US Internal Revenue Service (IRS) Phone Number

Phone Number:

+1 800-829-4933

Serivce Type:

Customer Service

Customer Service Hours: Mon-Fri 7am-7pm EST
Shortcuts & Tips: Use this number for Business Specialty Tax issues.
Service Details: Customer Problems, Support, Customer Care, Issues, Questions, Billing, Sales, Customer Service

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See US Internal Revenue Service (IRS) Contact List