How to Write an Acceptance Letter for a Job Offer? Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples.A job acceptance letter lets you outline the details of the job so that you are clear about your role in the company prior to your joining. Write a short message explaining that you accept the offer and enclose a formal acceptance letter in the attachments. CocoDoc collected lots of free Sample Job Offer Acceptance Letter for our users. Create your best resume yet. What you're reading now is a guide on how to create one for acting, along with an acting cover letter example. But out of all those kids, you accepted me. Do talk about how you are a good fit and how you can be an asset to the firm. The step-by-step guide to writing a cover letter.