $42.1 million at March 31, 2022 from $43.5 million at December 31, 2021. The decrease was primarily due to an increase in accumulated other comprehensive loss of $1.8 million as a result of a decrease in the fair market value of our investment securities available-for-sale, offset in part by net income of $396,000 during the three months ended March 31, 2022.
Comparison of Operating Results for the Three Months Ended March 31, 2022 and 2021
General. Net income for the three months ended March 31, 2022 was $396,000 as compared to $353,000 for the three months ended March 31, 2021, an increase of $43,000, or 12.2%. The increase was due to a $52,000 increase in net interest income, a $4,000 increase in noninterest income, and a $4,000 decrease in income tax expense, partially offset by a $15,000 increase in provision for loan losses and a $2,000 increase in noninterest expense.
Interest and Dividend Income. Interest and dividend income decreased $72,000, or 2.2%, to $3.2 million for the three months ended March 31, 2022 from $3.3 million for the three months ended March 31, 2021. This decrease was primarily attributable to a $159,000 decrease in interest on loans receivable partially offset by a net increase of $89,000 in interest on investment securities. The average balance of loans decreased $5.6 million, or 2.0%, to $276.8 million for the three months ended March 31, 2022 from $282.4 million for the three months ended March 31, 2021. The average yield on loans decreased 14 basis points to 4.26% for the 2022 period from 4.40% for the 2021 period, reflecting a decrease in higher yielding loans period over period. The average balance of investment securities increased $11.7 million, or 42.6%, to $39.2 million for the three months ended March 31, 2022 from $27.5 million for the three months ended March 31, 2021. The average yield on investment securities increased 11 basis points to 2.80% for the 2022 period from 2.69% for the 2021 period due to purchases of $23.6 million in higher yielding corporate bonds throughout 2021.
Interest Expense. Total interest expense decreased $124,000, or 25.9%, to $354,000 for the three months ended March 31, 2022 from $478,000 for the three months ended March 31, 2021. Interest expense on total interest-bearing deposits decreased $70,000, or 20.2%, to $277,000 for the three months ended March 31, 2022 from $347,000 for the three months ended March 31, 2021. The decrease was primarily attributable to a decrease of $6.1 million, or 7.3%, in the average balance of certificates of deposit to $77.1 million for the three months ended March 31, 2022 from $83.1 million for the three months ended March 31, 2021, in addition to a decrease in the average cost of 35 basis points to 0.62% for the three months ended March 31, 2022 from 0.97% for the same period in 2021. Interest expense on borrowings decreased $54,000, or 41.2%, to $77,000 for the three months ended March 31, 2022 from $131,000 for the three months ended March 31, 2021, due to a 15 basis points decrease in average borrowing costs to 1.86% for the three months ended March 31, 2022 from 2.01% for the three months ended March 31, 2021, as a result of a decrease in the average balance of borrowings of $9.5 million, or 36.5%, to $16.6 million for the three months ended March 31, 2022 from $26.1 million for the three months ended March 31, 2021.