Travel expenses are the costs you incur when you travel away from your regular place of work for business purposes. They include airfare, hotels, meals, rental cars, taxis, tips, and similar costs tied to a work trip. For tax purposes, these expenses can be deductible if you’re self-employed or if you’re a business owner, and they’re a major category of business write-offs that the IRS watches closely.
What Counts as a Travel Expense
The IRS draws a clear line: a travel expense must be “ordinary and necessary” for your business, and you must be traveling away from your “tax home,” which is generally the city or area where your main place of business is located. If you’re just commuting to your regular office, that’s not a travel expense. But if you fly to another city for a client meeting and stay overnight, the costs associated with that trip qualify.
The main categories of deductible travel expenses include:
- Transportation: Flights, trains, buses, and the cost of driving your own car to and from a business destination.
- Lodging: Hotel or other accommodation costs for nights you need to stay away from home.
- Meals: Food costs while traveling, though the deductible percentage has varied over the years and currently sits at 50% for most business meals.
- Local transportation: Taxis, rideshares, rental cars, and public transit at your destination.
- Incidentals: Tips for service staff, dry cleaning, laundry, and similar small costs that come with being on the road.
- Business communication: Phone calls, internet access, and fax charges needed for work while traveling.
If you rent a car, you can only deduct the business-use portion. And the IRS specifically prohibits deducting expenses that are “lavish or extravagant,” even if they’re technically business-related. A reasonable hotel is fine. A penthouse suite for a one-day meeting is not.
Who Can Deduct Travel Expenses
Self-employed individuals and business owners can deduct travel expenses directly on their tax returns. If you’re a freelancer, independent contractor, or sole proprietor, you report these costs on Schedule C. Partnerships and corporations deduct them as business expenses on their respective returns.
W-2 employees are in a different position. Since the 2017 tax law changes, most employees cannot deduct unreimbursed business travel on their federal tax return. If your employer reimburses you through what’s called an “accountable plan” (where you submit receipts and return any excess reimbursement), that money isn’t taxable income to you, and the employer takes the deduction. If your employer doesn’t reimburse you, those costs generally come out of your own pocket with no federal tax benefit.
How Per Diem Rates Work
Instead of tracking every meal receipt and hotel bill, some businesses use per diem rates, which are flat daily allowances for lodging, meals, and incidentals. The General Services Administration sets these rates for locations within the continental United States. A standard rate applies to most areas, while roughly 300 higher-cost locations get their own rates.
Per diem was originally designed for federal employees on official travel, but private employers and self-employed individuals can also use these rates. The reimbursement is based on where the work happens, not necessarily where you stay. For self-employed people, per diem simplifies record-keeping: instead of saving every lunch receipt, you use the published daily meal and incidental rate for the city you visited. You still need to document the business purpose, dates, and location of the trip.
Mixing Business and Personal Travel
Many trips involve both work and leisure, and the IRS has specific rules for how to handle the split. The rules differ depending on whether you’re traveling within the United States or internationally.
Domestic Trips
If the primary purpose of a U.S. trip is business and you tack on a few personal days, you can still deduct the full cost of getting to and from the destination (your flight or train ticket, for instance). However, you can only deduct expenses for the business days themselves. Hotel nights, meals, and other costs during the personal portion are not deductible. If the trip is primarily personal, like a vacation where you happen to take one meeting, the transportation costs are entirely nondeductible. You could still write off the direct costs of that one business meeting, but nothing else.
International Trips
International travel gets a stricter treatment. If your trip abroad was primarily for business, you must allocate your round-trip transportation costs between business and nonbusiness days. The deductible portion equals your business days divided by total days of travel. So if you spend 7 days on business and 3 on sightseeing during a 10-day international trip, you can deduct 70% of your airfare.
There are four exceptions where you can deduct the full transportation cost of an international trip without allocating:
- No substantial control over the trip: This applies if you’re an employee who was reimbursed, you’re not related to the employer, and you’re not a managing executive.
- Gone a week or less: If you were outside the U.S. for seven consecutive days or fewer (not counting the departure day, but counting the return day), no allocation is needed.
- Less than 25% personal time: If you spent less than 25% of your total time abroad on nonbusiness activities, the full trip qualifies as business travel.
- Vacation wasn’t a major consideration: If you can demonstrate the personal element wasn’t a significant factor in planning the trip.
When counting business days for international trips, travel days to and from your destination count as business days. So do weekends and holidays that fall between business days, as long as it would have been impractical to return home.
Record-Keeping Requirements
The IRS expects you to document four things for every travel expense: the amount, the date, the place, and the business purpose. A credit card statement alone isn’t enough. You need receipts that show what you paid and what you paid for, along with a record of why the trip was business-related.
Keep receipts for lodging regardless of amount. For other expenses, the IRS generally requires a receipt for anything $75 or more, though maintaining receipts for smaller amounts is still smart practice. A simple travel log or spreadsheet that records each day’s expenses, the business activity, and who you met with will go a long way if you’re ever audited. Many people use expense-tracking apps that let you photograph receipts on the spot, which solves the crumpled-receipt-in-a-jacket-pocket problem.
If your employer reimburses you, the company’s accountable plan will typically require you to submit an expense report with supporting receipts within a reasonable time frame. Reimbursements under an accountable plan don’t show up as income on your W-2, so keeping clean records protects both you and your employer.
Travel Expenses for Different Work Situations
How travel expenses apply to you depends heavily on your work arrangement. A self-employed consultant who flies to a client site deducts the trip on their own return. A small business owner attending an industry conference does the same. In both cases, the expense directly reduces taxable income.
If you work from home and your home is your principal place of business, trips to meet clients or attend professional events away from your metro area generally qualify. But if you have a regular office and simply choose to work remotely sometimes, the rules around your tax home can get more complicated.
For gig workers and independent contractors, travel to temporary work locations (as opposed to your regular work area) is typically deductible. The key distinction is temporary versus indefinite: if you’re assigned to a location for more than a year, the IRS generally treats it as your new tax home, and travel costs to get there stop being deductible.