PlayStation Plus – Cutting a Kid Loose from a PS Account

Yes, it will work. You can buy PSN cards online, such as on Amazon, but make sure you purchase a US PSN card. Once you've purchased it, a code will automatically be sent to your email. If you have other accounts and want to buy PS+, all other accounts will also have PS+. The same goes for DLCs and downloaded games. However, this can happen only if the US account is the primary account.

In addition, make sure all accounts are set up before buying PS+. I made this stupid mistake of making my US account, purchasing PS+ and then creating a new user, so that new user didn't get PS+ because I created it after buying PS+ on the primary account.

They do stack.

If you have a look at the expiration date for any PS Plus content you've downloaded, you'll see it has been expanded by 1 year exactly.

On PS3, navigate to any PS Plus game, press , select Information, then scroll down to Expires.

On PS4, navigate to any PS Plus game, press OPTIONS, select Information, then scroll down to Valid Period (End) or to Remaining Time.

On PS Vita, touch and hold any PS Plus game, select Information, and see Expires or Remaining Time.

Due to DDoS attacks taking down SEN in December, Sony has decided to gift 5 days of PS Plus to whomever had a valid subscription in 2014-12-25 (December 25 of 2014). Because of that, it is possible the expiration date for your game may have been extended by a year and 5 days.