Small Business Startup Cost Deduction — Deduct Up to the Immediate Limit Before Amortizing the Rest

What Is It?

The tax code lets a new business deduct part of qualifying startup costs right away and then amortize the rest over time once the active trade or business actually begins.

This is valuable because a lot of pre-opening spending is not fully deductible all at once, even though it feels like ordinary business setup spending.

Do I Qualify?

• You spent money before the business actually began operating
• The expenses were for investigating, creating, or preparing to launch the business
• The business eventually began active operations
• You can separate startup costs from other types of costs such as organizational costs or capital asset purchases

How It Works

1. Identify which pre-opening costs count as startup costs.
2. Determine when the active trade or business actually began.
3. Deduct the allowed immediate amount and amortize the remainder over the required period.
4. Keep startup costs separate from organizational costs and asset-acquisition costs, which may follow different rules.

What Most People Don’t Know

• Pre-opening spending is not fully deductible in one shot. Many people assume early expenses are just current business deductions, but startup timing changes the treatment.
• The business start date matters a lot. Amortization generally begins when the active business actually starts.
• Organization costs and startup costs are not the same thing. Businesses often mix them together even though the tax rules distinguish them.
• Buying a specific business creates its own issues. Some acquisition-related costs are capital costs rather than ordinary startup deductions.

Frequently Asked Questions

Sources

• IRS Publication 535 — Business Expenses
• IRS Publication 583 — Starting a Business and Keeping Records