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SECTION 18. FILING FORMS W-4
Internal Revenue Bulletin 1999-43 · 2026-10-03 edition · updated 2026-10-04 · United States
WITH THE INTERNAL REVENUE SERVICE
.01 An employer is required to send to the Service by the due date of the quar
October 25, 1999 538 1999–43 I.R.B.
Address:
Internal Revenue Service Austin Service Center Electronic Filing Help Desk P.O. Box 1231 Stop 6380 AUSC Austin, TX 78767 Attention: Electronic Filing
Telephone Number:
(512) 460-8900 (not a toll-free number)
Web site for Help Desk:
Web site for Publications:
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