To help you draft your resignation letter like the example above, here's a checklist of what to include: What to include in a resignation letter. A resignation letter is a way to formally end your employment and provide details such as an end date and contact information.Download Pennsylvania Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature. The formatting of a professional resignation letter should be brief and to the point. 2) Write a resignation letter. This sample resignation letter is available for use on UpCounsel. So you recently accepted a new position, now what? We'll go over how to write a resignation letter and why it's important. The body of your letter can be one statement that explains you're leaving your job on a specified date. The employee should make sure to include their name, current job position, a brief explanation of why they are resigning, and what date their last day will be.