Briefly provide context for why you're resigning. Refrain from going into too many details that may create a negative tone.Briefly describe your experience. You can describe any negative experiences you've had that you feel are necessary to include. The letter should be about you and your intention to leave the company. Don't write anything negative in the resignation letter 1 regardless of circumstances. Just write the letter as you would normally do and be done with. I regret to inform you that I will be leaving XXX on June 13th, 2022. Resignation letter when leaving on bad terms. Resignation letter for unsatisfactory working conditions.