WASHINGTON — The cost of mailing a first-class letter went from 50 cents to 55 cents Sunday.
It’s the largest percentage rise since 1991, when postage increased .
When the first Forever stamp was issued in 2007, it cost 41 cents.
A book of Forever stamps now costs $11.
Post card rates stay the same at 35 cents.
Those who buy postage online through will pay 50 cents for a stamp, USPS said.
Priority Mail Express rates also increased. Rates went up an average of 3.9 percent.
Rates for flat-rate envelopes for Priority Mail increase 70 cents to 72 cents.
Mailing something using a Media Mail rate will go up almost 3 percent.
The rate hike comes as the Postal Service lost $3.8 billion in 2018, its 12th year in a row of losses.
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Here’s a look at how USPS rates changed Sunday:

