5. Income Taxes

Our provision for income taxes is comprised of the following:

The income tax benefit recorded during 2018 is a result of our historical alternative minimum tax payments becoming fully refundable in 2018. Periodically, we perform assessments of the realization of our net deferred tax assets considering all available evidence, both positive and negative. Based on our historical operating losses, combined with our plans to continue to invest in our revenue growth and generate losses for the next few years, we have a full valuation allowance on our deferred tax assets. As of March 31, 2019, our gross net operating loss carryforwards were $82.8 million and $23.3 million for federal and state, respectively.