WebAug 4, 2023 · Business and Specialty Tax Line and EIN Assignment ( 800-829-4933) Regular Hours of Operation Hours: M-F, 7 a.m. - 7 p.m. taxpayer local time; Alaska & …
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WebSep 8, 2023 · (617) 887-6367 9 a.m. - 4 p.m., Monday through Friday For personal income refund questions, visit Check the status of your tax refund or go directly to …
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WebCorporate taxpayers (Forms 1120, 1120-S, 1120-F) may contact the e-help Desk at 866-255-0654. Tax-exempt organizations can find further e-file information on IRS.gov at e …
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