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Technical Automated Control System (TACS) - Tax Computation Specialists

Internal Revenue Manual Part 8. Appeals · 2026-10-03 edition · updated 2026-10-04 · United States

The Technical Automated Control System (TACS) sub-system is used by the TCS employees to maintain their inventory within ACDS. The sub-system enables the TCS to track their cases, time activity on the case, and indirect time. The TCS record consists of three sections:

Section I is the Case Information data that is picked up from the CASES database.

Section II is the Case History that includes information that identifies the work requested, requestor, priority indicator, etc.

Section III is the Case Activity Record that the TCS uses to charge time to the case and, as an option, add brief notes on the case activity.

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▸Contents — Internal Revenue Manual Part 8. Appeals

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