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Treasury Regulations · 26 CFR

§ 1.41-0A. Table of contents.

In effect eCFR current as of October 15, 2026

Regulation text, no changes From the eCFR, current as of October 15, 2026. The eCFR is an authoritative but unofficial editorial compilation of the Code of Federal Regulations; the official text is the annual CFR on govinfo. Compare it with this section on ecfr.gov (external site) or the official annual CFR on govinfo (external site).

Regulation under 26 U.S.C. § 41

Cite as 26 CFR § 1.41-0A

At a glance

Read from the text and its source citation. Not part of the regulation.

Status
In the current eCFR
Issued
January 3, 2001 by T.D. 8930
Issued under
26 U.S.C. § 41
Length
303 words · about 1 min to read

This section lists the paragraphs contained in §§ 1.41-0A, 1.41-3A, 1.41-4A and 1.41-5A.

§ 1.41-0A Table of contents. § 1.41-3A Base period research expense.

(a) Number of years in base period.

(b) New taxpayers.

(c) Definition of base period research expenses.

(d) Special rules for short taxable years.

(1) Short determination year.

(2) Short base period year.

(3) Years overlapping the effective dates of section 41 (section 44F).

(i) Determination years.

(ii) Base period years.

(4) Number of months in a short taxable year.

(e) Examples.

§ 1.41-4A Qualified research for taxable years beginning before January 1, 1986.

(a) General rule.

(b) Activities outside the United States.

(1) In-house research.

(2) Contract research.

(c) Social sciences or humanities.

(d) Research funded by any grant, contract, or otherwise.

(1) In general.

(2) Research in which taxpayer retains no rights.

(3) Research in which the taxpayer retains substantial rights.

(i) In general.

(ii) Pro rata allocation.

(iii) Project-by-project determination.

(4) Independent research and development under the Federal Acquisition Regulations System and similar provisions.

(5) Funding determinable only in subsequent taxable year.

(6) Examples.

§ 1.41-5A Basic research for taxable years beginning before January 1, 1987.

(a) In general.

(b) Trade or business requirement.

(c) Prepaid amounts.

(1) In general.

(2) Transfers of property.

(d) Written research agreement.

(1) In general.

(2) Agreement between a corporation and a qualified organization after June 30, 1983.

(i) In general.

(ii) Transfers of property.

(3) Agreement between a qualified fund and a qualified educational organization after June 30, 1983.

(e) Exclusions.

(1) Research conducted outside the United States.

(2) Research in the social sciences or humanities.

(f) Procedure for making an election to be treated as a qualified fund.

[T.D. 8930, 66 FR 295, Jan. 3, 2001]

Cross-references

Computed from the citations in the text of 26 CFR.

Code sections it cites

Regulations it cites

Amendment history

From the source citation at the end of the section, newest first. T.D. is a Treasury decision; FR is the Federal Register.

  1. Issued by T.D. 8930 (66 FR 295)

Where it sits in 26 CFR

  1. Subchapter A Income tax
  2. Part 1 Income taxes
  3. Research Credit—For Taxable Years Beginning Before January 1, 1990

Nearby sections