reflecting expense related to the additional branch office that we opened in 2020, and a $26,000 increase in computer services expense, primarily reflecting systems upgrades. These increases were partially offset by a $25,000Β reduction in real estate owned expense and a $10,000 reduction in advertising and marketing expense in the quarter ended JuneΒ 30, 2021 compared to the quarter ended JuneΒ 30, 2020.
Upon consummation of the conversion and stock offering, we expect non-interest expense to increase because of costs associated with operating as a public company, including the expected hiring of additional personnel, and the increased compensation expenses associated with the purchase of shares of common stock by our employee stock ownership plan and the possible implementation of a stock-based benefit plan, if approved by our shareholders.
Income Tax Expense.Β Β Β Income tax expense decreased $27,000 to $62,000 for the threeΒ months ended JuneΒ 30, 2021 compared to $89,000 for the threeΒ months ended JuneΒ 30, 2020. The decrease resulted primarily from lower income before income taxes and increased non-taxable income.
Comparison of Operating Results for the Six Months Ended JuneΒ 30, 2021 and 2020
General.Β Β Β We had net income of $411,000 for the sixΒ months ended JuneΒ 30, 2021 compared to $415,000 for the sixΒ months ended JuneΒ 30, 2020. A reduction in net interest income and an increase in non-interest expenses during the six month period ended JuneΒ 30, 2021 compared to the same period in 2020 were largely offset by a $286,000 reversal to the allowance for loan losses, increased non-interest income and lower income tax expense in the 2021 period.
Interest Income.Β Β Β Total interest income decreased $580,000, or 13.4%, to $3.7Β million for the sixΒ months ended JuneΒ 30, 2021 from $4.3Β million for the sixΒ months ended JuneΒ 30, 2020. This decrease was primarily attributable to a $504,000 decrease in interest income on loans receivable. The decrease in interest income on loans was due to a reduction in the average balance of our loans of $17.5Β million, or 10.9%, to $143.4Β million for the sixΒ months ended JuneΒ 30, 2021 from $160.9Β million for the sixΒ months ended JuneΒ 30, 2020, coupled with a decrease in the average yield on loans of seven basis points to 4.87% for the sixΒ months ended JuneΒ 30, 2021 from 4.94% for the sixΒ months ended JuneΒ 30, 2020.
Interest Expense.Β Β Β Total interest expense decreased $478,000, or 52.9%, to $426,000 for the sixΒ months ended JuneΒ 30, 2021 from $904,000 for the sixΒ months ended JuneΒ 30, 2020. The decrease was primarily due to a $261,000, or 65.7%, reduction in interest expense on FHLB advances to $136,000 in the sixΒ months ended JuneΒ 30, 2021 compared to $397,000 in the sixΒ months ended JuneΒ 30, 2020. As a result of the prepayment of FHLB advances in the fourth quarter of 2020, the average balance of our FHLB advances was $8.9Β million during the sixΒ months ended JuneΒ 30, 2021 compared to $25.0Β million during the sixΒ months ended JuneΒ 30, 2020. Interest expense on deposits was $290,000 during the sixΒ months ended JuneΒ 30, 2021, a $217,000 , or 42.8%, reduction compared to $507,000 of interest expense on deposits in the sixΒ months ended JuneΒ 30, 2020. While the average balance of our total interest-bearing deposits increased by $16.9Β million, or 13.2%, to $145.2Β million in the sixΒ months ended JuneΒ 30, 2021 compared to the sixΒ months ended JuneΒ 30, 2020, the average rate paid on deposits decreased by 39 basis points to 0.40% in the first sixΒ months of 2021 compared to the first sixΒ months of 2020.
Net Interest Income.Β Β Β Net interest income was $3.3Β million for the sixΒ months ended JuneΒ 30, 2021, a decrease of $102,000, or 3.0%, compared to the sixΒ months ended JuneΒ 30, 2020. Our interest rate spread decreased to 2.93% for the sixΒ months ended JuneΒ 30, 2021 from 2.94% for the sixΒ months ended JuneΒ 30, 2020, and our net interest margin decreased to 3.09% for the sixΒ months ended JuneΒ 30, 2021 from 3.26% for the sixΒ months ended JuneΒ 30, 2020. The decreases in interest rate spread and net interest margin primarily reflect the effects of the continuing low interest rate environment.
Provision for Loan Losses.Β Β Β We recorded a $286,000 reversal to the allowance for loan losses for the sixΒ months ended JuneΒ 30, 2021, compared to a $65,000 provision to the allowance for the sixΒ months ended JuneΒ 30, 2020. The reversal during the sixΒ months ended JuneΒ 30, 2021 resulted from our analysis of the factors described in βManagementβs Discussion and Analysis of Financial Condition and Results of OperationsβββCritical Accounting PoliciesβββAllowance for Loan Losses.β
Non-interest Income.Β Β Β Non-interest income increased $230,000, or 64.4%, to $587,000 for the sixΒ months ended JuneΒ 30, 2021 from $357,000 for the sixΒ months ended JuneΒ 30, 2020. The increase was primarily due to a $221,000 increase in other non-interest income, primarily related to an increase in SBA fee income.