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IRS Customer Service: 800-829-0582 Ext. 652

Refund Status: 800-829-1040

Refund Hold: 866-897-3315

Collections: 800-829-7650

Tax Fraud: 800-829-0433

Tax Advocate: 877-777-4778

Offset: 800-304-3107

Order Transcripts: 800-908-9946

Amend Returns: 866-464-2050