You want to give at least a two weeks' notice. In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started.If someone gives a resignation letter without giving the required one month's notice, what can his employer do against him (like filing a complaint)? If notice period is not mentioned in appointment letter, you may resign without notice. Regards. Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. Looking to resign with a Resignation Letter Without Notice? Use our resignation letter template for notice-period roles. Trudeau announced that Canada's Parliament would be suspended until March 24 to give his Liberal Party time to choose a new leader.