First class postage increases 1/27 so if you’re mailing invitations in the next 4 weeks, be sure to use $0.46 on your response envelope.
The price for First-Class Mail single-piece letters will increase by just a penny when prices change in Jan. The new 46 cent Forever stamps will allow customers to mail letters to any location in the United States. Forever stamps are always good for mailing a one-ounce letter anytime in the future regardless of price changes.
Postage Increase
Highlights of the new single-piece First-Class Mail pricing, effective Jan. 27, 2013 include:
- Letters (1oz.) — 1-cent increase to 46 cents
- Letters additional ounces — unchanged at 20 cents
- Letters to all international destinations (1oz.) — $1.10
- Postcards — 1-cent increase to 33 cents
For more info see the full press release here: http://about.usps.com/news/national-releases/2012/pr12_114.htm
You can find more current rates and calculators here: http://pe.usps.com/