Mailing a letter will cost three cents more, or 49 cents, starting in January.
That's according to a proposal from the US Postal Service today.
The price of sending a postcard would also go up by a cent, to 34 cents.
The rate hikes are expected to raise two-billion dollars for the cash-strapped Postal Service.
The Postal Service must first get the approval of its regulatory panel before it can raise prices.
So far, the Postal Service has lost nearly four billion dollars in the current fiscal year.
It lost 16 billion in 2012.
Total mail volume continues to fall.
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