Mike Mas
Executive Vice President and Chief Financial Officer at Regency Centers
Thanks, Nick, and good morning, everyone.
I'll start with highlights from our second quarter results, walk through a few changes to our current year earnings guidance, provide some estimates for accretion related to our pending Urstadt Biddle merger, and finish with some comments on our balance sheet position.
We grew same-property NOI by 3.6% in the second quarter, after excluding the impact of COVID period reserve collections. Importantly, the largest driver of growth continues to be base rent, contributing 380 basis points to the NOI growth rate in the quarter. As we've continued to stress on previous calls, base rent growth is the most important indicator of our portfolio's performance. And in Q2, our growth was driven by the combination of Embedded rent steps, positive re-leasing spreads, growth in occupancy, and redevelopments coming online.
Turning to 2023 guidance, as always, I'll refer you to the helpful detail on Slides 5 through 7 in our earnings presentation. Driven by another strong quarter of leasing, incredibly strong, if I may add, and greater clarity around the current operating environment and bankruptcy impact, we've raised the bottom end of our same-property NOI growth range as well as our ranges for NAREIT FFO and core operating earnings. With more certainty at the margin, we have eliminated some previous downside scenarios.
Our updated same-property NOI growth range is now 3% to 3.5%. While we've maintained our total credit loss assumption at 60 basis points to 90 basis points, we now expect a greater contribution from average commenced occupancy, benefiting from strong shop leasing through the first half of the year and absorption more than offsetting the negative impact from bankruptcy closings.
Same-property NOI is the primary driver of the $0.01 increase in the midpoint of our core operating earnings guidance range. With the Bed Bath auction behind us and the outcome of those stores now known, we now have clarity on impact from the acceleration of below-market rents tied to those locations. For the full year, we anticipate roughly $6 million of accelerated below-market rent within our non-cash guidance, about half of which has been recognized year-to-date.
Our full year non-cash guidance also includes $3.5 million of expected impact from the reinstatement of straight-line rent associated with the conversion of cash basis tenants back to accrual, up slightly from a quarter ago. As a result, we've raised our assumption for non-cash items to plus or minus $37.5 million, positively impacting our NAREIT FFO range, the midpoint of which is up $0.02. For those that are undoubtedly starting to think about 2024, we consider both of these items, combining for $9 million to $10 million of non-cash revenue this year to be non-recurring in nature. And speaking of non-recurring items, our guidance for COVID period reserve collections for 2023 remains unchanged at $4 million.
As we thankfully reached the last of our collections on deferral agreements, and with only 5% of our tenants on a cash basis of accounting today, we are not currently anticipating any material COVID period collections to recur in 2024. These updated guidance ranges and the details I just reviewed remain on a Regency stand-alone basis only, and do not yet factor in any impacts from the Urstadt Biddle transaction, which we expect to close by the end of this month. We will provide updated current year guidance with more detailed assumptions on a pro forma basis, when we report our third quarter results, so more to come.
But in the meantime, we are prepared to offer a high-level outlook. Our expectation is to deliver incremental per share core operating earnings accretion of $0.01 in 2023, reflecting about four months of impact and plus or minus 1.5% accretion for the full year of 2024, which continues to include an estimated $9 million of annual G&A cost synergies. Importantly, this accretion estimate is for core operating earnings, not NAREIT FFO as it does not include any impact to non-cash items. The teams are making excellent progress with integration prep, and we're all excited for the merger closing and the future prospects of the combined company.
I'll finish by highlighting the strength of our balance sheet, which is the foundation of our capital allocation strategy. With one of the strongest balance sheets in the overall REIT sector, our leverage remains at the low end of our targeted range of 5 times to 5.5 times debt-to-EBITDA and will remain so following the close of Urstadt Biddle merger. We are generating significant free cash flow, expected to approach $150 million this year, self-funding our growing investments pipeline that Nick highlighted previously. And we have access to meaningful liquidity through our $1.25 billion line of credit, with less than 10% of our total debt maturing through the end of 2024.
I can't stress enough the importance of our balance sheet strength and allowing us maximum flexibility throughout economic cycles and providing us an ability to remain opportunistic as the team executes on our investment strategy.
With that, we look forward to taking your questions.