The following table summarizes the Company’s income tax expense and effective tax rates for the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30,
	2021			2020
Net loss before income taxes	$	(11,298	)	$	(5,096	)
Income tax expense	$	(6,004	)	$	(3,335	)
Effective tax rate		(53.14	)%		(65.44	)%

The Company has computed its provision for income taxes under the discrete method which treats the year-to-date period as if it were the annual period and determines the income tax expense or benefit on that basis. The discrete method is applied when application of the estimated annual effective tax rate is impractical because it is not possible to reliably estimate the annual effective tax rate. The Company believes the use of this discrete method is more appropriate than the annual effective tax rate method due to the early growth stage of the business. At this time, there is a high degree of uncertainty in estimating the Company’s annual pre-tax income and significant non-deductible expenses so the Company cannot reliably estimate the annual effective tax rate.

Internal Revenue Code (“IRC”) Section 280E denies, at the U.S. federal level, deductions, and credits attributable to a trade or business trafficking in controlled substances. Because the Company is subject to IRC Section 280E, the Company has computed its U.S. tax based on gross receipts less cost of goods sold. The tax provisions for the six months ended June 30, 2021 and 2020, have been prepared based on the assumption that cost of goods sold is a valid expense for income tax purposes.

The effective tax rate for the six months ended June 30, 2021 varies widely from the six months ended June 30, 2020, primarily due to the increase in non-deductible expenses as a proportion of total expenses in the current year. The Company incurs expenses that are not deductible due to IRC Section 280E limitations which results in significant income tax expense.

The federal statute of limitation remains open for the 2017 tax year to the present. The state income tax returns generally remain open for the 2016 tax year through the present. Net operating losses arising prior to these years are also open to examination if and when utilized.