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Starting a Business

How to Track Your Pre-Opening Business Costs

By Matthew Slomowicz·June 6, 2026·4 min read

Money spent before a business officially opens (legal fees, equipment, initial inventory, a website, a security deposit) is easy to lose track of, since there's no revenue yet and often no formal bookkeeping system running.

Why pre-opening costs matter for taxes

Many of these startup costs are deductible, but the IRS treats them differently than ordinary expenses. Some must be capitalized and amortized over time rather than deducted immediately. Accurate records from day one make this determination possible; reconstructed guesses later usually aren't good enough.

Set up your books before you spend, not after

Opening a business bank account and connecting it to QuickBooks Online before the first pre-opening expense hits means every startup cost is captured automatically, categorized correctly, and ready for your accountant when it's time to file.

Keep every receipt and invoice

Pre-opening expenses often come from a scattered mix of vendors and one-off purchases. Attaching each receipt to its transaction as it happens, rather than trying to gather them all months later, is what makes this period reconstructible instead of a guessing game.

Getting this right from the very first dollar spent is exactly the kind of setup work worth doing alongside a bookkeeper, not alone.

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