| Abbreviation | Definition |
|---|---|
| CBDT | Central Board of Direct Taxes |
| CBDT | Central Bureau for Direct Taxes |
| CBIT | Central Board of Indirect Tax |
| CBT | Competitive Balance Tax |
| CBT | Corporation Business Tax |
| CBTD | Commercial Buildings Tax Deduction |
| CCIT | Chief Commissioner of Income Tax |
| CCTB | Canada child tax |
| CCTB | Common Coporate Tax Base |
| CCTB | Common Corporate Tax Base |
| CCTB | Consolidated Corporate Tax Base |
| CCTB | Cumberland County Tax Bureau |
| CCTD | community college taxing districts |
| CCTR | Child Care Tax Rebate |
| CD | Customs Debenture |
| CDTD | Code des Droits et Taxes divers |
| CET | Carbon Emission Tax |
| CET | Construction Excise Tax |
| CFAT | Cash Flow After Taxes |
| CFBT | Cash Flow Before Taxes |