Effective January 1, 2011
Send Regular Mail directed to IRS to:
PO Box 7346 (replaces 21126)
Philadelphia, PA 19101-7346
Send Overnight Mail directed to IRS to:
Internal Revenue Service
2970 Market Street
Mail Stop 5-Q30.133
Philadelphia, PA 19104-5016
Toll-free # will remain the same (800) 913-9358 but
Facsimile transmission # changes to (267) 941-1015


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