Business Startup Costs Deduction: What New Businesses Can Write Off in 2025

Starting a business costs money before you ever earn your first dollar of revenue — market research, legal fees, signage, initial marketing, and training all add up. The good news is the IRS lets you deduct a portion of these startup costs immediately, with the rest recovered over time.

The $5,000 Immediate Deduction

New businesses can typically deduct up to $5,000 in startup costs in their first year of operation, though this immediate deduction phases out dollar-for-dollar once total startup costs exceed $50,000, and disappears entirely above $55,000.

What Counts as a Startup Cost

Market research, travel to scout locations, advertising before opening, fees for consultants or professionals who helped launch the business, and employee training conducted before the business officially opened all qualify as startup costs.

Costs That Are Handled Differently

Costs to form a legal entity like an LLC or corporation are treated as organizational costs, a related but separate category with its own $5,000 immediate deduction and phase-out rules. Equipment purchases are depreciated separately rather than treated as startup costs.

Amortizing the Remainder

Startup costs beyond the immediate $5,000 deduction are amortized — deducted in equal amounts — over 180 months, or 15 years, starting the month your business begins operating.

When Does a Business “Begin”?

The IRS considers a business to begin when it starts actual operations, not simply when you form a legal entity or start spending money. Costs incurred before that point are startup costs; costs after are ordinary business expenses deducted normally.

What If the Business Never Launches?

If you spend money investigating or preparing a business that never actually starts operating, those costs generally can’t be deducted as business expenses, though costs related to a general search for any business (rather than a specific one) may be treated differently.

Recordkeeping for Startup Costs

Keep every receipt and invoice from before your official launch date, along with documentation of when the business actually began operating, since this date determines both your amortization start date and which costs count as startup expenses versus ordinary operating expenses.

Frequently Asked Questions

Can I deduct the full $5,000 no matter how small my business is? Yes, as long as your total startup costs are under $50,000; the deduction simply covers up to $5,000 of those costs immediately, with any remainder amortized.

What if my startup costs are less than $5,000 total? You can deduct the entire amount in your first year, since the $5,000 figure is a cap, not a fixed amount you must claim regardless of actual costs.

Do I need to make a special election to claim this deduction? Generally the deduction is treated as automatically elected when you file your first return claiming these deductions, but a tax professional can confirm the correct treatment for your situation.

A tax professional can help you correctly classify costs as startup, organizational, or ordinary business expenses, since misclassifying them can affect both your first-year deduction and how the remainder gets amortized over time.