Mike Wagnes
Senior Vice President and Chief Financial Officer at Allegion
Thanks, John, and good morning, everyone. Thank you for joining today's call. Please go to Slide number 7. This slide reflects our earnings per share reconciliation for the fourth quarter. For the fourth quarter of 2021, reported earnings per share was $1.26, adjusting down $0.15 per share for a non-cash gain on an investment remeasurement, offset by charges related to restructuring, M&A and debt refinancing costs, the 2021 adjusted earnings per share was $1.11.
Operational results were very strong in the current quarter, adding $0.48 per share, reflecting 43.2% growth. This was driven by double-digit organic growth, favorable operating leverage, and positive business mix, which more than offset currency headwinds. Access Technologies delivered $0.08 to earnings per share as operational results of $0.12 per share were offset by $0.04 of intangible amortization expense. We are pleased with the performance of Access Technologies in the first six months, as the business results were in-line with our expectations.
A lower year-over-year tax rate increased earnings by $0.04 and favorable share count added another $0.03. Interest expense reduced earnings per share by $0.10, primarily driven by increased debt to finance the acquisition of Access Technologies. We continue to invest in the long-term strategy of the business, resulting in a $0.04 earnings per share headwind. This resulted in the fourth quarter 2022 adjusted earnings per share of $1.60, an increase of $0.49 or 44.1% compared to the prior year.
Lastly, we have a $0.07 per share reduction from adjusted EPS to arrive at reported EPS. This reduction is primarily attributed to M&A and additional non-cash purchase accounting items related to the acquisition of Access Technologies. After giving effect to these items, you arrive at a fourth quarter 2022 reported earnings per share of $1.53. Of note, starting in 2023, we are making a change to our adjusted operating income, earnings and EPS to exclude amortization expense related to acquired intangible assets. This change is based on the noncash nature of those expenses and supports our growth strategy.
Please go to Slide numbr 8. This slide depicts our components of our revenue growth for the fourth quarter as well as the full year. As indicated, we experienced 11.4% organic revenue growth in the fourth quarter, driven by price across all segments. Volume growth in the Americas mostly offset declines in the international region. Net acquisitions and divestitures delivered 13.4% growth driven by Access Technologies.
Currency pressures continued to be a headwind, primarily impacting our Allegion International segment, bringing the total reported growth to 21.5% in the quarter. For the full year, you could see the total revenue was up 14.1% with organic revenue growth of 10.7%. Both segments grew organically for the year, led by Allegion Americas, which grew 14.4%.
Please go to Slide number 9. Fourth quarter revenues for the Americas segment was $683.9 million, up 36.9% on a reported basis and up 18% organically. Price realization remains strong in both our residential and non-residential businesses offsetting ongoing inflationary pressure. In non-residential, we continue to see strong volume growth that when coupled with price, drove organic growth in the mid-20s percent.
Residential was up low single digits with favorable price being offset by lower volumes. Electronics revenue was up approximately 50% for the quarter as we compare against supply chain headwinds in the prior year. Full-year electronics growth was approximately 20%, as our engineering and supply chain actions are yielding good results.
We are pleased with the ongoing Access Technologies integration and results. This business contributing nearly 20% to the Americas reported growth number. Americas adjusted operating income of $164.4 million increased 55.8% versus the prior year period, while adjusted operating margins and adjusted EBITDA margins for the quarter were up 290 and 320 basis points, respectively. Excluding Access Technologies, the business drove a 530 basis point improvement in operating margins versus the prior year. Pricing productivity in excess of inflation along with volume leverage on Americas non-residential business and positive mix contributed to the margin improvement.
Please go to Slide number 10. Fourth quarter revenue for our Allegion International segment was $177.6 million, down 15.3% on a reported basis and down 4.3% organically. In the quarter, strong price realization was more than offset by lower volumes attributed to softening end markets. Notably, the demand for our electronic and software solutions remain stable.
Currency headwinds persisted this quarter and reduced reported revenues by 9.9%. International adjusted operating income of $23.3 million decreased 20.7% versus the prior year period. Compared to 2021, adjusted operating margins and adjusted EBITDA margins decreased 90 basis points each. The margin decline was driven by reduced volumes and FX pressure, which more than offset the favorable impact of the combination of price, productivity and inflation.
Please go to Slide number 11. Available cash flow for 2022 came in at $395.5 million, down $47.7 million versus the prior year. This reduction is driven by higher capital expenditures as well as increases in working capital. Given the inconsistencies in the supply chain and component availability, we increased inventory to protect our customers in 2022. When combined with the added working capital of the Access Technologies acquisition, there is an increase in working capital as a percent of revenue. We expect this to improve in 2023 as supply chain disruptions moderate.
Capital expenditures as a percent of revenue also increased as we made strategic investments to drive future growth and improve supply chain resiliency like our new production facility in Central Mexico mentioned earlier. The last chart on the slide shows our net leverage. The net debt-to-EBITDA ratio increased from 1.7x in 2021 to 3.3x following the Access Technologies acquisition.
We have quickly delevered post-acquisition and are down to 2.5x as of the end of the year. The business continues to generate strong cash flow, providing the opportunity for capital deployment with a focus on organic investment and acquisitions. Previously, our Board declared a dividend increase of approximately 10% in the dividend payable in March.
I will now hand it back over to John for our 2023 outlook.