IRS Taxpayer Assistance Center
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Address
1301 Pennsylvania Ave NW Unit 501, Washington, DC 20004
Phone
Hours of Operation
- Monday 9 AM–9 PM
- Tuesday 9 AM–9 PM
- Wednesday 9 AM–9 PM
- Thursday 6 AM–9 PM
- Friday 9 AM–9 PM
- Saturday 9 AM–9 PM
- Sunday 9 AM–9 PM
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