Matthew Funke
Analyst · Piper Sandler
Sure. Thanks, Greg. We earned $1.09 diluted in the September quarter. That's the first quarter of our fiscal year, and that's an increase of $0.33 from the linked June quarter and it's up $0.24 from the $0.85 diluted that we earned in the September 2019 quarter. Provision for loan losses declined somewhat as we had relatively slow loan growth compared to the year ago quarter, and we did not see much change in the economic outlook following our July 1 CECL adoption.
Noninterest income remained strong, and we saw a reduction in noninterest expense from last quarter's elevated levels that included charges from the Central Federal acquisition and expenses and write-downs related to foreclosed property. Noninterest income continued to show significant increases compared to the year ago period. Gains on secondary market residential loan sales continued to lead the way. The volume of originations is more than 3x the year ago period, and the average gain per loan is a little bit better as well.
We're also generating more in mortgage servicing income as the dollars under servicing continue to increase sharply, and we generated new mortgage servicing rights with our increase in originations. Compared to a year ago, loans under servicing were up by about 30% over $45 million. If you follow components of our noninterest income and expense reporting closely over time, you may notice that we've changed how we account for the debit card to interchange expenses, netting those now against interchange income instead of reporting them separately as noninterest expense.
Compared to the year ago period, debit card income is up on an adjusted basis there, a little more than 10%, which is from a 9% increase in transactions and 17% increase in dollar volume. We still have some concern. The outlook here may be a little tougher as consumers respond to the ongoing pandemic and government stimulus presumably fades. On a similar note, our deposit service charges, including NSF, those are down about 6% year-over-year despite a 12% per item increase in the NSF charge.
Finally, we saw a nonrecurring benefit in our wealth management income as an agreement with broker-dealer to bring services to a new market area produced about $187,000 in onetime income. Noninterest expense was up 9.3% compared to the same quarter a year ago and down 13% compared to the linked quarter when we had $1.1 million in M&A expenses with no material charges in the current or year ago periods. In the current quarter, we had $150,000 we would call nonrecurring, which was compensation related to the same wealth management market expansion. We also recorded a charge for provision for off-balance sheet credit exposure at $226,000 in the current quarter as compared to a recovery of $146,000 in the same quarter a year ago and a charge of $132,000 in the linked quarter.
On an ongoing basis, exclusive of those items, we saw increases this quarter compared to the June quarter in only a couple of categories. One was occupancy, as we've added a couple of additional facilities; and the other was FDIC assessment premiums, as we had an increased assessment base after the Central Federal acquisition and a lower leverage capital ratio as a result of the PPP loan growth.
Meanwhile, we saw declines in foreclosed property expenses, where we took an unusually large hit in the June quarter. Marketing charges, as we expect the current quarter's expenses, were somewhat lower than intended just due to the timing of some of the marketing departments projects, data processing. The timing of some ongoing projects there probably also influenced our spend in a way that should not be repeatable either, and compensation and benefits where we'd return to a more regular level outside of the nonrecurring item we noted earlier compared to the June quarter when bonus accruals had inflated the figure somewhat at our fiscal year-end.
Compared to September a year ago, the September quarter a year ago, significant changes on what we see as a core basis are compensation and occupancy, which are both up a little more than 6% on a core basis; data processing, which is running about 20% higher on a core basis; and deposit insurance, which was 0 at this time last year due to the FDIC's onetime credits. We're up to $200,000 in the current quarter.
Net interest margin in the September quarter was 3.73%, which included about 6 basis points of contribution from fair value discount accretion. A year ago, our margin was 3.81%, and we had about 10 basis points from fair value accretion. We also had some other benefits from loans returning to accrual status are being resolved that were on nonaccrual status and had some deferred interest income on those that we recognized. Also in the linked quarter, when we had a margin of 3.75%, we had about 6 basis points of fair value discount accretion and then another 3 basis points attributable to loans returning to accrual status were being resolved.
On a sequential basis, we see about 2 basis points of improvement in our core margin, but that's somewhat due to the 92-day quarter. And if you adjust for the number of days in the June quarter versus the September quarter, on a core basis, day adjusted, we might see ourselves as down 2 basis points. We're pleased with margin performance to date, but we do expect going forward, it may be hard to match asset repricing with lower cost of funds. Nonperforming balances -- nonperforming loans and asset balances were stable since the prior quarter. NPAs remained at 40 basis points on gross loans -- NPLs remained at 40 basis points on gross loans. NPAs at 44 basis points on total assets. Both showed improvement compared to a year ago as we reduced problem loans from the Gideon acquisition in November 2018.
Net charge-offs, just $162,000, $841,000 over the last 12 months. That's a trailing 12-month figure of about 4 basis points. A year ago, we were running about 2 basis points. But as far as provisioning in the September quarter, down to $774,000, which is 14 basis points for the quarter. But again, looking back over the last 12 months, provisioning has been at almost $6 million or 29 basis points. We did see our effective tax rate tick up a little bit to 21.6% as our higher pretax income, combined with a slight decline in tax-advantaged investments.
Over on the balance sheet, gross loan balances up $18 million, but net loans up just $8.5 million because of the CECL adoption. We had about 8.5 -- I'm sorry, $9.5 million increase in our provision, of which almost $9 million was due to the CECL adoption. Outside of the Central Federal acquisition and PPP loans, we see about a 5.5% core growth rate over the last 12 months. A year ago at this time, outside of M&A, core growth rate was running about 6.5%. So a little bit of a slowdown there. Allowance as a percentage of gross loans at 1.59% at September 30. That's -- would be 1.69% if you excluded PPP loans from the calculation.
Deposits, we did see move down a little bit in the September quarter after a couple of very strong quarters in March and June. Public unit deposits were back down this quarter by $17 million after they were up last quarter by about $13 million. Brokered funding was down a couple of million as well, but really what we're seeing in the numbers this quarter, a little bit of a washout of some of the growth we had over the last couple of quarters, specifically in time deposits as the positive preferences seems to be moving towards just sitting on cash in nonmaturity accounts.
Greg, let me hand it back over to you for some strategic items.