What are somethings that I can write off in taxes as a small business owner working from home?
Home office deduction no longer exists. Read IRS publication 535 for a list of business expenses.
Look at a Schedule C for ideas.
Pascal the Gambler
Business expenses you have proof of. Supplies, etc
Would have to know more about your business. Basically, reasonable and necessary expenses
It will depend on the business. See a professional.