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Need to contact us via mail?

Use the appropriate PO Box listed below in Irwin, PA 15642 or pay online.

Be sure to include your contact information so we can respond to your inquiry.

Individual Final Tax Return
Use if requesting a refund
PO Box 509
Individual Final Tax Return
Use if return sent with payment
PO Box 529
Individual Final Tax Return
Use if no payment/no refund
PO Box 549
Individual Quarterly Estimates
PO Box 539
Tax Return Supporting Documentation
If filed separately from tax return
PO Box 506
Late-Filed Individual Tax Return
PO Box 504
Employer Withholding Tax
PO Box 559
Business Privilege Tax
PO Box 489
Employer Compliance
PO Box 506
Per Capita Tax
PO Box 519
PO Box 449
Current Real Estate
PO Box 505
Tax Certifications
PO Box 514
Delinquent Earned Income Tax
PO Box 499
Delinquent Real Estate
PO Box 426
Delinquent Per Capita Tax
PO Box 502


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