USPS Commercial Pricing: "Commercial Pricing" describes the most deeply-discounted shipping rates available when shipping with the U.S. Postal Service.
A history of USPS pricing tiers
USPS used to offer three pricing tiers:
Retail Pricing: What you’ll pay if you walk into your local Post Office or at USPS.com
Commercial Base Pricing (also known as CBP): What you’ll pay with traditional shipping software.
Commercial Plus Pricing (also known as CPP): The most deeply discounted shipping rates available.
In 2019, USPS merged Commercial Base Pricing and Commercial Plus Pricing into one pricing tier: Commercial Pricing.
Pirate Ship is 100% free with no markups, minimums, or hidden fees
Don't sail with two eyepatches on: Most shipping software continues to refer to "Commercial Plus Pricing" in an attempt to fool you with hidden markups on top of postage costs. Don't fall for it!
No markups, fees, or per-label costs: Pirate Ship is the only shipping software that doesn't add any markup, monthly fees, or per-label costs. Pirate Ship is 100% free, and all Pirate Ship accounts come with Commercial Pricing rates for all services, including Priority Mail Cubic®, with no markup or minimums.