As a songwriter, it is essential that you protect your intellectual property. By technical standards, a work is automatically copyrighted and protected under the US Copyright law once it has been made into a fix, tangible form - you are not required to register your work before you can claim copyright. However, you do have the option to submit your copyrighted work the US Library of Congress for further protection. The benefit of this is that you are granted:
Songtrust does not register your songs with US Copyright Office. If you would like to do so, you can copyright your works via copyright.gov. Copyrighting your works does not mean you will be paid - you still have to register with a publishing administrator, start your own publishing company, or sign a traditional publishing deal to exploit your works.
However, please note that the act of registering your songs with Songtrust is a great alternative to prove active ownership of your catalog without going through the US Copyright Office. That is why we encourage you to sign up with Songtrust and register your catalog under your ownership.