I
- Italian Civil Code
- Income Tax Act, 1967 (Schedular Tax Deduction)
- Income (USA)
- Independent contractor (USA)
- Industrial Safety and Health Law, 1972 (Japan)
- Israeli Tax Authority
- Institute of Labour Market Information and Analysis (Malaysia)
- Income Tax Law (Chile)
- ICA
- Internal Revenue Service (Chile)
- Italian Revenue Agency
- Incentive-based pay (USA)
- Income Tax Return form D-101 (Costa Rica)
- Inland Revenue Department (IRD)
- IdP
- Industrial Relations Act, 2015 (Ireland)
- Income Tax Department (ITD)
- Industrial Safety and Health Act
- IC
- Individual objective dismissal
- Industrial Relation Act, 1967 (Malaysia)
- IRS Form SS-8
- Inland Revenue Authority of Singapore (IRAS)
- Income Tax Ordinance, Bangladesh (Applicable Taxes)
- IBAN
- Internal Regulations (Colombia)
- Indirect discrimination
- Italian Constitution
- Income Tax