Some postage rates INCREASE effective JULY 14, 2025:

•  1 oz domestic first class, $0.78
•  2 oz domestic first class, $1.07
•  3 oz domestic first class, $1.35
•  Each additional ounce, add $0.29
• Non-machinable surcharge, add $0.46 (for square envelopes or requiring hand processing)
• Domestic postcard rate, $0.62
• International postcards/1-oz letters, $1.70

As an example, a 1-oz square wedding invite that requires hand processing should cost $0.78 + $0.46 = $1.24.  As always, we strongly recommend all customers purchasing stamps for mailing confirm with the post office the postage total for their items.  Reach out with any questions you have!

Check out these Sun Science stamps!