Tax Abbreviations and Acronyms

1. CRS
   Communication Replacement System
2. E
   Employee
3. ACS
   Automated Collection Service
4. CEP
   Coordinated Examination Program
5. SET
   Self-Employment Tax
6. TAS
   Taxpayer Advocate Service
7. CCO
   Computing Center Operations
8. PAS
   Program Analysis System
9. C&B
   Cumulative Bulletin
10. ISP
    Industry Specialization Program
11. NSTP
    National Society of Tax Professionals
12. PRP
    Problem Resolution Program
13. Rev. Proc.
    Revenue Procedure
14. Rev. Rul.
    Revenue Ruling
15. SEP
    Special Enforcement Program
16. T&C
    Tax Court
17. T&D
    Treasury Decision
18. USTC
    United States Tax Court
19. MCT
    Manufacturing, Construction and Transportation
20. APTC
    Advance Premium Tax Credit

Last updated: May 23, 2020 — Total entries: 2,338