Your name is how you are identified by the people in your life, but it is also important in an official capacity. Your name is your legal identity used on any and all official documents, from your Social Security card to your tax return. Because your name is a legal identity, there are certain requirements that are in place when you wish to change your name. The requirements will vary depending on the reason for the name change, with less stringent requirements generally in place for those who are changing their name as a result of marriage. The information in this section will help you understand what may be required for a formal and legal name change.