According to the Social Security Administration, retirees that are eligible for Social Security benefits can start collecting these benefits between the ages of 62 and 67. The full retirement age, also known as normal retirement age, is the age at which a person will receive the full monthly amount from their Social Security benefits. The full retirement age for people born in 1937 or before is 65. For those born between 1938 and 1959, the retirement age is between 65 and 67. The full retirement age for people born after 1965 is 67. Information to determine the full retirement age of a person born between 1938 and 1959 is available at the Social Security Administration website.

Step 1

Open a web browser and navigate to the Social Security Administration retirement benefits by birth year website.

Step 2

Locate the year of birth of the retiree in the table titled "Full Retirement and Age 62 Benefits by Year of Birth". For people born on January 1st, the Social Security Administration uses the previous year as the birth year for calculating full retirement age.

Step 3

Click on the year of birth for the retiree to determine the percentage decrease of monthly Social Security benefits for requests made before full retirement age.