Ultimately, whether or not an author needs to register as a business is a legal question that can best be answered by consulting with a tax professional or an attorney.
Here are some general guidelines on when authors may need to register as businesses:
* If you earn a significant amount of income from your writing. In the United States, authors are generally not required to register as businesses unless they earn more than $400 per year from their writing. However, some states may have lower thresholds for business registration.
* If you have employees or contractors who help you with your writing. If you hire employees or contractors to help you with your writing, you will likely need to register your business in order to comply with tax and labor laws.
* If you sell your writing through a business entity. If you sell your writing through a business entity, such as a corporation or LLC, you will need to register your business in order to comply with tax and other laws.
* If you want to take advantage of certain tax deductions or benefits. Registering your business as a sole proprietorship or LLC can allow you to take advantage of certain tax deductions and benefits that are not available to individuals.
Again, it is important to consult with a tax professional or an attorney to determine whether or not you need to register your business as an author.