Call the Taxpayer Helpline - (303) 238-7378
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Taxpayer Service Representatives are available (except on state holidays)
Monday through Friday, 8:00 a.m. to 4:30 p.m. MT
Additional Contact Options
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Taxpayer Service Representatives are available (except on state holidays)
Monday through Friday, 8:00 a.m. to 4:30 p.m. MT