Effective August 1, 2020, the Postal Service™ will offer Click-N-Ship® as an additional postage payment method for First-Class Package Service — Retail® (for eligible Click-N-Ship business customers) and First-Class Package International Service® items for all Click-N-Ship customers. At this time, customers must have a usps.com business account to be eligible to purchase First-Class Package Service — Retail labels on the Click-N-Ship application.