Business vs Personal Expenses: What Is the Basic Tax Rule?

Under general federal tax principles, a business expense must usually be both ordinary and necessary in carrying on a trade or business.

Does Having an LLC Make an Expense Deductible?

No. Forming an LLC does not create a separate category of tax deductions for personal expenses.

What Is a Mixed-Use Expense?

A mixed-use expense has both legitimate business use and personal use. Common examples include:

How Do You Divide Business and Personal Use?

There is no universal formula for every mixed-use expense. The appropriate allocation method depends on the property or service and the rules governing it.

Can You Deduct a Cellphone or Internet Service Used for Business?

A cellphone or internet connection used for both business and personal purposes is a common mixed-use situation. The taxpayer generally needs to evaluate the portion properly attributable to qualifying business use under the applicable rules.

Can You Deduct Clothing You Wear for Business?

Business usefulness is not the same as tax deductibility. Ordinary clothing suitable for general or everyday wear generally does not become deductible merely because it is:

What About Meals, Entertainment, and Personal Social Activities?

A business connection does not automatically make a meal or social activity deductible.

What About Business and Personal Travel?

Travel often combines business and personal activities. A single trip may include:

What About Vehicles Used for Business and Personal Driving?

Vehicles commonly have both business and personal use. Qualifying business transportation may potentially be deductible, but personal driving and other nondeductible use generally must be distinguished.

What About a Home Used for Both Business and Personal Purposes?

Home-office rules demonstrate why taxpayers should not apply a generic mixed-use percentage to every expense.

When Does a Business-Related Purchase Become a Capital Asset Instead of a Current Expense?

Another important distinction is between a currently deductible operating expense and an expenditure that must be capitalized or otherwise treated under property rules.

What Expenses Are Generally Personal?

Expenses that are generally personal, living, or family expenses may include:

When Should You Ask a Tax Professional Whether an Expense Is Business or Personal?

A conversation with a tax professional may be useful when:

Business Expense or Personal Expense? How to Tell the Difference for Tax Purposes

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