Looking for feedback, in general, on tax reporting in preparation for 2018 tax filing. We currently file join, itemized (we'll see if the new tax laws adjust this) and will push a Schedule C for the home based FFL. I'm tracking everything, retaining receipts, and realize some of this will not be written off but looking for the common tax exemptions taken in this industry. Particulally curious about inventory not sold at the end of the tax year and how that is reported. I'll be in the red for this tax year as I began the business in April.

insurance, FFL/SOT license fees, home office (if you do that), postage, UPS box fee, office supplies, etc

What did your tax preparer, account or CPA tell you?