Startup Tax Deductions Every New Business Owner Should Know in 2026

IRC Section 195: Deducting Startup Costs

Under IRC Section 195, new businesses can immediately deduct up to $5,000 in startup costs in the year the business begins operations. This $5,000 allowance phases out dollar-for-dollar once total startup costs exceed $50,000, meaning it is completely eliminated at $55,000 in total costs. Any remaining startup costs must be amortized over 180 months (15 years) starting with the month the business begins.

Startup costs under Section 195 include expenses incurred before the business opens that would have been deductible as ordinary business expenses if the business were already operating. Common examples include market research and analysis, travel to evaluate potential business locations, advertising for the business opening, professional fees for setting up the entity (legal and accounting fees related to formation), and training costs for employees hired before launch.

The key distinction is between "startup costs" and "organizational costs." Organizational costs under IRC Section 248 (for corporations) or Section 709 (for partnerships) cover the legal and filing fees to create the entity itself, such as incorporation fees, state filing fees, and drafting of organizational documents. These have their own $5,000 immediate deduction with the same $50,000 phase-out, separate from the Section 195 deduction. A new business owner can potentially deduct up to $10,000 immediately: $5,000 in startup costs plus $5,000 in organizational costs.

Equipment and Technology Deductions

Section 179 of the IRC allows businesses to deduct the full purchase price of qualifying equipment and software in the year it is placed in service, rather than depreciating it over several years. For 2026, the Section 179 deduction limit is expected to be approximately $1,220,000 (adjusted annually for inflation), with a phase-out beginning at approximately $3,050,000 in total equipment purchases.

Qualifying property includes computers, monitors, and peripherals, office furniture, software (both off-the-shelf and certain custom development), phones and communication equipment, and certain leasehold improvements. For tech startups, the most relevant items are typically laptops, external displays, and business software subscriptions. Note that SaaS subscriptions are generally deducted as ordinary business expenses rather than under Section 179, since you are paying for access rather than purchasing an asset.

Bonus depreciation under IRC Section 168(k) provides an additional option. For property placed in service in 2026, the bonus depreciation rate is 60% (phasing down from 100% in 2022 by 20 percentage points per year). This applies to new and used property with a recovery period of 20 years or less. For startups purchasing significant equipment, the combination of Section 179 and bonus depreciation can generate substantial first-year deductions.

Home Office Deduction for Startup Founders

The home office deduction under IRC Section 280A allows business owners to deduct the portion of home expenses attributable to a dedicated workspace used regularly and exclusively for business. The IRS offers two methods: the simplified method, which provides $5 per square foot up to 300 square feet (maximum $1,500 deduction), and the regular method, which calculates actual expenses based on the percentage of your home used for business.

Under the regular method, deductible expenses include a proportional share of rent or mortgage interest, property taxes, utilities, homeowners insurance, and home repairs. If your home office occupies 15% of your home's total square footage and your annual housing costs are $36,000, the deduction would be $5,400. This is significantly more than the $1,500 maximum under the simplified method.

Important limitations: the home office must be used "regularly and exclusively" for business. A kitchen table where you also eat dinner does not qualify. A spare bedroom used solely as an office does. For C-Corp owners, the deduction mechanics differ from sole proprietors. The corporation can reimburse the founder for home office expenses under an accountable plan (IRC Section 62(a)(2)(A)), and the reimbursement is deductible by the corporation and not taxable to the founder. This requires documentation, including a written agreement between the founder and the corporation.

Vehicle, Travel, and Meal Deductions

Business vehicle expenses can be deducted using either the standard mileage rate (67 cents per mile for 2026, expected) or the actual expense method. The standard mileage rate is simpler but may understate the deduction for founders who drive expensive vehicles infrequently. Actual expenses include gas, insurance, registration, repairs, and depreciation, prorated by business use percentage. You must maintain a contemporaneous log of business miles, including the date, destination, business purpose, and miles driven. The IRS is known to disallow vehicle deductions when logs are inadequate.

Business travel expenses are deductible when the trip is primarily for business purposes. This includes airfare, hotels, car rentals, and meals while traveling. If a trip combines business and personal activities, only the business portion of transportation costs is deductible, but the lodging costs for business days (including arrival and departure days) are fully deductible.

Business meals are 50% deductible under IRC Section 274(k) when the meal has a clear business purpose and the taxpayer or an employee is present. The temporary 100% deduction for restaurant meals that applied in 2021 and 2022 has expired. Tips, tax, and delivery charges are included in the 50% deduction. Grocery purchases for office snacks are also 50% deductible as a de minimis fringe benefit. Entertainment expenses, including tickets to sporting events and concerts, remain nondeductible under the Tax Cuts and Jobs Act.

First-Year Tax Strategy for New Business Owners

The first year of business offers unique planning opportunities. Beyond the Section 195 and Section 248 immediate deductions, consider these strategies. First, establish a retirement plan before year-end. A Solo 401(k) allows contributions of up to $23,500 in employee deferrals plus 25% of net self-employment income (or W-2 salary for C-Corp owners), with a catch-up contribution of $7,500 for those age 50 and older. SEP-IRAs allow contributions of up to 25% of compensation, with a maximum of $69,000 for 2026.

Second, pay for health insurance through the business. C-Corp owners who are also employees can have the corporation pay for health insurance premiums as a deductible employee benefit. Sole proprietors and S-Corp shareholders can deduct health insurance premiums on their personal return as an adjustment to income under Section 162(l).

Third, time your expenses strategically. If your business starts mid-year, accelerating deductible expenses into the first tax year (such as prepaying rent, purchasing equipment, or paying annual software subscriptions) can maximize deductions against any first-year revenue. Conversely, if your first year will have minimal revenue, it may be better to defer expenses to a subsequent year when you have more income to offset.

At SpryTax, we work with new business owners to create a first-year tax plan that maximizes deductions while maintaining clean records for future fundraising or business growth.