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Letter of Intent
Authorized Software Developers should register on the MEF Vendor Portal (MVP) at https://mytaxes.wvtax.gov/MVP/_/.
From the MVP, developers may submit their Letter of Intent (LOI) starting September 4.
The Letter of Intent (LOI) must be submitted no later than October 31 each year.
Substitute Tax Forms
Substitute Tax Form Requirements - This publication provides information necessary for the development of substitute forms. Software developers must comply with the requirements in this publication to gain approval by the Department.
The Tax Year 2024 update is coming soon.
Modernized Electronic Filing
Please refer to the MEF Handbook for further information. This publication provides information on specifications, requirements, and instructions applicable to the West Virginia State Electronic Filing (MEF) Program.
National Association of Computerized Tax Processors