@basedbagel it sounds like you're doing everything yourself instead of running tax questions through an accountant who could've told you that immediately. You also get tax relief if you have a net loss.
I'm not going to say to take a business tax course because it's a waste of time, but if you find a textbook, you can look for the specific rules related to your type of business. Business expense deductions, for example.
If you were taxed on gross, a lot of businesses would be wiped out.