As a small business owner, you probably already know the standard deductions: office supplies, equipment, and employee salaries. But there’s a whole world of legitimate tax deductions that entrepreneurs overlook year after year. Plenty of owners leave money on the table because they don’t know these write-offs exist, or because they don’t keep the records needed to claim them.
Let’s go through the deductions that could reduce your tax bill for the 2026 tax year, including a few changes that took effect this year. Whether you run a shop in Fresno or drive to job sites across the Valley, most of these apply.
Home Office Deductions: More Than Just a Desk
Many small business owners who work from home either skip the home office deduction entirely or don’t get the most out of it. To qualify, part of your home has to be used regularly and exclusively for business, and it has to be your principal place of business or a place where you regularly meet clients or customers in the normal course of business. If you qualify, you can deduct a portion of your rent or mortgage interest, utilities, internet, and even home repairs.
What you can deduct:
- A percentage of your rent or mortgage interest based on square footage
- Utilities including electricity, heat, and water
- Home internet service (business portion)
- Renters or homeowners insurance
- Property taxes
- Home maintenance and repairs
The simplified method lets you deduct $5 per square foot for up to 300 square feet, a maximum of $1,500. Calculating actual expenses takes more recordkeeping but can produce a larger deduction. You pick the method each year on your return.
If you’ve incorporated (for example, as an S corp), home office costs are usually reimbursed through an accountable plan rather than claimed on your personal return.
Business Meals: What’s Still Deductible, and What Changed in 2026
Business meals with clients or prospects, and meals while traveling for business, are generally 50% deductible. The meal can’t be lavish or extravagant, you or an employee has to be present, and you need records of who attended and the business purpose.
Deductible meal scenarios:
- Meals with clients or potential clients where business is discussed
- Meals during business travel
New for 2026: meals you provide to employees. Starting with amounts paid or incurred after 2025, employers can no longer deduct food and beverages provided to employees through an eating facility that meets the de minimis fringe benefit rules, or meals provided for the employer’s convenience. The 50% deduction that applied through 2025 is gone, apart from limited exceptions for certain industries and for restaurants. If you stock the break room or regularly buy meals for staff who work late, those costs likely aren’t deductible anymore. Team meals during meetings depend on the facts, so ask us before you count them.
Keep detailed records including who attended, the business purpose, and where it took place. A quick photo of the receipt with a note can save you headaches at tax time.
Professional Development and Education
Investing in yourself and your team isn’t just good business. It’s tax deductible, and many entrepreneurs don’t realize how broadly this category extends.
What qualifies:
- Industry conferences and seminars
- Online courses and certifications
- Professional books and subscriptions
- Business coaching and consulting
- Workshops and training programs
The key is that the education must maintain or improve skills required in your current business. You can’t deduct education that qualifies you for a new trade or business.
Vehicle Expenses: Choose Your Method Wisely
If you use your vehicle for business, you have two ways to figure the deduction. For 2026 the IRS business standard mileage rate is 72.5 cents per mile for miles driven January 1 through June 30 and 76 cents per mile for miles driven July 1 through December 31. The IRS raised the rate mid-year because of higher fuel prices. Tracking actual expenses might give you a larger deduction, depending on your situation.
Actual expense method includes:
- Gas and oil
- Insurance
- Registration fees
- Repairs and maintenance
- Depreciation
- Lease payments
- Parking fees and tolls
Whichever method you choose, careful recordkeeping is essential. This year especially, log the date of each business trip, not just the total miles, so the right rate goes on each half of the year. A mileage-tracking app makes that easy, whether you’re driving between Fresno and Clovis or out to clients across the county.
Software and Subscriptions
In today’s digital business environment, software costs add up quickly. Subscription software is generally deductible as an ordinary business expense. Software you buy outright may instead be depreciated or expensed (see Section 179 below).
Common deductible subscriptions:
- Accounting software (QuickBooks, Xero, FreshBooks)
- Customer relationship management (CRM) tools
- Project management platforms
- Email marketing services
- Cloud storage (Dropbox, Google Workspace)
- Industry-specific software
- Stock photo subscriptions
Even a $10 monthly subscription adds up to $120 of deductible expense over a year.
Equipment: Section 179 and Bonus Depreciation
This is one of the biggest opportunities for 2026. For tax years beginning in 2026, Section 179 lets you expense up to $2,560,000 of qualifying equipment. That limit is reduced dollar for dollar once the total cost of Section 179 property you place in service during the year exceeds $4,090,000, and SUVs are capped at $32,000.
Separately, 100% bonus depreciation is now permanent for qualifying property acquired after January 19, 2025. Either way, the asset has to be placed in service during the year, not just ordered or paid for.
