Business Deductions You Might Be Missing
Small business owners leave billions in unclaimed deductions on the table every year. Some deductions are well-known, but many legitimate write-offs fly under the radar — especially for freelancers and sole proprietors filing Schedule C.
The Obvious Ones (That Still Get Missed)
Even common deductions get overlooked when expense tracking is inconsistent:
- Office supplies: Pens, paper, printer ink, postage — small purchases add up fast
- Software subscriptions: Every tool you use for business counts — from Slack to Canva to your accounting software
- Professional services: Accountant fees, legal consultations, bookkeeping services
- Advertising: Website hosting, Google Ads, social media promotions, business cards
Home Office Deduction
If you use a dedicated space in your home regularly and exclusively for business, you qualify for the home office deduction. There are two methods:
Simplified Method
Deduct $5 per square foot of your home office, up to 300 square feet (maximum $1,500). No need to track actual expenses.
Regular Method
Calculate the percentage of your home used for business and apply that percentage to actual expenses — rent or mortgage interest, utilities, insurance, repairs, and depreciation. More work, but often a larger deduction.
Vehicle Expenses
If you use your car for business (client meetings, supply runs, bank trips), you can deduct vehicle expenses using one of two methods:
- Standard mileage rate: Multiply business miles driven by the IRS rate (67 cents per mile for 2026)
- Actual expense method: Track gas, maintenance, insurance, depreciation, and parking — then deduct the business-use percentage
Keep a mileage log either way. Apps can automate this, but even a simple spreadsheet works.
Health Insurance Premiums
Self-employed individuals can deduct 100% of health insurance premiums for themselves, their spouse, and dependents. This is an “above-the-line” deduction — you don’t need to itemize to claim it. It includes medical, dental, and qualifying long-term care insurance.
Retirement Contributions
Contributing to a retirement plan reduces your taxable income and builds long-term wealth. Options for self-employed individuals include:
- SEP-IRA: Contribute up to 25% of net self-employment income (max $69,000 for 2026)
- Solo 401(k): Both employee and employer contributions, with higher potential limits
- Traditional IRA: Up to $7,000 ($8,000 if over 50), fully deductible if you meet income limits
Education and Training
Courses, workshops, certifications, and books that improve skills related to your current business are deductible. This includes:
- Online courses and webinars
- Industry conferences and trade shows (plus travel to attend them)
- Professional certifications and licensing fees
- Business-related books and publications
Note: Education that qualifies you for a new career is generally not deductible.
Bank and Payment Processing Fees
Every fee your business pays to operate counts:
- Monthly bank account fees
- Credit card processing fees (Stripe, Square, PayPal)
- Wire transfer fees
- ATM fees for business withdrawals
These are easy to miss because they’re small and automatic — but they add up over a year.
Business Insurance
Premiums for business-related insurance policies are fully deductible:
- General liability insurance
- Professional liability (errors & omissions)
- Business property insurance
- Cyber liability insurance
Don’t Leave Money on the Table
The key to capturing every deduction is consistent, real-time expense tracking. When every transaction is categorized as it happens, nothing slips through the cracks. Tools like Numeroq automatically categorize expenses into IRS tax categories, so you always know exactly what you can deduct.
Review your expenses quarterly, and work with a tax professional at least once a year to make sure you’re not missing anything. The deductions you claim today directly reduce the taxes you pay tomorrow.