The difference between a side business that costs you money at tax time and one that does not is usually record-keeping. The deductions were there; the documentation was not.
Track every dollar in
All business income is taxable — whether or not you received a 1099 for it. Platforms only issue forms above certain thresholds, but the reporting obligation exists regardless.
Track every dollar out
Supplies, software, advertising, mileage, phone and internet portions, professional fees, and home office costs can all be deductible when they are ordinary and necessary for your business. Keep receipts or digital records as you go — reconstructing a year of expenses in March is miserable and usually incomplete.
Separate the money
A dedicated bank account or card for the business is the simplest audit-proofing there is. When business and personal spending mix, deductions get harder to defend and easier to miss.
Plan for the tax itself
Set aside roughly 25–30% of profit for federal and state taxes, and expect to pay quarterly estimates once the business is profitable. Your future self will thank you.
Your situation
General information only — your return may differ. If this article sounds like your situation, let's look at it properly.
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