Tax Deductions Every Small Business Owner Should Know About

May 30, 2025

Maximize your write-offs and minimize your tax bill with this essential list of deductions for freelancers, startups, and small businesses.

One of the best ways to reduce your business’s taxable income is to take advantage of legal deductions. The tax code can be intimidating, but missing out on deductions means leaving money on the table.

Here are the most valuable small business tax deductions you should track and claim.


🏠 1. Home Office Deduction

If you work from home, you may be eligible to deduct part of your rent, utilities, internet, and insurance.

  • Must be a dedicated workspace
  • Use simplified method ($5 per sq. ft) or actual expenses


🚗 2. Vehicle Expenses

Use your personal car for business purposes?

  • Deduct either the standard mileage rate or actual expenses.
  • Keep a detailed mileage log (apps like MileIQ help).


📦 3. Office Supplies & Equipment

From pens and printers to laptops and monitors, most work-related purchases are deductible.

  • For equipment over $2,500, consider Section 179 depreciation.


📣 4. Marketing & Advertising

Every dollar spent on promoting your business — whether Facebook ads or business cards — is fully deductible.

  • Includes: website hosting, graphic design, software tools


🧑‍💼 5. Professional Services

Fees paid to lawyers, accountants, consultants, or virtual assistants are 100% deductible as business services.


📚 6. Education & Training

Courses, books, or workshops that improve your business skills can be written off as professional development.


💳 Pro Tip: Use a Business Credit Card

  • Keeps expenses organized
  • Easier to track deductions
  • Avoids mixing personal and business purchases


📁 Best Practices for Claiming Deductions

  • Keep digital copies of receipts
  • Log expenses in your accounting system as they happen
  • Categorize everything properly for easy year-end reporting


Knowing what tax deductions you’re entitled to can make a huge difference in your bottom line. By staying organized year-round and tracking eligible expenses properly, you can legally lower your tax bill and reinvest those savings back into your business. Don’t wait until tax season — start documenting deductions now, use bookkeeping software to simplify the process, and consider working with a tax pro to maximize your return.


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