You can purchase postage with any type of credit or debit card. You can manage this in the Settings / Payment Method page.
You will only be charged when you purchase postage, and you will only be charged the exact amount of the postage (unless you configure your account to have a Default Payment Amount, which can be helpful if you’re purchasing lots of postage and want less transactions on your statements).
Are there any fees?
With Pirate Ship you simply pay for postage as you go, at the deepest discounts possible. Since there's no monthly fees or hidden costs, you don't need to provide any payment information to sign up for a free account... but you'll need to add a card when you're ready to buy postage.
Can I pay with PayPal?
We don't take PayPal at this time, but you can pay for postage using the PayPal Business Debit MasterCard.