If you choose to appeal, a written request must be submitted within 60 days from the day you receive the letter of denial. You will be granted a five-day grace period to account for the mail delay unless you have proof that it arrived even later. When the Social Security Administration (“SSA”) finalizes your claim, they will send you a letter rationalizing why they made the decision they did. If you disagree with the decision, you can dispute it, and the SSA will inspect your case again. During an appeal, the SSA will take a look at the initial decision, even the sections that were in your favor, and reverse it assuming the original denial was a mistake. If you need assistance with your appeal, contact the local Social Security office.