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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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