What Are Start-Up Costs? The $5,000 Deduction and 15-Year Amortization

Startup costs, under IRS rules, are the expenses you pay before your business officially opens, and they get their own deduction: up to $5,000 in your first year of operation, with anything left over amortized evenly across 180 months.¹ That first-year deduction shrinks once your total startup spending crosses $50,000 and disappears entirely at $55,000. Understanding which expenses qualify, which don’t, and how the deduction actually works on your return can save you thousands on your first tax filing.

What Qualifies as a Startup Cost

The tax code uses a two-part test. A startup expenditure has to be connected either to investigating the creation or acquisition of a business, or to a for-profit activity you engaged in before the business began operating. It also has to be the kind of cost that would be an ordinary, deductible business expense if the business were already up and running.¹ Both prongs have to be satisfied. If an expense wouldn’t be deductible for an existing business, it isn’t a startup cost either.

In practice, qualifying costs fall into two groups. The first is investigatory: market research, feasibility studies, travel to scout locations, consultants hired to analyze demand or competition, and due-diligence work when you’re looking at buying an existing business. The second is pre-opening operating expenses, incurred after you’ve committed to a specific business but before you serve your first customer. Typical examples include employee training wages, pre-launch advertising and grand-opening promotions, accounting or operations consultants setting up your systems, rent on your space during build-out, and travel and utilities at the business location while you prepare to open.

There’s a line inside the investigatory bucket that matters. Costs you incur while evaluating whether to go into business, or which business to pursue, are startup expenditures. Costs you incur after making a firm decision to acquire a specific business shift into acquisition costs, which get added to the purchase price rather than treated as startup costs. Acquisition costs cannot be amortized under the startup rules; they become part of the basis of the business asset itself.

What Does Not Qualify

Several common early expenses look like startup costs but are handled elsewhere in the tax code. Getting these into the wrong bucket inflates your startup total and misapplies the deduction.

Capital assets. Equipment, vehicles, furniture, and real estate are recovered through depreciation over their assigned recovery periods, not through startup amortization.²
Inventory. Products bought for resale are capitalized and expensed as cost of goods sold when they actually sell.
Interest on debt. Loan interest paid during the startup period has its own deduction rules and is excluded from startup treatment.
Research and development. Section 174 requires amortization of research costs over five years for domestic research and 15 years for foreign research, on its own schedule separate from Section 195.³
Stock issuance costs. Commissions, professional fees, and printing expenses tied to selling corporate shares are not organizational costs and cannot be amortized.⁴

The $5,000 First-Year Deduction and 15-Year Amortization

In the tax year your business begins operating, you can deduct up to $5,000 of qualifying startup costs immediately. That deduction phases out dollar-for-dollar once your total startup expenses exceed $50,000. At $52,000 in startup costs, your immediate deduction drops to $3,000. At $55,000 or more, no immediate deduction is available and the entire amount has to be amortized.¹

Whatever isn’t deducted in year one is spread evenly over 180 months, starting in the month the business opens. A business with $15,000 in qualifying startup costs deducts $5,000 immediately and amortizes the remaining $10,000 at roughly $55.56 per month for 15 years. Only the months in the first tax year count toward that year’s amortization portion, so the first return usually shows a partial-year amount alongside the $5,000.

Organizational Costs Are a Separate Bucket

If you form a corporation, partnership, or multi-member LLC, the tax code treats the legal-formation expenses as their own category with their own $5,000 deduction. They are not added to your startup expenses.

For a corporation, organizational expenditures include drafting articles of incorporation and bylaws, fees for temporary directors, legal expenses of initial organizational meetings, and state incorporation filing fees.⁵ For a partnership or multi-member LLC taxed as a partnership, the qualifying expenses are legal fees for negotiating and drafting the partnership agreement, accounting fees related to organizing the partnership, and state filing fees.⁶ The same structure applies to both: up to $5,000 deductible in the first year, phase-out starting at $50,000 in total organizational costs, and the balance amortized over 180 months.⁷

Because the two buckets are separate, a new entity could deduct up to $10,000 in its first year: $5,000 in startup costs and $5,000 in organizational costs, assuming neither category crosses its phase-out threshold. Two exclusions to watch. Costs of issuing or selling corporate stock (underwriting fees, commissions, printing) are not organizational expenditures even when incurred at the same time.⁴ Partnership syndication fees, meaning the costs of promoting and selling partnership interests, are not deductible at all and cannot be amortized.

Sole proprietors and single-member LLCs don’t have organizational expenditures in this tax-code sense, because no separate entity is being formed for federal tax purposes. Their formation-related costs generally fold into their startup expenditures under the standard Section 195 rules.

How You Actually Claim It

The election to deduct and amortize is automatic. For the tax year your business begins operating, the IRS treats you as having already elected startup and organizational cost treatment, and no separate statement is required.⁸ You just report the deduction on your return.

If you’d rather capitalize all your startup costs and recover them only when you sell or close the business, you have to opt out affirmatively on a timely filed return, including extensions. Either choice is irrevocable and applies to every startup cost related to that business.⁸

Amortization is reported on IRS Form 4562, Part VI. Sole proprietors carry the deduction to Schedule C. Corporations report it on their corporate return. Partnerships pass it through to partners on Schedule K-1. The first-year immediate deduction and the partial-year amortization both appear on that same return.

If the Business Never Opens

Section 195 only applies once a business actually begins operating. If you abandon the plan before then, the treatment depends on how far along you were. Costs of exploring a general business concept, with no specific venture identified, are typically personal expenses and not deductible. Costs tied to a specific transaction entered into for profit, such as a signed letter of intent to buy a particular business that later falls through, may be deductible as a loss under Section 165.⁹

If a business does open and you begin amortizing, but you later sell or close before the 15-year schedule finishes, you can deduct the entire remaining unamortized balance as a loss in the year the business ends.

Records You Need From Day One

Start tracking expenses from the day you begin investigating the business, not the day you file formation paperwork. The IRS doesn’t require a particular format, but the file has to show what each expense was for, when it was paid, and that it relates to the business you ultimately launched. Receipts, invoices, bank statements, and mileage logs for site-selection travel are the core documents. Sort as you go into four categories: startup expenditures, organizational costs, capital asset purchases, and any R&D spending. Each flows to a different line on your return, and untangling them years later during an audit is the most expensive time to fix a mistake.

1
Office of the Law Revision Counsel. 26 USC 195 – Start-up Expenditures
2
Internal Revenue Service. Topic No. 704, Depreciation
3
Office of the Law Revision Counsel. 26 USC 174 – Amortization of Research and Experimental Expenditures
4
eCFR. 26 CFR 1.248-1 Election to Amortize Organizational Expenditures
5
Office of the Law Revision Counsel. 26 USC 248 – Organizational Expenditures
6
eCFR. 26 CFR 1.709-2 – Definitions
7
Office of the Law Revision Counsel. 26 USC 709 – Treatment of Organization and Syndication Fees
8
eCFR. 26 CFR 1.195-1 Election to Amortize Start-up Expenditures
9
Office of the Law Revision Counsel. 26 USC 165 – Losses