The United States Post Office is raising prices on stamps and services.
Starting Sunday, a first class, one-ounce mail letter will go up to 55 cents.
The nickel increase is the largest percentage hike since 1991 when postage increased from 25 to 29 cents.
Forever stamps are also jumping to 55 cents.
Priority mail prices will jump 5.9 percent, making a small box that previous cost $7.20 to rise to $7.90.