Thank you, Rod. Despite a very challenging environment in 2020, we delivered strong top and bottom-line growth, returned significant cash to shareholders, closed the Life transaction, and we entered this year with robust pipelines, setting ourselves up for a terrific 2021. I'm very proud of all that our team accomplished and look forward to continued success in 2021 and beyond.
Turning to Slide 7, we delivered normalized after tax adjusted operating earnings of $1.44 per share in the fourth quarter of 2020. This excludes three items.
First, $0.49 of prepayment and alternative income above our long-term expectations.
Third quarter equity markets supported alternative results and helped drive full year performance back above our 9% long-term expectation.
Second, $0.18 of favorable DAC/VOBA and other intangibles unlocking. And third, $0.21 of stranded costs associated with Individual Life business and other closed blocks.
With the closing of the Life Transaction stranded costs net of as ASA TSA revenues will be included in normalized adjusted operating earnings going forward. On a full year basis normalized after tax adjusted operating earnings grew 14% to $4.81 in 2020, largely reflecting growth in investment management and employee benefit earnings and lower average share count. On a reported basis, adjusted operating earnings were $1.90 per share for the quarter, and $3.22 for the full year. GAAP net income was $341 million for the fourth quarter of 2020. This includes results from our Individual Life business for a final quarter. In fourth quarter, Individual Life COVID-related losses were in line with our expectations, which drove unfavorable mortality.
Moving to Slide 8, Retirement delivered $228 million of adjusted operating earnings, excluding unlocking in the fourth quarter, contributing to full year earnings of $592 million. Return on capital was 13% in 2020, in line with 2019. Fourth quarter adjusted operating earnings included alternative income that was $64 million above our long-term expectations. Full year results reflect higher fee income and investment spread than 2019 but was more than offset by higher administrative expenses. 2020 full-service fee-based revenue was higher year-over-year, driven by strong net inflows and favorable equity markets. Full year record keeping and other fee base revenues were in line with prior year. Increased fees from significantly higher record keeping assets and record stable value inflows were mostly offset by a decline in suit fee revenues within our retail wealth management business due to very low short end rates.
We also waive certain fees to help participants navigate COVID-19 during the year. Full year investment spread increased year-over-year as higher transfers into fixed account options with lower crediting rates, helped to alleviate some of the spread compression associated with lower rates.
Our full year administrative expenses were higher year-over-year. Expenses in the year were generated by strong business growth and included investments in our business to better capitalize on workplace opportunities.
We also incurred expenses onboarding a large number of participants throughout the year, and there were some notable items, including a legal accrual and an expense accrual true-up.
Turning to deposits and flows, 2020 full service recurring deposits grew to over $11 billion almost 7% higher year-over-year.
For the year, Retirement generated Full Service net inflows of $1.6 billion, largely reflecting strength in corporate markets.
As anticipated, we experienced fourth quarter outflows of $2.3 billion, largely due to the departure of a large case tax exempt client. We had a record year end stable value flows. Net flow momentum continued into the fourth quarter, adding $761 million in net inflows to drive the full year total to $4.3 billion. Record keeping flows exceeded $24 billion in the year, including $1.9 billion of outflows in the fourth quarter, driven by known departures from clients that had given notification earlier in the year. This increased record keeping participants 15% to $3.3 million. In 2020, we added 30 new government plans and nearly 350,000 participants. With those wins, Voya is now the number one retirement plan provider in the government space. We were excited by our commercial momentum going into 2021. 2020 was a year which illuminated new ways to efficiently win business across all the markets we operate in.
We have a robust pipeline and continue to make the right investments to accelerate our workplace strategy to drive long-term success. On Slide 9, Investment Management delivered a record fourth quarter with $90 million of adjusted operating earnings. This contributed to full year earnings of $197 million exceeding our 2019 results primarily reflecting strong fee growth from higher institutional AUM year-over-year. We realized exceptionally strong performance fees in the fourth quarter related to our mortgage investment fund. This was driven by strong full year 2020 investment performance.
Our full year 2020 adjusted operating margin, including investment capital was 28%, an increase from 26.6% in 2019.
Turning to flows. In the fourth quarter, we experienced $2.4 billion in net outflows, primarily driven by known redemptions, including a large client withdrawal in the affiliated channel and year end profit taking in funds with strong fixed income performance. We saw strength in our insurance channel. We issued two CLOs including a Euro denominated CLO, and we closed on several private mandates. Despite the fourth quarter outflows, we still delivered full year 2020 net flows of $8.4 billion, representing organic growth of 5% exceeding the high end of our 2% to 4% target range.
Our fixed income performance remains strong. 90% of our fixed income funds outperform the benchmark on a three-year basis and more than 96% did so on a five and 10-year basis.
Looking ahead, while we see a few redemptions in the first quarter, we are starting 2021 with the strongest pipeline of unfunded wins ever, and see opportunities across multiple strategies. With a track record of five consecutive years of positive flows, we are confident we can achieve our 2% to 4% organic growth target in 2021.
Turning to Slide 10. Employee benefits delivered $50 million of adjusted operating earnings in the fourth quarter. Full year adjusted operating earnings were $204 million slightly higher than the 2019 results of $199 million, despite approximately $30 million in COVID-related headwinds. The trailing 12-month return on capital remained over 30%. Full year annualized in-force premiums grew nearly 7% year-over-year. Total aggregate loss ratio for the year was 70% at the low end of our targeted range. Group Life loss ratios were elevated as they include COVID-related claims. These claims were approximately $10 million in the fourth quarter, which is consistent with our expectation of $1 million to $2 million per 10,000 incremental deaths.
