What is the value of a Forever stamp?

The value of a Forever stamp is equivalent to the current First-Class Mail one-ounce price. This means that a Forever stamp can be used to mail a standard letter weighing one ounce or less, regardless of any future increases in postage rates. The key feature of the Forever stamp is its ability to provide a form of prepaid postage that does not expire and remains valid even as postal rates change over time.

Other choices do not fully capture the essence of a Forever stamp. While it is true that the stamp is applicable for domestic First-Class postage rates, it specifically applies to the one-ounce letter rate, making this choice the most precise. Therefore, understanding this distinction is essential when considering the functionality of the Forever stamp in mailing services.