Refund Inquiries | Internal Revenue Service
https://www.irs.gov/faqs/irs-procedures/refund-inquiries/refund-inquiries-0
WebSep 15, 2023 · If you lost your refund check, you should initiate a refund trace: Use Where's My Refund, call us at 800-829-1954 and use the automated system, or speak with an agent by calling 800-829-1040 (see telephone assistance for hours of operation).
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