IDES tax withholding fax number (TAX-2 form)

Where to fax the IDES TAX-2 form to change federal or state tax withholding on your current Illinois unemployment claim.

Verified October 22, 2026Checked against Contact IDES (ides.illinois.gov).

IDES tax withholding fax number (TAX-2 form): which number to use
Who uses it	Office	Fax
Claimants changing withholding on a current claim	IDES 24-hour tax withholding fax line	(630) 495-8199

Before you fax

The page says to complete the TAX-2 form, sign it, then fax it.

Last verified October 22, 2026

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