New stamp prices go into effect starting May 12. Here's the new prices you'll be paying for postage:
First-Class Mail letter (1 oz.) $0.42
First-Class Mail letter (2 oz.) $0.59
First-Class Mail large envelope (2 oz.) $1.00
Certified Mail $2.70
First-Class Mail International to Canada and Mexico (1 oz.) $0.72
First-Class Mail International to all other countries (1 oz.) $0.94
USPS On the new prices.