Business startup tax deductions: Eligible first-year costs

Launching a new business often means spending money before officially operating. For tax purposes, business startup tax deductions apply to money you spend before your business officially opens, while regular write-offs apply to expenses you claim after. Publication 583 from the Internal Revenue Service (IRS) covers federal tax information for people starting a business and includes guidance on keeping records.¹

How a cost is treated can depend on the business structure and when operations start. The IRS also expects documents to support expenses or losses you deduct. Let’s look at a few common starting a business tax deductions topics, and how they’re typically grouped for tax purposes.

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Startup deductions vs. regular business deductions

To count as a deductible expense, the IRS generally requires it to be both “ordinary” and “necessary.” An ordinary expense is common and accepted in a particular trade or business, while a necessary expense is helpful and appropriate for running the business.³

From there, timing becomes the big difference. Costs you incur before your business is officially up and running go into the “startup” category. Publication 583 explains that some startup and organizational costs may get special treatment, with options to deduct part of them right away or spread the rest out over time.²

Once the business is actively operating, many day-to-day costs are more likely to be treated as operating expenses, rather than startup costs.

Because the line between “pre-opening” and “operating” can depend on the circumstances, it helps to keep receipts and short notes about what each cost was for. That record trail also supports starting a business tax deductions if questions come up later.

Startup and organizational costs you may be able to claim

Some of the most valuable deductions for new businesses come from the costs of setting up and preparing to launch.

Business formation and organizational costs

Setting up a business can involve one-time costs that pop up before the day-to-day work begins. Common examples include legal or accounting help used to form the entity, state filing fees, and work tied to setting up a partnership or corporation, such as drafting formation documents or registering with the state.

The Internal Revenue Service (IRS) has a special rule for organizational costs. You can choose to deduct up to $5,000 of qualifying organizational costs. If your total organizational costs are higher than a certain limit, that $5,000 deduction is reduced. Any remaining eligible amount is typically spread out over time through amortization.¹

Startup research and pre-opening costs

Before businesses officially open, startups often allocate funds to test their business model. That can include market research, feasibility studies, early advertising, recruiting and training staff, and travel to meet suppliers or set up key services.

For reporting depreciation and amortization, the IRS instructions for Form 4562 show how to handle these amounts on your tax forms.⁴ Keeping receipts and a quick note on what each cost was for makes it easier to sort expenses later and support starting a business tax deductions if questions come up.

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Common business tax write-offs once you’re operating

Once a business is actively running, many costs that were once considered “startup” expenses become everyday operating expenses. These business tax write-offs usually cover what it takes to serve customers and keep the business moving.

As mentioned, the IRS requires that an expense generally needs to be both ordinary and necessary. Ordinary means it’s common and accepted in the industry, and necessary means it’s helpful and appropriate for the business.³ Common examples can include:

• Rent or coworking fees

• Utilities

• Business insurance

• Software subscriptions

• Office supplies

• Website costs

• Marketing and ads

• Professional services

Even when an expense feels routine, it still needs a paper trail. The IRS notes you need documents to support expenses or losses you want to deduct.² It can help to treat each business expense tax write-off like a mini story, with a receipt and a quick note about the business purpose.

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Business equipment and assets: what you can write off

Once a business starts operating, some purchases are simple running costs, while others are “assets” you use over time, like equipment or furniture. How they’re treated often comes down to what you bought, how long you’ll use it, and when it’s first used for the business.

Depreciation basics for equipment

Big-ticket items such as computers, machinery, office furniture, and some software are often treated as business property because they last more than a single year. In those cases, the cost is typically recovered over more than one tax year, using depreciation.⁶

A helpful way to think about it: instead of claiming the full cost at once, depreciation spreads it out across the years the item is expected to be useful.⁶

Depreciation generally starts the year an item is “placed in service.” That means when it’s ready and available to do its job.⁷

Section 179 deduction

In some situations, Section 179 may let a business deduct the cost of certain assets sooner, rather than spreading it out over several years. The IRS describes it as an option to write off a limited amount of qualifying property in the year you start using it, as long as you meet certain eligibility rules and limits.⁵

For context, Form 4562 is where you report depreciation and amortization and where you make the Section 179 election if you choose to.⁴

Here are some examples below to help understand what gets treated as an asset or an operating expense:

Recordkeeping and timing basics

Good records make deductions easier to support later. The IRS says you need documents to show the expenses or losses you want to deduct. Keep receipts and invoices, add a short note about the business purpose, and track dates and payment methods.

Separating personal and business spending also makes it easier to sort startup costs from operating expenses when you review a business expenses tax write-off. Publication 583 is a helpful next stop because it covers basic federal tax information for people starting a business and how to keep records. If a startup invoices an overseas customer, Wise Business International Business Payments can make it easier to get paid using local details in supported currencies.

Common mistakes to avoid when claiming startup deductions

A few common mix-ups can make startup deductions harder to support later:

• Deducting personal expenses that aren’t tied to the business

• Mixing pre-opening startup costs with operating expenses after the business begins

• Forgetting some startup and organizational costs may need to be spread out over time through amortization, rather than being deducted all at once.

• Keeping incomplete records, even when the expense itself is legitimate. The IRS expects documents to support what’s deducted.

• Treating a major equipment purchase like a simple supply expense, when it may be an asset that’s depreciated or handled under a different rule.

Startup deductions usually come down to two things: classifying costs based on timing and purpose, and keeping clean documentation in case questions come up. IRS resources like Publication 583 are a solid baseline for understanding how startup costs, operating expenses, and recordkeeping typically work.

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Sources:

1. Publication 583 | IRS

2. Credits and deductions for businesses | IRS

3. Publication 535 Glossary term | IRS

4. About form 4562 | IRS

5. International Business Payments | Wise

6. Publication 583 (12/2024), Starting a Business and Keeping Records | IRS

7. Internal Revenue Bulletin: 2024-52 | IRS

8. Receive Money | Wise