Forever stamps are a type of postage stamp issued by the United States Postal Service (USPS) that can be used to mail letters regardless of the current postage rate or when they were purchased. They were first introduced in April 2007 and the first Forever Stamp featured an image of the Liberty Bell. Here are some key facts about Forever Stamps:

• Forever Stamps are always sold at the same price as a regular First-Class Mail stamp.
• They are non-denominational First-Class postage, which means that they can be used to mail First-Class letters no matter what the postal rate.
• The value of a Forever Stamp is the domestic First-Class Mail letter price in effect on the day of use.
• Forever Stamps are available for purchase at post offices nationwide, online at usps.com, and by phone at 1-800-STAMP-24 (1-800-782-6724). They are sold in sheets and booklets of 20.
• Customers can use Forever Stamps for international mail, but since all international prices are higher than domestic prices, customers will need to attach additional postage.
• Forever Stamps are ideal for mailing normal-sized, one-ounce letters within the United States. If a letter weighs more than one ounce, additional postage must be included along with the Forever Stamp to ensure USPS delivery.
• Forever Stamps don’t have a specific monetary value printed on them; instead, they feature the word “forever” with a slash through it to indicate that it is a Forever stamp.
• The price of a Forever Stamp is subject to change. For example, in January 2023, the price of a First-Class Mail Forever stamp increased to 63 cents from 60 cents. However, Forever Stamps that were purchased before the price increase can still be used without adding additional postage to the envelope.

In summary, Forever Stamps are a convenient and economical option for anyone who needs to send out frequent mailings, as they can be used to mail letters regardless of the current postage rate or when they were purchased.