Stamps to Cost One Cent More in 2013

First class mail up to 46 cents

It'll cost another penny to mail a letter next year.

The cash-strapped U.S. Postal Service said Thursday that it will raise postage rates Jan. 27, including a 1-cent increase in the cost of first-class mail to 46 cents.

It also will introduce a new global "forever" stamp, allowing customers to mail first-class letters anywhere in the world for one set price of $1.10. Currently, the prices vary depending on the international destination, with letters to Canada and Mexico costing 85 cents.