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IL Website
Phone — Call 1 800 732-8866 or 217 782-3336
to speak with our staff . . . Business hours: 8:00 a.m. to 5:00 p.m. Monday through Friday
Extended telephone hours for 2014 filing season:
for automated tax assistance . . . 24 hours a day, 7 days a week
The number for our TDD (telecommunications device for the deaf) is 1 800 544-5304.