The H1B processing time varies because all cases are different. Generally it takes between three to six months to process an H-1B visa.You must wait at least two weeks after you send in your application for a receipt from the USCIS and another two weeks before you call the USCIS to check the status.he H1B processing time varies because all cases are different. Generally it takes between three to six months to process an H-1B visa.