One hundred percent of the amount paid by the person for medical care insurance, not including any amount that is paid with a premium assistance credit amount under 26 USC 36B. In this subdivision, “medical care insurance” means a medical care insurance policy that covers the person, his or her spouse and the person’s dependents and provides surgical, medical, hospital, major medical or other health service coverage, and includes payments made for medical care benefits under a self-insured plan, but “medical care insurance” does not include hospital indemnity policies or policies with ancillary benefits such as accident benefits or benefits for loss of income resulting from a total or partial inability to work because of illness, sickness or injury.

From the amount calculated under subd. 19. a., subtract the amounts deducted from gross income for medical care insurance in the calculation of federal adjusted gross income.

For taxable years beginning before January 1, 2021, for a person who is a nonresident or a part-year resident of this state, modify the amount calculated under subd. 19. b. by multiplying the amount by a fraction the numerator of which is the person’s net earnings from a trade or business that are taxable by this state and the denominator of which is the person’s total net earnings from a trade or business.

For taxable years beginning after December 31, 2020, for a person who is a nonresident or a part-year resident of this state, modify the amount calculated under subd. 19. b. by multiplying the amount by a fraction the numerator of which is the person’s wages, salary, tips, unearned income, and net earnings from a trade or business that are taxable by this state and the denominator of which is the person’s total wages, salary, tips, unearned income, and net earnings from a trade or business. In this subd. 19. cm., for married persons filing separately “wages, salary, tips, unearned income, and net earnings from a trade or business” means the separate wages, salary, tips, unearned income, and net earnings from a trade or business of each spouse, and for married persons filing jointly “wages, salary, tips, unearned income, and net earnings from a trade or business” means the total wages, salary, tips, unearned income, and net earnings from a trade or business of both spouses.

For taxable years beginning after December 31, 2020, reduce the amount calculated under subd. 19. b. or cm. to the person’s aggregate wages, salary, tips, unearned income, and net earnings from a trade or business that are taxable by this state.