DETERMINING TAXABLE INCOME
26 CFR 1.1-1
Income tax on individuals
26 CFR 1.1-1
26 USC 1.1-1
Tax imposed
26 USC 1.1-1
26 USC 1.63-1
Taxable income defined
26 USC 1.63-1
26 USC 1.61-1
Gross income defined
26 USC 1.61-1
26 CFR 1.61-1
Gross income
26 CFR 1.61-1
26 USC 861(a)
Income from sources within the United States
26 USC 861
26 USC 861(B)
Taxable income from sources within United States
26 USC 861(B)
26 USC 862
Income from sources without the United States
26 USC 862
26 USC 863
Special Rules for determining source
26 USC 863
26 USC 871(B)
Tax on nonresident alien individuals
26 USC 871
26 USC 882
Tax on income of foreign corporations connected with United States business
26 USC 882
26 CFR 1.861-1
Income from sources within the United States.
26 CFR 1.861-1
26 CFR 1.861-8
Computation of taxable income from sources within the United States and from other sources and activities.
26 CFR 1.861-8
26 CFR 1.861-14T
Special rules for allocating and apportioning certain expenses
26 CFR 1.861-14T
26 CFR 1.862-1
Income specifically from sources without the United States.
26 CFR 1.862-1 26 CFR 1.862-1
26 CFR and 1.863-1
Allocation of gross income under section 863(a).
26 CFR and 1.863-1
WAGE WITHHOLDING
26 USC 3402.
Income tax collected at source
26 USC 3402
26 CFR 31.3402(a)-1
Requirement of withholding
26 CFR 31.3402(a)-1
26 CFR 31.3402(f)(2)-1(e),
Withholding exemption certificates
26 CFR 31.3402(f)(2)-1(e),
26 CFR 31.3402(f)(2)-1(g),
Withholding exemption certificates.
26 CFR 31.3402(f)(2)-1(g),
26 CFR 31.3402-(n)(1)
Employees incurring no income tax liability
26 CFR 31.3402-(n)(1)
26 CFR 31.3402 (g)-1(a)(2),
Supplemental wage payments
26 CFR 31.3402 (g)-1(a)(2)
26 CFR 31.3402(p)-1
Voluntary Withholding Agreements
26 CFR 31.3402 (p)-1
TITLE 5--GOVERNMENT ORGANIZATION AND EMPLOYEES
CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY
26 CFR 1.1441-7
General provisions relating to withholding agents
26 CFR 1.1441-7
26 USC 1441
Withholding of tax on nonresident aliens
26 USC 1441
26 USC 1442
Withholding of tax on foreign corporations
26 USC 1442
26 USC 1443
Foreign tax-exempt organizations
26 USC 1443
26 USC 1444
Withholding on Virgin Islands source income
26 USC 1444
31 CFR 31.215
Withholding of Distric of Columbia State, City, and County Income or Employment taxes by Federal Agencies.
31 CFR 31.215
31 CFR 31.215.6
In general..
31 CFR 31.215.6
31 CFR 31.215.9
Withholding certificates.
31 CFR 31.215.9
8 USC 1324b(a)(3)(A).
Unfair immigration-related employment practices
8 USC 1324b(a)(3)(A)
8 USC 1324a
Unlawful employment of aliens
8 USC 1324a
PRIVACY ACT AND PAPERWORK REDUCTION ACT
Title 5--Administrative Personnel
CHAPTER III--OFFICE OF MANAGEMENT AND BUDGET
5 CFR 1320
Controlling Paperwork Burdens On The Public
5 CFR 1320
5 CFR 1320.6
Public Protection
5 CFR 1320.6
5 CFR 1320.3(c)
Definitions
5 CFR 1320.3(c)
5 U.S.C.A. 552(a)
Records maintained on individuals
5 U.S.C.A. 552(a)
SOCIAL SECURITY