13 results for "41"

§ 1.41-0

Table of contents.

§ 1.41-0A

Table of contents.

§ 1.41-1

Credit for increasing research activities.

§ 1.41-2

Qualified research expenses.

§ 1.41-3

Base amount for taxable years beginning on or after January 3, 2001.

§ 1.41-3A

Base period research expense.

§ 1.41-4

Qualified research for expenditures paid or incurred in taxable years ending on or after December 31, 2003.

§ 1.41-4A

Qualified research for taxable years beginning before January 1, 1986.

§ 1.41-5A

Basic research for taxable years beginning before January 1, 1987.

§ 1.41-6

Aggregation of expenditures.

§ 1.41-7

Special rules.

§ 1.41-8

Alternative incremental credit applicable for taxable years beginning on or before December 31, 2008.

§ 1.41-9

Alternative simplified credit.