We expect first quarter 2021 Group Life claims to be elevated relative to fourth quarter, due to typical seasonality and continued COVID claims.
We are encouraged by the outcomes seen so far in our year end renewal season.
Looking further ahead, we remain confident in our ability to continue to drive strong top line growth while maintaining pricing discipline, leveraging longstanding distribution partnerships and differentiated service capabilities to accelerate our workplace strategy.
Turning to Slide 11.
Our deferred tax asset remains a key source of value. The net present value of the deferred tax asset is $1.05 billion as of December 31 or over $8 per share. The change in NPV reflects our utilization over the year. It's enacted by the new administration a higher corporate tax rate would help increase the value of our DTA. Under current tax rates, we now expect to utilize approximately 40% to 50% of our DTA within the next five years. And we continue to expect to pay essentially no net cash taxes for the next five to eight years. And the DTA contributes to our 90% plus free cash flow generation. On Slide 12, we provide items to consider for the first quarter of 2021.
First quarter of 2021 will benefit from lower incentive compensation expense in corporate. Fourth quarter incentive compensation was primarily related to strong fourth quarter alternatives and performance fees. The latter of which is not expected to recur in first quarter. Offsetting first quarter items include Investment Management performance fees, net of variable compensation are not expected to recur in the first quarter. Corporate segment results will include net realized stranded costs, now that the Life Transaction has closed. Higher seasonal Group Life loss ratios and employee benefits combined with elevated claims driven by COVID.
We continue to expect our sensitivity range of $1 million to $2 million for 10,000 U.S. COVID-related deaths to hold. And other seasonal items such as higher preferred stock dividends and administrative expenses related primarily to payroll taxes. Well, we have provided some items to consider. There will of course be other factors that affect first quarter results, including changes in our average share count, market impacts, business growth and the potential for additional COVID-19 impacts. On Slide 13, we are re-introducing guidance items for 2021.
Now that we have better line of sight on longer term results. The results include impacts from both the Life Transaction and the recently announced financial planning channel transaction.
We expect 2021 earnings per share to grow 8% to 12% supported by growth across all businesses.
We expect retirement to grow earnings at a commensurate 8% to 12%. Within Investment Management, we will overcome the impact from the light transaction to have consistent earnings in 2021. That said, adjusting for the exceptional performance fees in fourth quarter, we expect growth of 8% to 12%. In employee benefits. Earnings are projected to increase modestly in part due to the continuing impact of COVID claims, but also due to an expectation that the favorable loss ratios in 2020 will moderate from the low end to the middle of our 70% to 73% range. Also included on the slide are the assumptions underlying these growth expectations and earning sensitivities to macroeconomic factors and the pandemic. We believe the earnings growth expectations shown here present a compelling investment opportunity and demonstrate continued strong performance.
Turning to Slide 14.
Our diversified investment portfolio continues to perform well in the current environment.
Our estimated impact to excess capital in each stress case are unchanged.
We have incurred a cumulative impact of approximately $100 million from a combination of net negative ratings migration and credit impairments.
We expect the prospective impact through year end 2021 to be roughly $200 million and $350 million in cases one and two respectively. And this is before any active management.
Importantly, we view these potential impact as manageable, given our excess capital and continued free cash flow generation.
We continue to spotlight certain investments in our portfolio, including our commercial mortgage loans in the appendix.
As of December 31, there are no outstanding loans in forbearance. Overall, we remain comfortable with the quality of our commercial mortgage portfolio, which is more than 87% CM one rated and has a weighted average loan-to-value ratio of 46%. Slide 15. Giving pro forma effect to the Life Transaction, our estimated RBC ratio is 498% above our target of 400% and excess capital is $1.8 billion.
As Rod mentioned, we expect the sale of the independent financial planning channel to provide over $300 million of deployable proceeds when it closes later this year. This amount is not included in the pro forma amount I just mentioned. We resumed share repurchases in the fourth quarter via an accelerated share repurchase agreement for $150 million, of which $120 million was executed in the quarter. The remaining $30 million of repurchases was completed last month. We deployed over $500 million on share buybacks in 2020, despite uncertainty around COVID-19 and its impacts.
Going forward, we expect to deploy our $1 billion authorization ratably over the course of 2021, while balancing investments we are making in the business to accelerate long-term growth.
Our financial leverage is roughly 30% in line with our target. This is pro forma for the estimated gain on sale realized on the re-insurance portion of the Life Transaction.
This quarter we are also introducing a new financial leverage ratio that more closely aligns with the assessments of the rating agencies. The new leverage ratio eliminates equity credit for hybrids and preferreds and now includes AOCI and non-controlling interest.
Going forward, our target will be to manage this new financial leverage ratio to be below 30%.
We continue to expect $600 million to $800 million of debt extinguishment this year, which we anticipate will occur in the second half of the year.
Finally, we increased our quarterly common stock dividend by 10% to $0.165 per share. This affirms our confidence in the stability of our cash flows and over 90% free cash flow conversion. The higher dividend keeps our yield at over 1% even if our share price were to increase meaningfully from current levels. In summary, we are pleased to a close the Life Transaction, leaving behind significant interest rate and tail liabilities with it. We believe our strong workplace and institutional franchises have proved resilient in challenging times and are poised for strong growth in 2021 and for long-term success. We generate high free cash flow and have a significant excess capital position.
We will continue to act as good stewards of capital as we look to deploy proceeds in the best interest of shareholders. With that, I will turn the call back to the operator so that we can take your questions.