To amend the Internal Revenue Code of 1986 to extend expiring provisions, to fully allow the nonrefundable personal credits against regular tax liability, and for other purposes.

[AI summary unavailable — showing source text] Amends the Internal Revenue Code to allow an individual to offset the individual's entire regular tax liability, without regard to the minimum tax, by the personal nonrefundable credits (including the dependent care credit, the credit for the elderly and disabled, the adoption credit, the child tax credit, the credit for interest on certain home mortgages, the HOPE Scholarship and Lifetime Learning credits, and the District of Columbia homebuyer's credit ). (Sec. 1) Repeals the requirement that reduces the refundable child credit by the amount of an individual's minimum tax. (Sec. 2) Extends from June 30, 1999, through June 30, 2004, the tax credit for increasing scientific research activities. Revises the alternative incremental research credit rate by specified percentage increases in components of the rate formula. Declares that the research tax credit attributable to the period from June 30, 1999, through September 30, 2000, (suspension period): (1) shall not be taken into account with respect to any failure to pay estimated income tax for any taxable year in determining the amount of any installment due before October 1, 2000; and (2) shall not be allowed for any taxable year …