Stefan Chkautovich
Analyst
Thanks, Greg. Going into a little more detail on the income statement. Matt mentioned our margin of 3.44%. Our net interest income for the quarter was $35.4 million, an increase of $6.9 million or 24.2% as compared to the same quarter a year ago. The increase was attributable to a 31.6% increase in the average balance of interest-earning assets compared to the same period a year ago partially offset by a 21 basis point decrease in net interest margin as we work to improve on balance sheet liquidity, leading to a higher cost of funds.
Net interest income from loan discount accretion and deposit amortization resulting from the company's acquisitions contributed 16 basis points to net interest margin in the current quarter. Unchanged from the impact in the fourth quarter of fiscal 2023, the linked quarter and up from a 7 basis point contribution in the same quarter a year ago. Recognition of deferred origination fees on PPP loans was immaterial across these periods. On what we view as core we then see margin down 30 basis points year-over-year and down 16 basis points sequentially. Compared to June, the 92-day quarter in September helped add about 3 basis points of reported margin.
Noninterest income was up a little more than 6% compared to the year ago period, but down 34.6% compared to the linked quarter. We saw a significant reduction in NSF charges as we change policy on how we assess fees for some items. Bank card interchange income was back down to a more normalized level after seasonal benefits in the quarter. So nonrecurring charges related to lending offset some application fee income in the quarter as well. We'll show a bounce back from those, but the NSF charges will be a headwind. Mortgage banking activity also remains low.
Noninterest expense was up 40.1% as compared to the year ago period, but down 4.7% from the linked quarter as nonrecurring merger charges dropped to $134,000 as compared to $829,000 in the linked quarter. The year-ago quarter also included a modest amount of M&A charges at $169,000. There wasn't a lot in the quarter that we consider unusual otherwise. We'll see an uptick in compensation beginning in January, and we will have a little bit of occupancy cost increase in the coming quarters as we relocate some personnel into better position offices in our newer metro markets.
Our provision for credit losses was $900,000 in the quarter ended September 30, 2023, as compared to a PCL of $5.1 million in the same period of the prior fiscal year. In the linked June quarter, it was $795,000. The PCL in the year ago period was impacted by substantial loan growth during that quarter as well as a modest decline in the modeled economic outlook. The company's assessment of the economic outlook at September 30, 2023, was little change as compared to the assessment of the June 30, 2023. Qualitative adjustments in our ACL model were slightly decreased based on a reduced pace of loan growth, but we did increase adjustments relative to a small group of classified hotel loans.
Net charge-offs remained at a low level during the quarter, with our trailing 12-month net charge-offs running at 3 basis points. The allowance for credit losses at September 30, 2023, totaled $49.1 million, representing 1.33% of gross loans and 856% of nonperforming loans as compared to an ACL of $47.8 million, which represented 1.32% of gross loans and 625% of nonperforming loans in our June 30, 2023, fiscal year-end. Our earnings release included a more detailed table of deposit trends over the last year. On a quarterly basis for total deposits, exclusive of brokered funds, we had solid growth.
This was primarily due to well received rate specials ran in the quarter for savings in CDs. We're also pleased to see more stable noninterest-bearing deposit levels. We use core growth and brokered funding to meet seasonal loan demand while reducing reliance on FHLB funding during this quarter. Matt noted earlier, the elimination of our overnight position and reduction from a year ago in FHLB borrowings. It's especially notable that we did so in the September quarter as we currently are at our peak loan demand and trough deposits funding position on the calendar.
Going into the fourth calendar quarter, we are entering a period which we see further deposit growth from ag, the general business cycles, and public funds, which is based on the tax cycle in our areas. While we want to remain cautious about the liquidity outlook in the current quarter, if normal trends hold, we may look at further reductions in non-core funding, such as broker deposits. Looking into full year fiscal 2024, we anticipate continued solid levels of profitability, though the lag effect of the Fed's rate increases will still pressure margin over the next quarter or so. We're optimistic if the Fed is done with significant rate hikes we saw over the prior period that we should see a trough over the next 2 quarters. Greg, any closing thoughts?