UK Work Travel Laws: Employer Obligations, Expenses And Working Time Rules

If your business is growing, it’s only a matter of time before someone needs to travel for work - visiting a client, covering a different site, attending training, or heading to an event.

But travel can get legally tricky fast. Is that journey “working time”? Do you have to pay for it? What about mileage, hotels, meals, and cancellations? And how do you keep things fair across your team while protecting your business from disputes?

This guide breaks down the key UK rules on travel for work from a small business employer’s perspective, so you can confidently set expectations, pay people correctly, and stay compliant.

What Counts As “Travel For Work” (And Why It Matters Legally)

Before you can apply the right rules, you need to identify what type of travel you’re dealing with. In practice, workplace travel usually falls into one of these buckets:

• Ordinary commuting: travel between an employee’s home and their normal place of work.
• Business travel: travel to a client site, a different branch/site, training, conferences, or another temporary workplace.
• Peripatetic travel: travel that is part of the job (for example, mobile workers who travel between multiple locations).
• Overnight travel: travel requiring hotels and subsistence (meals and incidental expenses).

This classification matters because it affects:

• whether travel time counts as working time for Working Time Regulations purposes;
• whether travel time must be paid (especially where National Minimum Wage (NMW) is relevant);
• what you should reimburse (expenses and mileage); and
• what your contracts and policies should say to avoid misunderstandings.

As a general starting point, commuting to a regular workplace is usually not treated the same as business travel. But if an employee has no fixed workplace (or their role is structured so that home is effectively their base), the analysis can change.

When Does Travel Time Count As Working Time Under UK Law?

One of the most common employer questions about travel is: “Do we have to treat travel time as working time?”

UK working time rules largely come from the Working Time Regulations 1998 (WTR). Under these rules, “working time” is broadly time when a worker is:

• working;
• at the employer’s disposal; and
• carrying out their activity or duties.

So what does that mean in real life?

Ordinary Commuting (Usually Not Working Time)

Travel from home to an employee’s normal workplace is generally ordinary commuting. It’s usually not “working time” for WTR purposes, and employers don’t typically have to pay for it.

That said, if you ask someone to attend a different site (not their normal workplace) or to start work somewhere else for the day, you can move out of the “commuting” category and into business travel.

Travel Between Work Locations (Often Working Time)

Travel during the working day - for example, between client sites, between branches, or between jobs - is often working time, because the employee is travelling as part of their duties.

This is especially important for mobile roles (for example, engineers, carers, sales reps, and other field-based staff) where travel is part of the job rather than a one-off requirement.

For a deeper look at how travel time can become payable, particularly for mobile workers, it’s worth reviewing travel time pay rules in practice for travel time pay.

Home As A Base And “First Journey / Last Journey” Problems

If a worker has no fixed workplace and travels to different sites each day, the time spent travelling from home to the first job and from the last job back home may count as working time (depending on the setup of the role). This is often discussed in the context of the Tyco decision (and how it applies to genuinely mobile workers).

This is an area where small details matter:

• Does the employee have a contractual base or “normal place of work”?
• Are they required to be contactable and ready to respond while travelling?
• Are you directing their route and schedule?
• Are they travelling to a “temporary workplace” or effectively operating as a mobile worker?

If you’re unsure, it’s a good idea to get advice early - misclassifying travel time can create underpayment issues and working time compliance problems.

Rest Breaks And Travel Days

Travel-heavy days can also cause break compliance issues. If someone is driving long distances between sites, you still need to ensure they can take statutory rest breaks (and that workloads are realistic).

Your approach should be consistent with employee breaks and rest entitlements under the WTR.

Do You Have To Pay Employees For Travel Time?

“Working time” and “paid time” are related, but not identical concepts.

Whether you must pay for travel time depends on:

• the employee’s contract and pay structure (hourly vs salaried);
• whether travel time counts as working time for legal compliance;
• whether not paying would take pay below the National Minimum Wage; and
• your policies and established practices (consistency matters).

