Use these sample letters for declining a job offer as a starting point to fill in your details. If you decide to reject the settlement offer, you'll need to do so in writing.Unfortunately, I have decided not to accept the position, as it isnt a good fit for me at this time. How do I decline a job offer without offending? I want to thank you for the offer. Always reject a settlement offer in writing. Type a letter to your contact at the insurance company listing the reasons you think that their offer is too low. I regret to inform you that I am unable to accept this offer. Make it short and sweet; "Due to unforeseen circumstances I must decline the offer I previously accepted. Your appeal starts with filling out IRS Form 13711, Request for Appeal of Offer in Compromise.