07/13/2026
One of the biggest misconceptions we hear from business owners is that if money leaves your bank account, it must be tax deductible.
Unfortunately, that's not always how the tax rules work.
Many of the tax questions we receive throughout the year come down to misunderstandings about what is—and isn't—a deductible business expense. Here are a few of the most common ones we see.
"If I use my vehicle for work, I can deduct the whole vehicle."
Not quite.
In most cases, only the business use of your vehicle is deductible. That means keeping track of your business mileage is incredibly important. Without knowing how many miles were driven for business versus personal use, it's difficult to accurately determine your deduction.
Waiting until tax season to estimate those miles often leads to inaccurate records and missed deductions. And yes, even if you dont take the mileage deduction for your vehicles, you should still be tracking business and personal miles.
"I made a big loan payment this year, so that should lower my taxes."
This surprises many business owners.
While making loan payments certainly affects your cash flow, the principal portion of a loan payment is not tax deductible. That's because you're simply paying back money you previously borrowed and you were not taxed on that money when you received the loan.
Sure, in many cases, the interest paid on a business loan is deductible, but repaying the principal is not.
This is one reason why taxable income and cash flow don't always move together. You may have less cash in the bank but still owe tax on your business profits.
"If I buy something for my business, it's automatically deductible."
Not necessarily.
Some purchases can be deducted immediately, while others must be depreciated over several years. The timing, type of asset, and how it's used all play a role in determining the tax treatment.
That's why it's often beneficial to discuss larger purchases before they're made rather than after the fact.
The tax code is full of rules like these that aren't always intuitive. Understanding them throughout the year can help you make better business decisions and avoid surprises when tax season arrives. The key? Cash Flow planning. What is your real cash flow? After tax?
It is about understanding how normal business decisions affect your taxes before you make them.
As always, please reach out to us with any questions you have about your situation by replying to this email or through our contact links.
All the best,