Sometimes trying to figure out which genre you’re writing in is like learning to balance on a beam or performing the equivalent of a good floor routine.
This can be determined by the age of your main character or the content of your story.
Your choices are: Adult, Young Adult, and Middle Grade. If you go younger than that you are in the realm of picture books/chapter books which is generically classified as Children’s.
What is the major theme in your story? Is it more character or plot driven?
This will help to determine the main genre of your novel.
Where does your story take place? In the past? In the future? On this world or in another? This will help to determine the sub-genre of your novel.
Fiction Genres and Subgenres
Warning: This is NOT a complete list.
It may be hard to categorize your words, but it really does help when searching for an agent/editor/publisher. This is basic information they will want even before reading your work.
But your novel may be more than one of these. Suppose you began with an urban fantasy (set in this world and time) and then somersaulted into the paranormal, with a twist of mystery thrown in. The most important thing is to write your story and don’t worry if it teeters on a balance beam of genres. You will find your spot and stick the landing in the end.
That’s my take on it.