Depending on the publisher, it can cost you anywhere from two or three thousand, even over ten thousand dollars in APCs to publish your research. A TA helps to eliminate financial hurdles from scholarly publication by redirecting the APC payment to your institution.
With most TAs, you retain copyright control over your own work. Learn more about rights retention or predatory publishing.
A TA allows you to choose whether to publish open access. Should you target an eligible hybrid open access journal (requires a subscription to read), you still have the choice to publish fully open at the article level. You may also choose the Creative Commons license.
Some TAs automatically publish your paper in an institutional repository if your funding institution requires it. You may also choose a CC BY license if this is stipulated by your funder.