It's perfectly okay to reply with, "Thank you for the offer. I really appreciate it.This type of letter verifies to the employer that you have accepted the job and the terms of the offer. Thank you for your offer letter. I would be happy to accept your offer. Here's a list of offer letter acceptance email reply samples and templates to express your enthusiasm. I am writing to confirm my acceptance of your employment offer on April 20 and to tell you how delighted I am to be joining XYZ Corporation in Chicago.