WordPress does not have the ability to copy taxonomy terms. However, that is possible with the TaxoPress plugin.
Basic copying of Tags and Categories #
After installing the TaxoPress plugin, go to the “Terms” screen. You can click the “Copy” link next to any term. You will get a copy of the term that is attached to the same posts and taxonomy as the original term.
In the screenshot below you can see there is new term called “open source Copy”. It is attached to the same two posts as the original term. You can now rename that term and remove the “Copy” portion of the name.
Advanced copying of Tags and Categories #
There is also a more advanced “Copy” feature available. If you choose “Copy” from the “Bulk actions” dropdown, you’ll be able to move the copy of your term to a new taxonomy.
Once you’ve selected the post, you’ll be able to choose a “Destination Taxonomy” from a dropdown. That option is shown in this screenshot below:
You will now see a copy of the term that is now attached to your new taxonomy. The term will not be attached to any posts.