margin on a tax-equivalent basis(1) decreased to 2.82% and 2.98%, respectively, for the six months ended June 30, 2023 from 2.90% and 3.06%, respectively, for the six-month period ended June 30, 2022.
Provision for Credit Losses. The amortizing cost of non-performing loans increased to $913,000, at June 30, 2023 compared to $732,000 at December 31, 2022, or 0.6% and 0.5% of total loans, respectively. At June 30, 2023, $577,000 or 63.2% of non-performing loans were current on their loan payments.
On January 1, 2023, the Company implemented ASC 326, and as a result, the opening balances for the allowance for credit losses and reserve for unfunded loan commitments increased by $557,000 and $73,000, respectively, as of January 1, 2023. The adoption entries reduced the Company’s retained earnings on a tax-effected basis of $481,000, with no impact on earnings.
Based on an analysis of the factors described in "Summary of Significant Accounting Policies – Allowance for Credit Losses,” the Company recorded a net recapture of credit losses of $16,000 for the three months ended June 30, 2023 and a net provision of $36,000 for the six months ended June 30, 2023. The Company recorded a provision for credit losses of $50,000 for the three and six months ended June 30, 2022.
Noninterest Income. Noninterest income decreased $56,000, or 15.4%, for the quarter ended June 30, 2023 as compared to the same period in 2022, due primarily to a reduction in brokered loan fees of $39,000, partially offset by an increase of $15,000 in ATM and debit card fee income and a $7,000 net gain on the disposal of foreclosed real estate. A gain on life insurance of $36,000 was recorded during the quarter ended June 30, 2022 whereas no gain was recorded during the quarter ended June 30, 2023.
Noninterest income decreased $97,000, or 14.9%, for the six months ended June 30, 2023 as compared to the same period in 2022, due primarily to a reduction in brokered loan fees of $67,000 and a $27,000 net loss on the sale of available-for-sale investment securities, partially offset by increases of $18,000 in ATM and debit card fee income and $9,000 in deposit account service charges and a $7,000 net gain on the disposal of foreclosed real estate. A gain on life insurance of $36,000 was recorded during the six months ended June 30, 2022 whereas no gain was recorded during the six months ended June 30, 2023.
Noninterest Expense. Noninterest expense increased $88,000, or 5.0%, for the quarter ended June 30, 2023 as compared to the same period in 2022. The increase was due primarily to increases in data processing expenses of $103,000, stockholders’ meeting expense of $61,000, occupancy and equipment expenses of $15,000, deposit insurance premiums of $13,000 and other expenses of $25,000, partially offset by lower compensation and benefits expenses of $50,000, marketing and business development expenses of $35,000 and professional fees of $29,000.
Noninterest expense increased $320,000, or 9.8%, for the six months ended June 30, 2023 as compared to the same period in 2022. The increase was due primarily to increases in data processing expenses of $196,000, stockholders’ meeting expense of $61,000, occupancy and equipment expenses of $38,000, deposit insurance premiums of $17,000 and other expenses of $45,000, partially offset by lower marketing and business development expenses of $31,000 and supervisory examination expenses of $12,000.
Income Tax Expense. The Company recorded an income tax expense of $9,000 for the quarter ended June 30, 2023, compared to an income tax expense of $24,000 for the same period in 2022. For the six months ended June 30, 2023, the Company recorded an income tax benefit of $28,000 compared to an income tax expense of $58,000 for the six months ended June 30, 2022. The income tax benefit is primarily due to an increase in tax-exempt income in proportion to income before income taxes.
Liquidity and Capital Resources
Liquidity management is both a daily and longer-term function of management. Excess liquidity is generally invested in short-term investments, such as overnight deposits and federal funds. On a longer-term basis, we maintain a strategy of investing in various lending products and investment securities, including municipal and mortgage-backed