How Much Does A Book Of Stamps Cost 2024. In 2023, a forever stamp cost 63 cents, and a book of stamps cost $12.60. As we have stated above, there are a total of 20 postal stamps in a book (0.63 x 20 = 12.6).

Costs to send a letter by certified mail and insure packages will. Stamps.com customers enjoy additional discounts over most commercial rates , which will automatically appear in your account.