Running a small business comes with a long list of expenses, but the tax code offers valuable deductions to reduce your taxable income. Knowing which write-offs to claim can save you thousands of dollars each year. Below are the top 10 tax deductions for small business owners to consider for the 2026 tax year.
1. Home Office Deduction
If you use a portion of your home exclusively and regularly for business, you may qualify for the home office deduction. You can use the simplified method ($5 per square foot, up to 300 sq ft) or the regular method based on actual expenses like mortgage interest and utilities.
2. Vehicle Expenses
Business use of your car is deductible. You can choose the standard mileage rate (updated annually) or actual expenses such as fuel, repairs, and insurance. Keep a detailed log of business miles to substantiate your claim.
3. Health Insurance Premiums
Self-employed individuals can deduct 100% of their health insurance premiums for themselves, their spouse, and dependents, as long as the policy is not provided by another employer. This deduction reduces your adjusted gross income directly.
4. Retirement Plan Contributions
Contributions to SEP IRAs, Solo 401(k)s, or SIMPLE IRAs are deductible and lower your taxable income. For 2026, contribution limits remain generous, allowing you to save for retirement while cutting your tax bill.
5. Business Meals
Meals with clients, prospects, or employees for business purposes are 50% deductible. The expense must be ordinary and necessary, and you should document the date, amount, business purpose, and attendees.
6. Travel and Lodging
Business travel expenses — including airfare, hotels, rental cars, and 50% of meals during trips — are deductible. The trip must be primarily for business, and you must keep receipts and records of the business activities.
7. Equipment and Depreciation
Section 179 allows you to deduct the full purchase price of qualifying equipment and software in the year it is placed in service, rather than depreciating it over time. Bonus depreciation may also apply for certain assets.
8. Software and Subscriptions
Business software (accounting, CRM, project management) and subscriptions (industry publications, cloud services) are fully deductible as ordinary business expenses. This includes web hosting, domain fees, and SaaS tools.
9. Professional Services
Fees paid to lawyers, accountants, bookkeepers, and consultants are deductible if the services are directly related to your business. Legal fees for contracts, tax preparation, and business formation fall under this category.
10. Marketing and Advertising
All costs for promoting your business are deductible — from Google Ads and social media campaigns to printed flyers and website development. Even business cards and signage qualify as ordinary and necessary expenses.
Maximizing these deductions requires accurate record-keeping and a clear understanding of IRS rules. Always consult a qualified tax professional to ensure you claim every deduction you’re entitled to while staying compliant.