California doesn’t follow federal bonus depreciation or the enhanced federal Section 179 limits, so your state deduction can be much smaller than your federal one. For more on choosing between the two, and how California treats them, see Section 179 vs. bonus depreciation.
The Qualified Business Income (QBI) Deduction
If you own a pass-through business (a sole proprietorship, partnership, or S corporation), you may be able to deduct up to 20% of your qualified business income. For 2026, limits start to apply once taxable income is above $201,750 ($403,500 for married filing jointly) and are fully phased in at $276,750 ($553,500 married filing jointly). New for 2026, owners with at least $1,000 of QBI from a business they actively run (materially participate in) get a minimum deduction of $400.
How you pay yourself affects this deduction. S corp wages don’t count as QBI, which is one reason entity choice matters. See S corp vs. LLC.
Retirement Contributions
Many small business owners focus so heavily on growing the business that they overlook retirement planning. But retirement plan contributions offer some of the most powerful tax advantages available.
2026 options for small business owners:
- SEP-IRA: Up to 25% of compensation, capped at $72,000 for 2026. For self-employed owners, “compensation” means net earnings after the deduction for half of self-employment tax and the contribution itself, so the effective rate is lower than 25%.
- Solo 401(k): Up to $24,500 in employee deferrals and up to $72,000 total with employer contributions, plus a catch-up of $8,000 at age 50+ ($11,250 at ages 60–63).
- SIMPLE IRA: Good for businesses with employees. Employees can defer up to $17,000 in 2026 ($18,100 in certain plans), plus a $4,000 catch-up at 50+ ($5,250 at ages 60–63).
- Traditional IRA: Up to $7,500 ($8,600 if age 50+). If you or your spouse is covered by a workplace plan, the deduction phases out at higher incomes.
These contributions reduce your taxable income while building your financial future. For a side-by-side comparison of SEP, SIMPLE, Solo 401(k) and cash balance plans, see our guide to retirement plan options.
Health Insurance Premiums
If you’re self-employed and pay for your own health insurance, you can generally deduct the premiums for yourself, your spouse, and your dependents. This is an above-the-line deduction, so you don’t need to itemize to claim it. There are two limits: the deduction depends on having net earnings from the business, and you can’t take it for any month you were eligible for an employer-subsidized health plan (including through your spouse’s employer).
What’s covered:
- Medical insurance premiums
- Dental insurance premiums
- Long-term care insurance, up to an age-based limit per person. For 2026: $500 (age 40 or under), $930 (41–50), $1,860 (51–60), $4,960 (61–70), $6,200 (over 70)
- Medicare premiums you pay voluntarily for coverage in your name, if you’re self-employed
Bad Debts
If a client never pays their invoice, you might be able to deduct that loss. For accrual-basis taxpayers, bad debts from services rendered can be written off when they become uncollectible. If you’re on the cash method, an unpaid invoice isn’t deductible, because you never reported it as income. Not sure which method you use? See cash vs. accrual accounting.
Document your collection efforts. Demand letters, emails, and other attempts to collect all strengthen your case for this deduction.
Bank Fees and Credit Card Interest
Every bank fee, transaction charge, and credit card processing fee related to your business is deductible. If you carry a balance on a business credit card, the interest is also deductible.
Marketing and Advertising Expenses
Everything you spend to promote your business is deductible, and this category is broader than many realize.
Deductible marketing expenses:
- Social media advertising
- Google Ads and other PPC campaigns
- Website design and hosting
- Business cards and printed materials
- Promotional products and giveaways
- Sponsorships of local events
- Content creation costs
A 2026 Recordkeeping Change: The 1099 Threshold
For payments made after December 31, 2025, you issue Form 1099-NEC to a contractor only when you pay them $2,000 or more in a year (it used to be $600). Keep a W-9 on file for every contractor anyway. For setting up expense categories that make this easy, see how to categorize receipts for taxes.
Don’t Leave Money on the Table
Tax deductions are essentially discounts on your business expenses. Missing legitimate deductions means paying more tax than necessary. The key to getting the most from your deductions is keeping organized records throughout the year, not scrambling at tax time.
At Harlan Willow, we help Fresno small business owners identify every deduction they’re entitled to while staying fully compliant with tax law. With our business tax planning, we look for these opportunities throughout the year, and our business tax preparation makes sure they end up on your return.
Ready to make sure you’re not missing valuable deductions? Contact Harlan Willow for a free consultation or call 559-372-9213. We’ll review your business expenses and help you build a strategy to lower your tax bill while keeping you fully compliant.
This post is general information, not advice for your specific situation. Tax figures are current for the year stated and many are indexed annually. Talk to a CPA before acting on any of it.
