Business travel is a routine part of many jobs, but the rules for paying employees while they're on the road are anything but simple. Travel pay sits at the intersection of federal wage and hour law, state-specific requirements, and IRS guidance on reimbursements, and getting it wrong can expose a company to overtime claims, back-pay liability, and costly wage and hour lawsuits. As remote and multi-state workforces become the norm, payroll and HR teams need a clear grasp of how travel time compensation actually works, and where state law diverges from the federal baseline.

Why Travel Pay Is a Growing Compliance Risk

Under the Fair Labor Standards Act (FLSA), non-exempt employees generally must be paid for time spent traveling that is part of their principal work activity. Ordinary home-to-work commuting is not compensable, but travel between job sites during the workday, overnight travel that cuts across normal working hours, and travel required for a special one-day assignment often is. The challenge is that many states layer additional obligations on top of the federal rules, and when state and federal law conflict, employers must generally follow whichever standard is more favorable to the employee.

This is where compensable travel time becomes tricky. A rule that satisfies the Department of Labor may still fall short of a state labor code, particularly in states known for stronger worker protections. Employers operating across state lines need a system for tracking which jurisdiction's rule applies to each traveling employee, especially when remote or hybrid staff cross state boundaries for work.

Key Areas Where State Rules Differ

Several recurring issues tend to trip up payroll departments:

Portal-to-portal versus door-to-door pay. Some states require compensation from the moment an employee leaves home for a work-related trip, rather than only from the time they reach a first job site, particularly for employees without a fixed daily location.

Overtime calculations. Travel hours that count as hours worked must be included when calculating weekly overtime for non-exempt employees. A state with a daily overtime threshold, rather than only a weekly one, can trigger overtime obligations that federal law alone would not.

Exempt versus non-exempt treatment. Salaried exempt employees are generally not entitled to additional travel pay, but non-exempt employees, including hourly and some salaried non-exempt staff, retain travel pay protections regardless of job title.

Multi-state assignments. When an employee works in more than one state during a single trip or pay period, employers may need to apply the wage and hour rules of each state involved, not just the state where the company is headquartered.

Per Diems, Reimbursements, and IRS Rules

Travel pay compliance isn't only a Department of Labor issue; the IRS also has strict guidelines for how travel-related payments are taxed. Employers typically reimburse travel expenses through either an accountable plan or a nonaccountable plan. Under an accountable plan, reimbursements for substantiated business expenses, such as lodging, meals, and mileage, are generally excluded from taxable wages. Under a nonaccountable plan, or when documentation requirements aren't met, those payments can become taxable income subject to withholding.

Per diem rates offer a simplified alternative to itemized reimbursement, allowing employers to pay a fixed daily amount for lodging and meals without requiring receipts for every expense. However, per diems must stay within federal guidelines to remain nontaxable, and any excess amount paid above the allowable rate is treated as wages.

Best Practices for Employers

To reduce exposure, employers should:

Maintain a written travel pay policy that distinguishes compensable travel time from ordinary commuting, and clarifies treatment for exempt and non-exempt staff.
Track the states in which traveling employees perform work, particularly for multi-state or remote teams.
Reconcile any state-specific travel pay rule against federal FLSA requirements and apply the more generous standard.
Choose and consistently apply either an accountable or nonaccountable reimbursement plan, with clear documentation requirements.
Train payroll and HR staff to recognize special circumstances, such as one-day assignments or overnight travel, that can trigger unexpected pay obligations.
Review policies periodically, since state wage and hour laws are updated frequently and can shift travel pay obligations with little notice.

Travel pay compliance requires coordinating federal law, state law, and IRS reimbursement rules into a single, defensible policy. Employers who build that framework now, rather than reacting after a wage claim surfaces, put themselves in a far stronger position to manage a mobile, multi-state workforce.

Summary

Travel pay compliance requires balancing federal FLSA rules with state-specific requirements, which often extend further than the federal baseline, especially for multi-state and remote workforces. Employers must correctly distinguish compensable travel time from ordinary commuting, factor travel hours into overtime for non-exempt employees, and apply the more employee-favorable standard when state and federal rules conflict. On the reimbursement side, IRS rules on accountable versus nonaccountable plans and per diem limits determine whether travel payments are taxable. A written policy, consistent multi-state tracking, and periodic review are the best defenses against wage and hour claims.

Frequently Asked Questions

Q1.Is all business travel time considered paid working time?
No. Ordinary commuting between home and a regular worksite is typically not compensable, but travel during the workday between job sites, and certain overnight or special-assignment travel, generally is.

Q2.Do state travel pay laws override federal FLSA rules?
When state and federal requirements differ, employers must generally follow the standard that provides greater protection or pay to the employee, not simply the federal minimum.

Q3.Does travel pay count toward overtime calculations?
Yes. Compensable travel hours for non-exempt employees must be included in total hours worked when calculating weekly, and in some states daily, overtime.

Q4.What's the difference between an accountable and nonaccountable reimbursement plan?
An accountable plan requires expense substantiation and generally keeps reimbursements nontaxable, while a nonaccountable plan, or unsubstantiated payments, are treated as taxable wages subject to withholding.