The IRS allows you to deduct costs incurred before your business officially opens. These are expenses related to investigating, creating, and launching your business that would have been ordinary business expenses if you were already operating.

Common deductible startup costs include market research and feasibility studies, advertising to announce your opening, travel to scout locations or meet potential suppliers, training for yourself and employees before opening, and professional fees paid to attorneys or consultants helping with setup. Wages paid to employees during training before the business opens also count.

The tax treatment follows a specific structure. You can deduct up to $5,000 in startup costs in your first year of business. This $5,000 limit phases out dollar-for-dollar when your total startup costs exceed $50,000. Spend $53,000 on startup costs and your first-year deduction drops to $2,000. At $55,000 or more, you get no immediate deduction at all.

Remaining startup costs that exceed your first-year deduction must be amortized over 180 months. If you spent $20,000 on startup costs, you would deduct $5,000 the first year and spread the remaining $15,000 over 15 years. The monthly amortization starts the month your business opens.

Organizational costs are a separate category with their own $5,000 deduction. These include state filing fees, legal fees for creating your entity, and costs of organizational meetings. The same $50,000 phase-out applies to organizational costs independently from startup costs.

Not everything you spend before opening qualifies. Equipment, inventory, vehicles, and other assets that would normally be depreciated or capitalized are not startup costs. A truck you buy for your business gets depreciated on its own schedule. Office furniture follows depreciation rules. These purchases have their own tax treatment regardless of when you bought them.

Keep records of everything you spend before opening, including dates and receipts. New business setup often involves many small expenses that add up. The date matters because expenses incurred after your business starts operating are regular business expenses, not startup costs, and get deducted in full during the year you paid them.

If you abandon the business idea before ever opening, you cannot deduct these costs as business expenses. They become personal expenses with no tax benefit. Once you actually start the business, the deduction and amortization rules kick in.

Working with someone who handles small business tax preparation in your first year helps ensure you capture all qualifying startup costs and elect the proper treatment on your return. Missing the election or failing to track pre-opening expenses means leaving money on the table.