how long do us passports expire
Figure out how old you were when you received the passport. The length of validity of a U.S. passport is dependent on your age when it was issued, specifically whether you were at least 16. Add 10 years to the date of issuance if you were over 16 when you got the passport, or five years if you were 15 or younger. For instance, if you received a passport in November 2004 at age 25, your passport expires in November 2014. If you got the passport at age 14, it expired in November 2009. If your passport is set to expire in less than nine months, you should initiate the renewal process. It often takes several months to receive a new one, and some countries will not grant you admittance if the passport expires within six months.