According to Atlassian's FAQ, discounts can be offered to some United States Federal, State, and Local government organizations through Atlassian's Government Aggregator Carahsoft.

To get more information about the rules and the necessary requirements to be considered for a discount, you can contact Carahsoft at or visit All other International Government organizations, purchasing Atlassian software, are required to purchase commercial licenses.

It's not clear in the Atlassian documentation if Carahsoft also provides discounts for Marketplace plugins, to check this we advise reaching Atlassian Licensing and Billing Support or Carahsoft through the links above.

For more information about the commercial license pricing and related subjects, you can check this link for the Server version and this link for the Cloud version.