The Most Overlooked Tax Deductions for Small Business Owners

When tax season rolls around, most business owners know the obvious deductions.

Software? Check.

Office supplies? Check.

Advertising? Check.

But what about all those smaller expenses you've paid throughout the year?

Some of the most overlooked tax deductions for small business owners are expenses you're already paying. You just might not realize they could qualify as business deductions.

And while we're definitely not suggesting you start writing off everything in sight, knowing what may qualify can help you keep better records, ask better questions at tax time, and potentially keep more of the money you've worked so hard to earn.

Let's look at a few deductions small business owners commonly miss.

1. Payment Processing Fees

Every time a client pays you through a credit card processor or payment platform, there's usually a fee attached.

Those little fees can add up quickly.

Payment processing and merchant fees associated with your business are generally deductible business expenses.

The important thing is to make sure you're accounting for them correctly.

For example, if you invoice a client for $1,000 but only receive $970 after processing fees, your revenue isn't necessarily $970. You may have $1,000 of revenue and a $30 processing fee expense.

Small difference. Much more accurate books.

2. Business Bank and Credit Card Fees

Speaking of tiny charges that add up...

Don't forget about your business banking fees.

Depending on your situation, deductible expenses may include things like:

• Monthly business account fees

• Business credit card annual fees

• Wire transfer fees

• Transaction fees

• Certain ATM fees

• Other banking fees associated with your business
  

A $10 fee here and a $20 fee there might not feel significant, but over an entire year, they can add up.

3. Professional Memberships and Subscriptions

Are you paying for an industry association, professional membership, or business-related subscription?

Some of these expenses may be deductible when they're directly related to your business.

Think about the recurring charges you've almost forgotten you're paying.

Industry memberships, professional organizations, business publications, and certain educational communities may all be worth reviewing.

Just make sure there's a clear business purpose behind the expense.

4. Education and Professional Development

Courses aren't just an investment in yourself. In certain situations, they may also be a business expense.

Education that maintains or improves skills you use in your existing business may qualify for a deduction.

That could include things like:

• Online courses

• Workshops

• Conferences

• Continuing education

• Industry-specific training

• Business books

• Educational subscriptions

  
  

There are rules around what qualifies, so don't assume every course you've ever purchased is automatically deductible.

But if you're regularly investing in education related to your current business, make sure you're tracking those expenses.

5. Business Mileage

Business mileage is one of those deductions that's easy to forget because the expense doesn't always show up clearly in your business bank account.

Driving to meet a client?

Heading to the post office to ship business packages?

Traveling between business locations?

Making a business-related supply run?

Those miles may qualify as business mileage.

Your normal commute between your home and regular workplace generally doesn't count, so it's important to understand the difference and maintain good mileage records.

And please don't wait until tax season to try to remember everywhere you drove eight months ago.

Future you will be very grateful for a mileage tracker.

6. Your Home Office

If you regularly and exclusively use part of your home for your business, you may qualify for a home office deduction.

Depending on your situation, this could allow you to deduct a portion of certain home-related expenses.

The key words here are regularly and exclusively.

Your kitchen table that you work from during the day and use for dinner at night generally isn't the same as having a dedicated space used exclusively for your business.

If you work from home, this is definitely one to discuss with your tax professional.

7. Business Use of Your Phone and Internet

Chances are, you use your phone and internet for your business constantly.

Client calls.

Emails.

Social media.

Zoom meetings.

Research.

Sending invoices.

The list goes on.

If you use a personal phone or internet plan for both business and personal purposes, the business-use portion may be deductible.

That doesn't mean your entire family cell phone plan suddenly becomes a business expense.

Instead, you'll want to determine and document a reasonable business-use percentage.

8. Accounting and Legal Fees

Yes, paying someone to help with your business finances can itself be a business expense.

Professional fees related to running your business may be deductible, including services from:

• Bookkeepers

• Accountants

• Tax professionals

• Attorneys

• Business consultants
  

These are easy deductions to overlook, especially when you're focused on tracking physical purchases rather than professional services.

