📞 IRS General Help Line (Individuals):

800-829-1040
(For individual income tax questions and account help)

📞 IRS Business Line:

800-829-4933
(For businesses, corporations, EINs, and payroll tax help)

📞 Refund Hotline:

800-829-1954
(Check the status of your refund if you can’t online)

📞 Automated Refund Status:

800-829-4477

📞 Collections Department (Tax Debt): 800-829-7650

📞 Automated Collection System (ACS): 800-829-3903

📞 Installment Agreement / Payment Plans:

800-829-1040 (same as general line)

📞 Balance Due Questions:

800-829-0922

📞 Form 1099 Help Desk: 866-455-7438

📞 Estate & Gift Taxes: 866-699-4083

📞 Excise Tax Questions: 866-699-4096

📞 Nonprofit/Exempt Organizations: 877-829-5500

📞 Identity Theft Hotline: 800-908-4490

📞 Fraud Hotline: 800-829-0433

📞 IP PIN Program (Identity Protection PIN): 800-908-4490

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📞 Practitioner Priority Service (for tax professionals):

866-860-4259

📞 CAF Unit (Centralized Authorization File – Form 2848/8821):

866-860-4259 (same as PPS)

📞 International Taxpayer Service (outside U.S.):

267-941-1000 (not toll-free)

📞 Taxpayer Advocate Service (TAS): 877-777-4778

📞 Whistleblower Hotline: 800-829-0433