While there is no official platform specifically named "wwwxx," this phrasing is often used by users searching for a way to log in and file or view 2018 tax returns using "portable" (offline/standalone) software or cloud portals.
Be cautious of URLs containing strings like "wwwxx." Official tax login pages will always use and, if they are U.S. federal sites, will end in .gov . Never enter your Social Security Number (SSN) on a site that does not have a valid security certificate or looks suspicious. 2018 Instruction 1040 - IRS wwwxx 2018 tax login portable
: Often your PAN in lowercase followed by your Date of Birth in DDMMYYYY format (e.g., abcde1234f01011990 ). Key Tips for "Portable" Users While there is no official platform specifically named