9. Business Insurance

Insurance isn't exactly the most exciting business expense, but depending on the policy, premiums for business-related insurance may be deductible.

That can include things like:

• General liability insurance

• Professional liability insurance

• Cyber liability coverage

• Commercial property insurance

• Other business-specific policies
  

If you're paying for insurance specifically because of your business, make sure it isn't getting lost in the shuffle.

10. Small Business Supplies You Forget About

Not every deduction is a $2,000 laptop.

Sometimes it's the $15 purchase you made on the way to a client meeting.

Postage.

Printer ink.

Shipping supplies.

Notebooks.

Packaging.

Business cards.

Small equipment.

These purchases might not feel significant individually, but that's exactly why they're easy to forget.

If it's an ordinary and necessary expense for your business, keep the receipt and get it into your books.

11. Contractors and Freelancers

Did you hire someone to design your website?

Edit a video?

Write copy?

Help with administrative work?

Take brand photos?

Professional services provided by independent contractors can generally be deducted as a business expense when they're related to your business.

Just remember that hiring contractors can also create additional tax reporting responsibilities, including potentially issuing Form 1099-NEC.

Good bookkeeping throughout the year makes this process much easier when January arrives.

12. Advertising and Marketing Expenses

You probably remember your Facebook or Google ads.

But marketing expenses go far beyond paid ads.

Depending on your business, deductible marketing expenses might include:

• Website hosting

• Email marketing software

• Graphic design

• Printed marketing materials

• Business cards

• Promotional materials

• Photography for your business

• Sponsorships that qualify as advertising

• Social media management

• SEO services
  

Marketing is often spread across several different platforms and vendors, which makes it easy for some of these expenses to get overlooked.

The Real Problem Isn't Knowing Every Possible Deduction

Here's what we really want business owners to understand:

Finding tax deductions shouldn't be a scavenger hunt you do once a year.

If your books are organized throughout the year, your expenses are already being tracked and categorized as they happen.

That means you're not digging through emails, credit card statements, and random receipts in March trying to remember whether that $247 charge from last June was business or personal.

Your bookkeeping creates the paper trail.

And that makes it much easier for your tax professional to determine what actually qualifies.

If you want even more ideas, check out 6 Surprising Business Expenses You Can Deduct at Tax Time for a few expenses you may not have considered.

Don't Forget: Not Everything Is a Write-Off

We also need to talk about the other side of this.

Owning a business doesn't magically turn every purchase into a tax deduction.

Personal expenses generally aren't deductible simply because you own a business, and there are specific rules around expenses like entertainment, clothing, commuting, and charitable contributions.

If you're unsure where the line is, read What Is NOT Tax Deductible for Your Business? next.

And when you're unsure whether a particular expense qualifies, ask your tax professional. Your individual tax situation and business structure matter.

The Bottom Line

The most overlooked tax deductions for small business owners aren't necessarily secret tax loopholes.

They're often normal business expenses that simply weren't tracked properly.

Bank fees. Mileage. Professional development. Payment processing fees. Business subscriptions. Marketing costs.

Individually, they may not seem like much.

Together, they can make a difference.

Instead of waiting until tax season to figure out what you spent, create a system for tracking your expenses throughout the year.

Because the goal isn't to find questionable ways to lower your tax bill.

It's to make sure you're taking advantage of the legitimate deductions your business already has.

Keep More of What You Earn

Want to feel more confident about what you're categorizing throughout the year?

That's exactly why we created BYOB+ (Be Your Own Bookkeeper+).

Inside, you'll get ongoing bookkeeping support, monthly checklists and reminders, helpful resources, and a place to ask those "Okay, but where does THIS go?" questions when they actually come up.

Because good bookkeeping isn't just about staying organized. It's about having clean, accurate numbers so you're ready when tax season rolls around. P.S. If you’re not already on our email list, now’s the perfect time to join. You’ll get easy, practical tips delivered straight to your inbox, so managing your business finances feels way less overwhelming (and dare we say, empowering).