Jack Plants
Analyst · Piper Sandler. Your line is now open
Thank you, Marty. Good morning, everyone. I'll begin today by providing commentary on key areas of performance in the fourth quarter with comparisons to the third quarter of 2021.
Net interest income was $40.9 million, $2.6 million higher than the linked quarter as a result of our deployment of excess liquidity into investment securities, growth in loans, higher revenue in connection with PPP loan forgiveness and a lower overall cost of funds. Approximately $64 million and $56 million of PPP loans were forgiven in the fourth and third quarters of 2021, respectively, with a related fee accretion of $2.6 million in the fourth quarter as compared to $1 million in the third quarter. Nearly all of 2020 vintage loans have been forgiven or repaid and approximately 53% of the 2021 vintage was forgiven in the fourth quarter.
NIM on a fully taxable equivalent or FTE basis, for the fourth quarter of 2021 was 315 basis points, up 8 basis points from the linked quarter and up 2 basis points from the fourth quarter of 2020. Excluding the impact of PPP interest and fees and excess liquidity from each quarter, NIM decreased 2 basis points from the prior quarter, primarily due to a 3 basis point decrease in earning asset yields and a 1 basis point decline in the cost of interest-bearing liabilities. The impact of income from excess liquidity negatively impacted NIM by 14 basis points in the fourth quarter of 2021 compared to a negative 9 basis point impact in the third quarter of 2021.
Full year NIM was 305 basis points, excluding the impact of PPP loans, in line with guidance we provided since July of 2021. We continue to manage through the excess liquidity on our balance sheet. However, PPP forgiveness added to the liquidity profile once again this quarter, approximately $60 million when comparing average balances for the linked quarters.
The seasonality of public deposits, which are higher at the onset of the fourth quarter, drove an increase in average public deposits of approximately $200 million as compared to the third quarter. These sources of liquidity resulted in incremental investment securities in the quarter, with an average balance of approximately $185 million higher than the linked quarter.
Our investment securities purchases have been focused on mortgage-backed securities with low to moderate duration that provide ongoing cash flow, which we have prudently utilized with a low-risk liquidity management tool generates incremental yield over Federal Reserve balances.
Cash flow from the portfolio will allow for reinvestment into loans or additional investment securities when rates begin to rise. Our quarterly net interest margin did benefit from a lower cost of funds, down 2 basis points from the third quarter to 22 basis points. Noninterest income of $11.7 million was relatively flat as compared to the third quarter, down $409,000.
Revenue categories with the largest changes quarter-over-quarter were insurance income, which was down $521,000 as a result of the seasonal timing of commercial policy renewals.
Income from limited partnerships, which was down $400,000 based on the activity and performance of underlying investments and income from derivative instruments, which was up $658,000 based on the number and value of transactions and the impact of changes in fair market value.
Noninterest expense was $29.9 million, an increase of $728,000 from the linked quarter. This increase was primarily driven by a $313,000 increase in salaries and employee benefits, which was largely the result of nonrecurring severance expense related to the redesign of the bank's retail branch structure. In computer and data processing which was $373,000 higher as a result of investments in technology, which include digital banking initiatives and our new comprehensive customer relationship management solution.
Income tax expense was $4.2 million in the quarter, representing an effective tax rate of 17.7%. Effective tax rates in 2021 have been higher than the previous year due to the higher level of pretax earnings in 2021 in comparison to 2020.
We remain comfortable with our capital position; given that much of the asset growth we've experienced in the past year was the result of the lower risk assets, primarily excess liquidity. Our regulatory capital ratios remain comfortably above well-capitalized minimums, and our TCE ratio increased 34 basis points in the quarter from 7.25% to 7.59%.
I'd now like to spend the next few minutes providing our outlook for 2022 in key areas. We expect mid to high single-digit growth in our total loan portfolio, with commercial loan categories driving this growth. Guidance assumes that forgiveness or repayment of the remaining $55 million of PPP loans during the first 3 quarters.
We plan for low single-digit growth in nonpublic deposits. We are focused on attracting new consumer and commercial deposit accounts and expect the positive impact of these new accounts to be partially offset by an expected decline in the average balance per account as an outcome of the most recent interest rate forecast. We are projecting reciprocal and public deposits to be relatively flat.
Overall, we expect full year NIM of 305 to 310 basis points, excluding the impact of PPP fee accretion. Although economists are predicting an increase in the Fed Funds rate during 2022, we are guiding on NIM using a spot rate forecast.
We expect to continue carrying higher balances in investment securities due to carryover from our 2021 excess liquidity position, which will put pressure on NIM in early 2022. There will continue to be noise in NIM relative to PPP forgiveness, although muted relative to 2021. We are guiding on NIM, excluding the impact of PPP activity as we did last year.
As a reminder, our NIM fluctuates from quarter-to-quarter due to the seasonality of public deposits and its impact on both our earning asset and funding mix. In quarters where our average public deposit balances are higher due to seasonal inflows, the second and fourth quarters, our earning asset yields are lower given the short-term duration of the deposits and the limited opportunities to invest the funds. While our NIM guidance was developed utilizing a flat rate forecast, our balance sheet is well positioned for a rising rate environment, with 34% of our loan portfolio, excluding PPP is indexed to variable interest rates.
We are projecting low single-digit growth in noninterest income, excluding gains on investment securities and noninterest income categories that are difficult to predict, such as limited partnership income. We also expect a decline in mortgage banking revenue as a result of lower anticipated refinance activity and tightening of gain on sale spreads due to the interest rate environment. We are targeting an increase in the mid-single digit range for noninterest expense, which is expected to range from $31 million to $32 million per quarter.
Our spend in 2022 includes investments in strategic initiatives, including further enhancements to our new customer relationship management solution, digital banking and Banking as a Service. We expect these investments to begin producing incremental revenue in 2022. However, full benefits are likely to be realized over the coming years.
By way of reference, we have a demonstrated record of making short-term investments that support longer-term efficiency benefits. For example, our ESP initiatives executed in the third quarter of 2020 resulted in a short-term increase in our efficiency ratio, yet we realized an earn back on the investments inside of 1 year, and the long-term benefits contributed to our efficiency ratio performance in 2021.
We expect an efficiency ratio within a range of 59% to 60% for the year, which is negatively impacted by upfront costs associated with our aforementioned investments and strategic initiatives.
We expect the 2022 effective tax rate to fall within a range of 19% to 20%, including the impact of the amortization of tax credit investments placed in service in recent years. We will continue to evaluate tax credit opportunities, and our effective tax rate would be positively impacted by taking advantage of further investment opportunities. We expect net charge-offs to be within our annual historical range of approximately 35 to 40 basis points.
Our overall focus includes executing on strategic initiatives that will improve profitability and operating leverage over time. We believe that achieving results in line with the guidance provided will drive these outcomes.
That concludes my prepared remarks. I'll now return the call back to Marty.