Hourly-Paid Staff And Minimum Wage Risk

If you pay hourly, and travel time is treated as working time, you’ll usually need to include it when calculating pay. Otherwise, you can accidentally drop someone below minimum wage once their “real hours” are considered.

Even if you pay a salary, you should still watch for minimum wage issues where staff work extra hours regularly (including travel). Whether travel time must be included in NMW calculations depends on the type of work and whether the time falls within the relevant NMW category (for example, time work vs salaried hours work) - so the detail matters.

Overtime, Long Days, And Legal Limits

Travel can quickly extend the working day - for example, leaving at 6am for a client visit, then driving home after a late meeting.

That’s when working time limits and fatigue management come into play. Your obligations don’t stop just because the employee is “only travelling”. You still need to manage:

• maximum weekly hours (unless an opt-out applies);
• daily and weekly rest; and
• safe workloads (especially where driving is involved).

If your team regularly does very long days due to travel, it’s worth checking your approach aligns with maximum daily working hours and related working time rules.

And if you’re worried about extreme workloads, the same compliance thinking applies as when assessing working 70 hours - it’s not just about what’s “allowed”, it’s about what’s sustainable and legally safe for your business.

Practical Tip: Decide And Document Your Travel Pay Approach

Most disputes happen when businesses don’t set a clear rule and stick to it. As an employer, you should decide (and document) things like:

• what travel time is paid vs unpaid;
• how travel is recorded (timesheets, job apps, calendars);
• what counts as a “normal workplace”;
• what happens when an employee is asked to attend a different site; and
• how overnight travel time is treated.

This is usually best handled through a combination of a tailored Employment Contract and a written policy.

Employer Obligations For Travel Expenses (Mileage, Trains, Hotels, Meals)

Next up: expenses. Many small businesses want to do the right thing, but don’t want open-ended reimbursements or inconsistent claims.

At a high level, UK law doesn’t impose one single rule that dictates exactly what you must reimburse in every scenario. Instead, your obligations usually come from a mix of:

• the employment contract and workplace policies (what you have agreed to pay);
• National Minimum Wage rules (for example, where workers end up funding required business costs and that reduces pay below NMW);
• tax rules and HMRC guidance (what can be paid/reimbursed and how it may be treated); and
• general duties to act reasonably and consistently to reduce grievance, equal treatment, and discrimination risks.

Note: This section is general information only and isn’t tax advice. Tax treatment depends on the specific facts and HMRC rules, so consider getting accountant/tax advice for your setup.

Common Expense Categories To Cover In Your Policy

A well-written travel and expenses policy will usually cover:

• Mileage (if personal vehicles are used): rate per mile, what trips qualify, and what records are needed.
• Public transport: rail/tube/bus, standard vs first class, when advance booking is required.
• Parking and tolls: when reimbursable and what receipts are required.
• Fuel: whether reimbursed separately or included within a mileage rate.
• Hotels: booking process, cost caps, and cancellation rules.
• Meals and subsistence: daily limits, alcohol rules, and what counts as “reasonable”.
• Client entertainment: when permitted, approval workflows, and record-keeping.

Approvals, Caps, And Evidence (Receipts Matter)

From a risk-management perspective, your policy should clearly say:

• which expenses need pre-approval;
• any spending caps (and what happens if someone exceeds them);
• the timeframe for submitting claims (for example, within 30 days); and
• what evidence is required (receipts, VAT invoices, booking confirmations).

This isn’t just about being strict - it’s about creating consistency so you can say “yes” quickly to legitimate expenses and confidently query anything outside the rules.

Don’t Forget Insurance And Safety For Work Travel

If employees drive for work, you should also think beyond reimbursement and consider:

• whether they have appropriate motor insurance for business use;
• driving licence checks (especially for regular drivers);
• fatigue risks and realistic scheduling; and
• what happens after an accident on a work trip.

