All shipping labels can be postdated 7 days, except for Priority Mail Express and International shipping labels which can only be postdated 3 days.

How long are USPS Priority Mail labels good for?

Technically, USPS shipping labels expire 28 days after you purchase them. Maybe “expire” isn't the right word; 28 days is the cutoff point when USPS deems the labels no longer valid. All this said, USPS generally gives a 2-3 day grace period for shipping labels.

Do prepaid shipping labels expire?

UPS prepaid shipping labels do not expire, which makes it possible to include them with your customers' orders. Before creating your prepaid shipping label, add your customer's address as a sender and your address as a recipient. Follow the prompts to create and print the label as usual.