Procedures for QW-4 Program Cases
Internal Revenue Manual Part 5. Collecting Process · 2026-10-03 edition · updated 2026-10-04 · United States
When contacted by the taxpayer add the case to WHCS.
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Cases where lock-in letters were issued by the QW-4 program will not have a TC 971 AC 146/147 transaction on Master File. You must input a TC 971 AC 146 to IDRS, using the current date on the current year, before inputting a modification or release transaction. It is not necessary to input the TC 971 AC 146 to WHCS, only the subsequent TC 97X AC 14X.
When modifying a QW-4 lock-in, input TC 971 AC 148 with posting delay (1) on the current year to WHCS and IDRS.
Update AMS history.
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