Income Taxes: (Tables)

12 Months Ended

Feb. 28, 2019

Income Taxes:

Schedule of actual provision for income tax that differs from the amounts computed by applying the U.S. federal income tax rate to the pretax loss

	2019		2018
Expected benefit	$	(343,921)	$	(338,541)
Effect of expenses deducted directly by Dr. Burzynski		343,921		338,541
Other adjustments		(16,579)		(60,630)
Change in valuation allowance		16,579		60,630
Income tax expense	$	—	$	—

Schedule of components of the Company's deferred income tax assets

	2019		2018
Deferred tax assets:
Net operating loss carryforwards	$	155,548	$	138,969
Alternative minimum tax credit carryforwards		42,603		42,603
Total deferred tax assets		198,151		181,572
Less valuation allowance		(198,151)		(181,572)
Net deferred tax assets	$	—	$	—

Schedule of expiration of net operating loss carryforwards

The net operating loss carryforwards expire as of February 28 or 29 of the following years:

2022	$	29,250
2023	$	73,401
2024	$	69,394
2025	$	13,475
2026	$	46,972
2027	$	31,220
2028	$	7,737
2029	$	31,868
2030	$	—
2031	$	—
2032	$	—
2033	$	207,097
2034	$	76,643
2035	$	—
2036	$	—
2037	$	74,699