| Abbreviation | Definition |
|---|---|
| CIPFA | Chartered Institute of Public Finance and Accountancy |
| CIPM | Certificate Investment Performance Measurement |
| CIRA | Certified Insolvency and Restructuring Advisor (US) |
| CIRM | Certified in Integrated Resource Management |
| CIS | Comprehensive Income Statement |
| CISA | Certified Information Systems Auditor (US) |
| CISPA | Cayman Islands Society of Professional Accountants |
| CISSP | Certified Information Systems Security Professional (US) |
| CIT | Cash In Transit |
| CIT | Corporate Income Tax |
| CITC | Corporate Income Tax Credit |
| CITP | Certified Information Technology Professional (US) |
| CK | Check |
| CL | Cash Latency |
| CL | Current Liabilities |
| CLADR | Class Life Asset Depreciation Range |
| CLEC | Current Liabilities Exceed Cash |
| CLO | Collateralized Loan Obligation |
| CLP | Catalouge List Price |
| CLU | Chartered Life Underwriter (US) |