14.   Income Taxes

The Company recorded no income tax expense for the three months ended September 30, 2019 and 2018 because the estimated annual effective tax rate was zero. As of September 30, 2019, the Company continues to provide a valuation allowance against its net deferred tax assets since the Company believes it is more likely than not that its deferred tax assets will not be realized.

In December 2017, the United States Government passed new tax legislation that, among other provisions, lowered the corporate tax rate from 35% to 21%. In addition to applying the new lower corporate tax rate to any taxable income we may have, the legislation affects the way we can use and carryforward net operating losses previously accumulated and results in a revaluation of deferred tax assets and liabilities recorded on our balance sheet. Given that current deferred tax assets are offset by a full valuation allowance, these changes will have no net impact on the balance sheet. However, if we become profitable, we will receive a reduced benefit from such deferred tax assets.