Personal vs. Business Expenses: What's Deductible?

When you’re running a business, it’s important to understand the difference between business expenses and personal expenses. Keeping these expenses separate is crucial for proper accounting, tax deductions, and maintaining financial clarity. In this article, we’ll explain the concept of business expenses versus personal expenses and provide useful tips for keeping them organized.

Separating Business and Personal Expenses

To ensure a clear distinction between your business and personal finances, it’s essential to have separate bank accounts and credit cards. While it may seem convenient to use your personal accounts for business transactions, commingling funds can create complications and raise red flags with tax authorities. By maintaining separate accounts, you’ll have a better understanding of what expenses are deductible for your business, making tax time much easier and reducing the risk of mistakes.

What are business expenses?

According to the IRS, business expenses are considered “ordinary and necessary” expenses incurred in the course of running your business. These expenses are typically tax-deductible for LLCs and other business structures, meaning you can write them off when calculating your business taxes. 

Common examples of business expenses include office rent, employee salaries, utilities, supplies, advertising costs, professional service fees, and travel expenses directly related to business activities. By keeping track of these expenses, you can reduce your taxable income and potentially save money on taxes.

Home, Auto, and Shared Expenses

If you use your home or vehicle for both personal and business purposes, it’s important to allocate the appropriate portion for each use. The IRS allows you to deduct the portion that is used for business. For example, if you use 20% of your home exclusively as a dedicated office space, you can deduct 20% of your rent or mortgage interest, utilities, and maintenance costs.

Similarly, if you use your vehicle for business-related travel, you can deduct the portion of expenses that relate to business mileage. Keeping accurate records and documenting the business use of these shared expenses is crucial for maximizing your deductions. See business-related travel definition.

Hobby vs. Business

Sometimes, people engage in activities that they may consider businesses, but the IRS classifies them as hobbies. It’s important to understand the criteria the IRS uses to determine whether an activity qualifies as a business or a hobby. The IRS looks at factors such as the intention to make a profit, the level of effort and activity, and the consistency of income generation.

If the IRS determines that your activity is a hobby, you won’t be able to deduct related expenses as business expenses. Understanding the distinction can help you avoid potential pitfalls and ensure that you follow the proper guidelines.
Curious about potential tax write-offs you can take? Check out our tax write-off guide.