Maine recently released its 2024 Electronic File Specifications for Form W-2. The specifications allow business filers to format their W-2 bulk files for upload and filing with Maine Revenue Services (MRS) on the new Maine Tax Portal (MTP). There were several non-substantive updates to the document including some rearranging of sections and editorial changes and the addition of a column displaying the length of each entry field. The record also had some changes, primarily adding field positions for the four-digit zip code extensions and adding a section for foreign state/province.
