nine months of 2020 on the debt secured by the Hilton Times Square. While we are required to record such default interest and penalties, recovery by the lender of these expenses is non-recourse to the Company, and we do not intend to pay the default interest and penalties as part of the ultimate resolution with the lender. The additional interest expense due to the Hilton Times Square loan default, the draw on our credit facility, and the amendments to our unsecured debt noted above were partially offset in the first nine months of 2020 as compared to the same period in 2019 by decreased interest on our lower debt balances and lower interest on our variable rate debt.
Our weighted average interest rate per annum, including our variable rate debt obligation, was approximately 4.0% and 4.2% at September 30, 2020 and 2019, respectively. Approximately 76.5% and 77.5% of our outstanding notes payable had fixed interest rates at September 30, 2020 and 2019, respectively.
Gain on sale of assets. Gain on sale of assets totaled $0.2 million for both the three and nine months ended September 30, 2020, and zero for both the three and nine months ended September 30, 2019. In July 2020, we recognized a $0.2 million gain on the sale of the Renaissance Harborplace.
Loss on extinguishment of debt. Loss on extinguishment of debt totaled $0.2 million for both the three and nine months ended September 30, 2020, and zero for both the three and nine months ended September 30, 2019. In September 2020, we recognized a loss of $0.2 million related to the write-off of deferred financing fees associated with repayments of a portion of our unsecured senior notes.
Income tax benefit (provision), net. Income tax benefit (provision), net was incurred as follows (in thousands):
| | | | | | | | | | | | |
| | Three Months Ended September 30, | | Nine Months Ended September 30, |
| | 2020 | | 2019 | | 2020 | | 2019 |
Current income tax benefit, net | | $ | 83 | | $ | 1,139 | | $ | 840 | | $ | 939 |
Deferred income tax (provision) benefit, net | | | — | | | (390) | | | — | | | 246 |
Change in deferred tax asset valuation allowance | | | — | | | — | | | (7,415) | | | — |
Total income tax benefit (provision), net | | $ | 83 | | $ | 749 | | $ | (6,575) | | $ | 1,185 |
We lease our hotels to the TRS Lessee and its subsidiaries, which are subject to federal and state income taxes. In addition, we and the Operating Partnership may also be subject to various state and local income taxes.
During the third quarter and first nine months of 2020, we recognized $0.1 million and $0.8 million, respectively, of net current income tax benefits, resulting from tax credits and refunds, net of combined current federal and state income tax expense. In addition, during the nine months ended September 30, 2020, we recorded a full valuation allowance of $7.4 million on our deferred tax assets because we can no longer be assured that we will be able to realize these assets due to uncertainties regarding how long the COVID-19 pandemic will last or what the long-term impact will be on our hotel operations.
During the third quarter and first nine months of 2019, we recognized a current income tax benefit of $1.1 million and $0.9 million, respectively, which includes combined current federal and state income tax expense based on 2019 projected taxable income net of tax credits available under the Tax Cuts & Jobs Act of 2017 and operating loss carryforwards for our taxable entities. During the third quarter and first nine months of 2019, we also recognized a deferred income tax provision of $0.4 million and a deferred income tax benefit of $0.2 million, respectively, related to adjustments to our deferred tax assets, net.
Loss (income) from consolidated joint venture attributable to noncontrolling interest. Loss (income) from consolidated joint venture attributable to noncontrolling interest, which represents the outside 25.0% interest in the entity that owns the Hilton San Diego Bayfront, totaled a loss of $1.8 million and income of $2.5 million for the three months ended September 30, 2020 and 2019, respectively, and a loss of $4.4 million and income of $6.1 million for the nine months ended September 30, 2020 and 2019, respectively.
Preferred stock dividends. Preferred stock dividends totaled $3.2 million for both the three months ended September 30, 2020 and 2019, and $9.6 million for both the nine months ended September 30, 2020 and 2019.
Non-GAAP Financial Measures. We use the following “non-GAAP financial measures” that we believe are useful to investors as key supplemental measures of our operating performance: EBITDAre; Adjusted EBITDAre, excluding noncontrolling interest; FFO attributable to common stockholders; and Adjusted FFO attributable to common stockholders. These measures should not be considered in isolation or as a substitute for measures of performance in accordance with GAAP. In addition, our calculation of these measures may not be comparable to other companies that do not define such terms exactly the same as the Company. These non-GAAP measures are used in addition to and in conjunction with results presented in accordance with GAAP. They should not be considered as alternatives to net income (loss), cash flow from operations, or any other operating performance measure prescribed by GAAP. These non-GAAP financial measures reflect additional ways of viewing our operations that we believe, when viewed with our