The Company has incurred net losses since inception. As of December 31, 2018, the Company had federal net operating loss carryforwards of approximately $3,450,000, which will be available to be carried forward indefinitely and federal net operating loss carryforwards of approximately $67,596,000, which at the latter date may be carried forward for tax years ending through December 31, 2037. Utilization of NOL carryforwards may be limited under various sections of the Internal Revenue Code depending on the nature of the Company’s operations. The Company’s income tax returns are subject to examination by the Internal Revenue Service and applicable state taxing authorities, generally for a period of three years from the date of filing.

Deferred taxes comprise the following as of December 31, 2018 and December 31, 2017: