Interest Bearing Time Deposits. Interest-bearing time deposits decreased by $3.4 million, or 69.9%, during the year ended June 30, 2022, to $1.5 million at June 30, 2022 from $4.9 million at June 30, 2021. Proceeds from maturing certificates of deposit during the year ended June 30, 2022 were used to fund the originations of new loans.
Investment Securities. Investment securities decreased $4.0 million, or 14.1%, to $24.5 million at June 30, 2022 from $28.5 million at June 30, 2021. Aggregate securities purchases of $12.7 million during the year ended June 30, 2022, were more than offset by sales of $9.7 million and calls, maturities and repayments of $4.0 million as well as a $2.6 million decline in fair value of the securities year-to-year.
During the year ended June 30, 2022, management elected to sell the Bank’s investment in U.S. Government agency securities. The securities were sold as management implemented a strategy to replace lower-yielding securities with higher-yielding securities, and subsequent to the sale, management made purchases of new U.S. Government agency securities and mortgage-backed securities.
The $2.6 million decline in the fair value of the investment securities was primarily attributable to the increases in interest rates in the economy. As the interest rates increased, the fair value of the securities declined. The unrealized losses are recorded to equity, net of tax, as management has determined that there are no credit quality concerns with the issuers of the securities and there is no intent to sell the securities and, as a result, the fair value is expected to recover as the securities approach their maturity dates.
The yield on our investment securities increased to 1.29% for the year ended June 30, 2022 from 1.14% for the year ended June 30, 2021 and at June 30, 2022 the investment securities portfolio had a yield of 1.78%.
Net Loans. Net loans increased by $3.3 million, or 4.5%, to $77.7 million at June 30, 2022 from $74.4 million at June 30, 2021. During the year ended June 30, 2022, loan originations totaled $23.0 million, comprised of $19.1 million of loans secured by one- to four-family residential real estate, $1.7 secured by commercial real estate, $1.0 secured by agricultural real estate, along with $60,000 of commercial and industrial loans, $731,000 of multifamily loans and $364,000 of consumer loans.
During the year ended June 30, 2022, residential real estate loans increased $4.3 million, or 7.0%, to $65.6 million at June 30, 2022, construction loans increased $1.1 million, or 23.2%, to $6.0 million at June 30, 2022, multifamily loans increased $719,000 and agricultural real estate loans increased $475,000, or 15.9%, to a total of $3.5 million at June 30, 2022, while commercial real estate loans decreased $1.4 million, or 21.6%, to $5.1 million at June 30, 2022.
Increases in loan balances reflect our strategy to grow our loan portfolio, continuing to focus primarily on owner-occupied one-to-four family residential real estate loans while increasing our emphasis on commercial loans. The Bank is currently undertaking a search for a new President and Chief Executive Officer. Once the new Chief Executive Officer is appointed, the current President and Chief Executive Officer is expected to become the Chief Operating Officer and Chief Risk Officer, which will allow him to better leverage his competency in commercial lending.
Such growth has been achieved amid strong competition for one- to four-family residential mortgage loans in our market area. Management intends to continue this activity in future periods.
Deposits. Deposits increased by $9.1 million, or 9.0%, to $110.0 million at June 30, 2022 from $100.9 million at June 30, 2021. Core deposits increased $12.4 million, or 19.8%, to $74.8 million at June 30, 2022 from $62.4 million at June 30, 2021. Certificates of deposit decreased $3.3 million, or 8.5%, to $35.2 million at June 30, 2022 from $38.5 million at June 30, 2021.
During the year ended June 30, 2022, management continued its strategy of pursuing growth in demand accounts and other lower cost core deposits, in part by enhancing products and services offered, including mobile banking. Management intends to continue its efforts to increase core deposits, with an emphasis on growth in consumer and business demand deposits.