Here's what's changing on July 1st

Ground Advantage is increasing by up to $2.11:

Weight-Based Ground Advantage for shipments that weigh more than 1 pound are increasing by up to $2.11, mostly in 1-5 pounds.
Weight-Based Ground Advantage for shipments less than 1 pound are increasing by up to 33 cents for zones 6-8.
Ground Advantage Cubic rates are increasing by up to $1.67.

Priority Mail is increasing by up to $3.10:

Weight-Based Priority Mail rates are increasing by up to $3.10.
Priority Mail Cubic rates are increasing by up to $2.97.
Priority Mail Flat Rate prices are increasing by up to $1.18.

The new rates will lower the maximum discounts available for USPS compared to Retail Pricing from 89% to 88%.

Here's what's changing on July 14th

Media Mail rates will increase by up to 56 cents.
Signature Confirmation is going up by 20 cents to $3.70.