Keep your letter short. Your resignation letter should be less than one page.Read on to learn how to write a nursing resignation letter, including tips and templates you can use to step away from your position like a pro. Below, we've included five tips for writing your nursing resignation letter, as well as an example letter you can use as a template. Specify your job title and the healthcare institution from which you're resigning. A professional resignation letter should also state the date you're leaving. Something like "Jane Doe Resignation Letter" should work. Attach the formal resignation letter in PDF format. Clearly state your intention to resign along with any relevant details such as your last working day. imageSign. A simple resignation letter format includes a resignation statement, an appropriate notice period, and an expression of gratitude.