Income Tax e-file : Forms and publications
Modernized Electronic Filing (MeF)
| Publication 93 | New York State Modernized e-File (MeF) Guide for Return Preparers for Tax Year 2026 |
| Publication 95-T | New York State Modernized e-File (MeF) Guide Software Developer Acceptance Test Booklet |
| Error Code Listing | 2026 Error Code Listing |
| TR-579-IT | New York State E-File Signature Authorization for Tax Year 2026 |
| TR-579.1-IT | New York State Authorization for Electric Funds Withdrawal for Tax Year 2026/2027 |
| Letter of Intent | Letter of Intent to Develop MeF Personal Income Tax e-File Software |
| LOI Supplemental Page 2 | Supplemental Copies of Letter of Intent Page 2 |
| Forms Supported | Tax Year 2025 Forms Supported for e-File |
| Publication 93 | New York State Modernized e-File (MeF) Guide for Return Preparers for Tax Year 2025 (February 17, 2026) |
| Publication 95-T | New York State Modernized e-File (MeF) Guide Software Developer Acceptance Test Booklet (February 17, 2026) |
| Error Code Listing | 2025 Error Code Listing |
| TR-579-IT | New York State E-File Signature Authorization for Tax Year 2025 (October 2, 2025) |
| TR-579.1-IT | New York State Authorization for Electric Funds Withdrawal for Tax Year 2025/2026 (October 2, 2025) |
| Letter of Intent | Letter of Intent to Develop MeF Personal Income Tax e-File Software (October 2, 2025) |
| LOI Supplemental Page 2 | Supplemental Copies of Letter of Intent Page 2 (October 2, 2025) |
| Forms Supported | Tax Year 2025 Forms Supported for e-File (January 12, 2026) |
| Publication 93 | New York State Modernized e-File (MeF) Guide for Return Preparers for Tax Year 2024 (December 17, 2024) |
| Publication 95-T | New York State Modernized e-File (MeF) Guide Software Developer Acceptance Test Booklet (December 17, 2024) |
| Error Code Listing | 2024 Error Code Listing (September 26, 2024) |
| TR-579-IT | New York State E-File Signature Authorization for Tax Year 2024 (October 10, 2024) |
| TR-579.1-IT | New York State Authorization for Electric Funds Withdrawal for Tax Year 2024/2025 (October 10, 2024) |
| Letter of Intent | Letter of Intent to Develop MeF Personal Income Tax e-File Software (September 26, 2024) |
| Forms Supported | Tax Year 2024 Forms Supported for e-File |
| Publication 93 | New York State Modernized e-File (MeF) Guide for Return Preparers for Tax Year 2023 (November 14, 2023) |
| Publication 95-T | New York State Modernized e-File (MeF) Guide Software Developer Acceptance Test Booklet (November 14, 2023) |
| Error Code Listing | 2023 Error Code Listing (March 19, 2023) |
| TR-579-IT | New York State E-File Signature Authorization for Tax Year 2023 (September 28, 2023) |
| TR-579.1-IT | New York State Authorization for Electric Funds Withdrawal for Tax Year 2023/2024 (September 28, 2023) |
| Letter of Intent | Letter of Intent to Develop MeF Personal Income Tax e-File Software (September 28, 2023) |
| Forms Supported | Tax Year 2023 Forms Supported for e-File |
Resources
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