The United States Postal Service filed a notice of price changes with the Postal Regulatory Commission (PRC).

If approved by the PRC, the proposed increases would take effect Jan. 27.

If favorably reviewed by the PRC, the new prices will include a 5-cent increase in the price of a First-Class Mail Forever stamp, from 50 cents to 55 cents.

The single-piece additional ounce price will be reduced to 15 cents, so a 2-ounce stamped letter, such as a typical wedding invitation, will cost less to mail, decreasing from 71 cents to 70 cents.

The proposed prices, approved by the governors of the Postal Service, would raise mailing prices by about 2.5 percent. Shipping services price increases vary by product. For example, Priority Mail Express will increase 3.9 percent and Priority Mail will increase 5.9 percent.