The U.S. 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.
And Priority Mail prices will jump 5.9 percent, making a small box that previously cost $7.20 to rise to $7.90.
The postal service lost nearly $4 billion in 2018, reportedly from lower mail volume and pension and health care costs.