Effective January 21, 2018, the cost of a first class stamp will go from .49 each to .50 each. The first class post card rate go from .34 each to .35 each. Large flat envelopes will go from .98 each to $1.00 each. Metered first class mail will go from .46 each to .47 each.
Overall prices for Priority Mail Express will increase by 3.9%. A one lb. package going to Zone 8 using Priority Mail Express wil cost $35.04 compared to $33.76 currently.
Now is a good time to buy Forever stamps before the increase in postage.