How to write a resignation letter that's effective immediately? Pick the perfect wording and convey the message best suited for your situation.Be prepared for an emotional or difficult conversation. Clearly and calmly explain your reason for leaving, and present your resignation letter. Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. Simply write that you are submitting your resignation effective xx date because you will be pursing other career opportunities. In the first sentence, clearly state your intention to resign and that your resignation is effective immediately. He served in the House of Representatives from 1833 until his election to the Senate, where he served from 1837 until his resignation in 1842. All legislative Powers herein granted shall be vested in a. Congress of the United States, which shall consist of a Sen- ate and House of Representatives.