The dos and don'ts of writing off business travel when you're self-employed

If you're self-employed and planning to attend conferences, trade shows, or other events to support and grow your business, some of your travel expenses may qualify as tax deductions. But what happens when you want to combine a business trip with a vacation?

With the right planning, you may be able to enjoy some personal time while deducting eligible expenses associated with the business portion of your trip.

Let's say there's an expo in Florida. If you're already planning to attend, you might consider bringing your family along for a summer vacation. You get to attend the event, your family gets to spend time in Florida, and certain expenses related to your business activities may qualify for tax deductions.

The key is ensuring that your business travel expenses are ordinary and necessary for your line of work and that you can distinguish them from personal expenses.

Intuit TurboTax offers tips on what self-employed individuals should know about deducting business travel expenses when combining work trips with personal vacations.

What you can deduct

Transportation, accommodations, and meals

You can generally deduct registration fees, materials required to attend a qualifying business event, and eligible transportation expenses associated with the business portion of your trip. These may include round-trip airfare, car rentals, mileage when using your own vehicle, public transportation, and other transportation costs directly related to your business activities.

If your trip is primarily for business, lodging expenses for the business portion of your stay may also be deductible.

Business-related meals are generally deductible at 50% of the allowable cost. You can track your actual expenses or use the IRS standard meal allowance, commonly known as the per diem rate, which provides a daily allowance for meals and incidental expenses rather than lodging. The 50% limitation generally applies either way.

What you can't deduct

Family expenses, personal activities, and additional vacation days

If you're bringing family members along, their personal travel expenses generally aren't deductible. For example, if your family of four flies to a conference, you can typically deduct only your own qualifying business airfare, not the airfare for your spouse or children.

Expenses associated with family outings, sightseeing, recreational activities, or other activities unrelated to your business also aren't deductible.

You generally can't deduct expenses associated with additional vacation days beyond the business portion of your trip. For example, if you attend a three-day conference but extend your stay to spend four more days vacationing with your family, the lodging, meals, and other personal expenses associated with those additional days aren't deductible.

Entertainment expenses are generally nondeductible, even when they occur during a business trip.

One consideration when separating family-related expenses is lodging. If your hotel room would cost the same whether you traveled alone or brought your family, the eligible business lodging expense may still be deductible, provided the trip is primarily for business. However, if bringing family members increases the room rate, the additional personal expense isn't deductible.

Planning and recordkeeping

Combining business travel with personal time can be an opportunity to advance professionally while enjoying a vacation. However, careful planning and accurate recordkeeping are essential to claiming eligible deductions.

Make sure attending the event is ordinary and necessary for your trade or business. Travel expenses for conventions and conferences may be deductible for self-employed individuals, but you must be able to demonstrate that attending the event benefits your trade or business. Special rules apply to conventions held outside North America.

Keep detailed records of your business expenses. Save receipts, mileage logs, conference registration confirmations, event materials, and other documentation supporting the business purpose of your trip.

It's also important to separate expenses directly related to the conference or event from nondeductible personal and family expenses. Maintaining clear records can help you accurately determine which costs qualify for deductions and avoid claiming expenses that aren't eligible.

With thoughtful planning and proper documentation, a business trip can provide an opportunity to advance your business while enjoying some personal time.

This story was produced by Intuit TurboTax and reviewed and distributed by Stacker.