About two months before reaching retirement age, you will receive in your mail an old-age pension claim form on which your personal information, known to the National Insurance Institute, is printed.
You need to complete the rest of the data and, if needed, correct wrong information. The form must be submitted to a branch of the National Insurance Institute. If you did not received this form in your mail, you can download it from the website, or go to the branch of the Institute nearest to your home, and complete a claim there.
Besides, the claim may also be sent by post or fax, or via the website.