To charge for travel time, pick one of five billing methods — a full hourly rate, a reduced hourly rate (commonly 50% of your standard fee), a flat fee per trip, mileage reimbursement at the IRS standard rate, or a hybrid — write the method and rate into your contract before work begins, and track every segment with time and mileage records. The reduced hourly rate is the most widely accepted compromise, and for vehicle costs the 2026 IRS standard mileage rate is 72.5 cents per mile.
The Five Ways Professionals Bill for Travel
Almost every travel-billing arrangement fits one of these five structures. The right choice depends on how far you go, how price-sensitive your clients are, and whether you’re mostly compensating for time or for vehicle costs.
Full hourly rate. Every minute in transit is billed at the same rate as active work. It’s simple, but corporate clients increasingly push back on paying full price for time they view as less productive.
Reduced hourly rate. A lower figure applied strictly to transit. Fifty percent of the standard rate is the most common compromise and aligns with guidance from organizations like the Claims and Litigation Management Alliance.
Flat fee per trip. A set dollar amount regardless of actual duration. Invoicing gets simpler and the client is shielded from traffic surprises, but you have to estimate accurately or you’ll undercharge.
Mileage-based reimbursement. Miles driven multiplied by a per-mile figure, usually the IRS standard rate. This works when the client is mainly covering vehicle costs rather than your time.
Hybrid. Some combination of the above. A consultant might charge a reduced hourly rate for time plus mileage for the vehicle, covering both the opportunity cost and the wear on the car.
Setting the Rate
For mileage, the IRS standard mileage rate for 2026 is 72.5 cents per mile for business use. That single figure is designed to cover fuel, depreciation, insurance, and maintenance. You can calculate actual vehicle costs instead, but most professionals find the standard rate easier to justify on an invoice because the IRS has already blessed it as reasonable.
For time-based charges, set the travel rate as a percentage of your regular fee. If you bill $150 per hour for active work, a 50% travel rate is $75 per hour in transit. That gives you real compensation for dead time without making the client feel they’re paying full freight for a car ride. Adjust the percentage based on how far you typically travel and how price-sensitive your clients are. Some professionals charge a higher percentage for travel beyond a defined radius and waive travel charges entirely inside a local zone.
Round-Trip or One-Way, and Splitting Between Clients
Settle the return trip question first. Office-to-office billing is the cleanest model: charge only for travel from your office to the client’s location and back, and exclude your personal commute. If your home-to-office drive is 45 minutes and the office-to-client drive is 30 minutes, only the 30-minute segments are billable.
When a single trip serves multiple clients, split the connecting travel proportionally. If you fly from your home city to Client A, then on to Client B, then home, Client A pays for the first leg and half the connecting segment, and Client B pays for the return leg and the other half. The guiding principle: no client should pay more than a round trip from your home to their location would have cost.
What the Contract Needs to Say
A handshake understanding about travel charges will eventually produce a disputed invoice. Lock the terms down in writing before work begins.
Define a billable travel radius. Many professionals set a threshold — 30 miles or 45 minutes from their office is common — inside which travel is included in the service fee. Beyond that boundary, the travel policy kicks in. Establish what counts as local and what triggers additional charges.
Specify the rate and the method. State whether you charge a flat fee, a reduced hourly rate, mileage, or some combination. Include the per-mile figure and note whether it tracks the IRS standard rate, which changes annually. State whether you bill one-way or round-trip, and whether airport wait time and layovers are included.
Address reimbursable expenses separately from time charges. If the client is covering airfare, lodging, rental cars, or meals, the contract should say whether you book coach or economy, whether lodging follows federal per diem limits, and whether original receipts are required. Requiring receipts for everything except per diem meals is standard practice.
Documentation That Backs Up the Invoice
Detailed records do two jobs at once: they justify invoices to clients and they substantiate deductions if the IRS asks. The habits are the same for both.
Time Records
Record the exact start and end time of each travel segment. When you drive from your office to a client site, note the departure and arrival times. Digital time-tracking apps on your phone make this nearly automatic and produce a timestamped record that’s harder to dispute than a handwritten note. Update logs the same day. Reconstructing travel times a week later introduces errors that erode credibility with both clients and auditors.
Mileage Logs
For vehicle-related charges, the IRS expects a log showing the date, your starting and ending locations, the business purpose of the trip, and the miles driven. Odometer readings at departure and arrival are the gold standard, though GPS-based tracking apps that record the route automatically are widely accepted. If you use the standard mileage rate, these records are mandatory. Even if you calculate actual vehicle costs instead, you still need adequate records to prove business purpose.
Lodging and Meal Records
When you bill a client for overnight travel expenses, keep hotel receipts showing the property name, location, dates, and a breakdown separating lodging from meals or phone charges. There’s no standard federal lodging allowance for the private sector, so your deductible amount is what you actually spent. For meals, you can track actual costs with receipts or use the federal standard meal allowance, but either way you need records proving the time, place, and business purpose. Keep all travel documentation for at least three years from the filing date of the return that claims the deduction.
How the Invoice Should Look
Travel charges belong on a separate line item, distinct from labor, materials, or other expenses. A client who sees a single lump sum has no way to evaluate whether the charge is reasonable. A broken-out line builds trust. List the total hours or miles, the applicable rate, and the subtotal. If you charge both a time-based rate and mileage, put them on separate lines.
Attach the supporting documentation: the mileage log, time records, and receipts for any pass-through expenses. This isn’t only good practice for the relationship. If your client is a business, they need that backup to substantiate their own deduction for the expense. Send invoices through whatever secure channel you’ve agreed on — an invoicing platform, encrypted email, or mail — and keep copies of everything you send.
Tax Handling of What You Collect
Pay for hours spent traveling is ordinary taxable income. For independent contractors, it’s self-employment income reported on Schedule C. There’s no special exclusion for travel time pay just because you were sitting in a car instead of actively working.
The commuting-versus-business-travel distinction matters at tax time. Your daily trip to a regular place of business is a non-deductible personal commute regardless of distance. Travel from your home to a temporary work location outside your metropolitan area is deductible, and if your home is your principal place of business, trips from there to any other work location in the same trade or business are also deductible.
If You’re Paying Employees Rather Than Billing Clients
The rules above cover charging clients. Paying your own hourly employees for travel is a separate framework governed by the Fair Labor Standards Act and the Portal-to-Portal Act, which set out when employee travel counts as compensable hours worked (routine commuting doesn’t; travel between job sites during the workday does; special one-day out-of-town assignments and travel during regular hours on overnight trips generally do). Employers who get this wrong owe unpaid wages plus an equal amount in liquidated damages, and willful violations carry civil penalties of up to $2,515 each. If you pay a lower rate for employee travel time than for active work, overtime past 40 hours is calculated on a weighted average of the two rates, not the higher one.