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Maine Tax Portal Bulk File Upload Specifications & Instructions

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MTP Withholding Specifications

2026 MTP Quarterly Specifications (PDF)

2026 MTP Amended Quarterly Specifications (PDF)

2025 MTP Quarterly Specifications (PDF)

2025 MTP Amended Quarterly Specifications (PDF)

Sample File (.txt)
 

1099/W-2G File Upload Specifications

Final 2025 1099/W-2G Specifications (PDF)

2024 1099/W-2G Specifications (PDF)

 

W-2 File Upload Specifications

2025 W-2 UPDATED Final Specifications (PDF)

2024 W-2 Specifications (PDF)

 

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