Understand startup and organizational costs for your new business. Learn how to deduct up to $5,000 immediately and amortize the rest over 15 years.

Bringing a new business to life involves numerous expenses before you even make your first sale, and how you handle these costs on your tax return is one of your first big financial decisions. You can't just write them all off in the first year. This article will guide you through the process of identifying qualifying startup expenses, calculating how much you can deduct immediately, and amortizing the rest over time.
The IRS makes an important distinction between the costs you incur to create the business entity (organizational costs) and the costs you incur to get it up and running (startup costs). Though often grouped together, understanding the difference is key because you can apply separate amortization and deduction rules to each category, giving you a larger potential first-year write-off.
Both types of costs must be incurred before your trade or business begins. Once you open your doors or start generating revenue, these expenses are generally considered regular operating expenses and can be deducted in the current year.
According to Internal Revenue Code (IRC) Section 195, startup costs are expenses paid or incurred for investigating the creation or acquisition of an active trade or business, or for creating an active trade or business. These are the costs that a similar, existing business would normally be able to deduct as ordinary operating expenses.
Think of them as the research and ramp-up costs. Examples include:
Organizational costs, covered under IRC Section 248 for corporations and Section 709 for partnerships, relate directly to the legal formation of your business entity. These are the formal steps required to bring the company into existence as a legal structure.
Common organizational costs include:
It's important to note that some costs do not qualify for amortization under these rules. These include costs related to acquiring capital (like syndication fees or commissions on stock sales) and costs of acquiring the assets of another business (these are capitalized and depreciated as part of the asset's cost).
For both startup costs and organizational costs, the IRS allows you to make an election to deduct a portion of the expenses in the first year and amortize the remaining balance. If you don't make this election, you cannot deduct any of the costs until the business is sold or liquidated.
Here's how the special election works for each category (startup and organizational):
This "all or nothing" feature—either elect to amortize or you can't deduct them at all until closure—makes tracking these costs and making a proper election on your first tax return critically important.
Figuring out your amortization can seem complicated because of the thresholds and phase-outs, but breaking it down into a repeatable process makes it a lot more manageable. Let's walk through it step-by-step, using startup costs as our example.
First, go through your records for the period before your business officially launched and tally up all the expenses that qualify as either startup or organizational costs. Carefully separate them into two lists to ensure you don't mistakenly lump them together, which could cause you to miscalculate the phase-out limit.
For example, a new consulting firm might have:
Next, determine your first-year deduction for each category. Look at the total for each list and apply the $5,000/$50,000 rule.
Your amortizable base is your total costs minus the first-year deduction you just calculated. For example, if your total startup costs are $40,000, your calculation would be:
Once you have the total amount to be amortized, divide it by 180 months. This gives you your monthly amortization expense that you will record for the next 15 years.
Monthly amortization = Total Amortizable Amount / 180
Continuing our example: $35,000 / 180 months = $194.44 per month.
If your business officially began on July 1st, you would be able to claim six months of amortization on your first tax return ($194.44 x 6 = $1,166.64).
For your bookkeeping records, amortization is recorded with a simple journal entry. You'll increase an expense account and increase a contra-asset account called Accumulated Amortization. This account works just like Accumulated Depreciation, reducing the book value of your capitalized costs over time.
Using the example above, the journal entry for each month would be:
This entry moves a portion of the capitalized cost from the balance sheet to the income statement, accurately reflecting the expense over its useful life.
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Making the election to deduct and amortize your startup and organizational costs is simpler than you might think. There isn't a box to check on your tax return. Instead, you make the election by simply taking the deduction and amortization on your first timely filed business tax return (including extensions).
The amortization is reported on Form 4562, Depreciation and Amortization, in Part VI. You'll list the description of costs (e.g., "Startup Costs"), the date amortization begins, the total amortizable amount, the IRC section (195 for startup, 248 or 709 for organizational), and the amortization period (180 months).
The IRS also requires you to attach a statement to your return detailing the costs. The statement should include:
Handling startup costs correctly from the beginning prevents issues down the road. Here are a few common mistakes to sidestep:
Properly amortizing your startup and organizational costs is a foundational step in your business's financial journey. By carefully categorizing your expenses, calculating the available first-year deduction based on IRS thresholds, and consistently amortizing the remainder over 180 months, you establish sound tax and accounting practices from Day One.
Of course, interpreting specific sections of the tax code like IRC Section 195 can still raise questions about what qualifies as an investigation-phase expense or when a business officially "begins." When nuanced questions come up, we designed Feather AI to help tax professionals get quick, citation-backed answers. You can ask questions in plain English and instantly receive summaries sourced directly from the IRC and IRS guidance, ensuring your advice is built on a solid, defensible foundation.
Written by Feather Team
Published on December 26, 2025