These issues usually sit in your health and safety practices and internal policies, rather than in a single “travel law” - but they can become a big liability if ignored.

Working Time Rules To Watch When Staff Travel (Hours, Breaks, And Record-Keeping)

Even if you’ve nailed your expenses approach, travel can still cause compliance issues with working time and pay - especially if you don’t track time properly.

Here are the practical areas to watch as a small business.

1. Keep Working Time Records (Especially For Mobile Staff)

You don’t need a perfect system, but you do need something workable. If travel time is part of working time for a role, you should be able to demonstrate:

• start and finish times;
• breaks taken;
• site-to-site travel time; and
• overall weekly hours (particularly where staff could exceed the 48-hour average).

This helps if you ever face a complaint about underpayment, excessive hours, or rest breaks not being provided.

2. Plan For Break Entitlements On The Road

It’s easy for breaks to “disappear” when someone is travelling between sites. But legally, you still need to ensure workers can take rest breaks, and operationally, breaks reduce safety risks (particularly for driving).

Your policy should spell out expectations, and your scheduling should allow for compliance with employee breaks even when staff are off-site.

3. Be Clear About Overnight Travel And “On-Call” Time

If a worker travels and stays overnight, you should clarify:

• Is travel time outside normal hours paid?
• Is time spent in the hotel counted as working time (usually not, unless they’re required to be working or are significantly restricted)?
• If they’re on-call, what is the on-call arrangement and how is it paid?

This is another area where setting the expectation upfront avoids disputes later.

4. Opt-Out Agreements And Long Travel Weeks

If staff regularly exceed average weekly limits, you may need to consider whether a Working Time opt-out is appropriate (and lawful for that worker), and what safeguards you’ll still apply to manage fatigue.

Because opt-outs and working time compliance are detail-heavy, it’s worth reviewing the broader Working Time Regulations position and then tailoring it to your business model.

How To Protect Your Business: Contracts, Policies, And A Consistent Process

If you want to reduce disputes about travel for work, the best thing you can do is build a simple, consistent framework from day one.

Put The Essentials In The Employment Contract

Your employment contract should clearly address the basics, such as:

• the employee’s normal place of work (or whether the role is mobile);
• mobility requirements (if they may be required to work at other sites);
• hours of work (and how overtime/travel time is treated);
• whether travel is required and any conditions; and
• a reference to your travel/expenses policy (so you can update it without rewriting contracts).

Using a properly drafted Employment Contract helps you set expectations clearly and reduces the risk of implied promises forming through inconsistent practice.

Use A Travel & Expenses Policy (And Actually Follow It)

In most small businesses, a policy is where the detail lives. This is where you set spending limits, approvals, timeframes, and the practical “how-to” of claiming expenses.

Many businesses also fold this into a broader handbook or internal policy suite. If you’re building or updating your internal documents, a tailored Workplace Policy package can make it much easier to keep things consistent across your team.

A Simple, Repeatable Process For Travel Requests

To keep control of costs (and reduce last-minute surprises), consider implementing a lightweight process such as:

1. Travel request submitted (where needed): destination, purpose, dates, estimated cost.
2. Approval: manager approves budget and confirms whether the travel time is paid.
3. Booking rules: who books (employee vs admin), and what class/hotel options are permitted.
4. During the trip: time recording expectations, break expectations, safety rules.
5. Claim submission: receipts, mileage logs, and submission deadline.
6. Reimbursement: set payment timeframe (for example, within the next payroll run).

This kind of process protects your cashflow, gives employees clarity, and helps you evidence compliance if a dispute ever arises.

Key Takeaways

• UK travel-for-work rules depend heavily on whether travel is ordinary commuting, business travel, or part of a mobile role - so classification matters.
• Travel time can count as working time under the Working Time Regulations, particularly where workers travel between sites or have no fixed workplace.
• Whether you must pay for travel time depends on contracts, working time rules, and minimum wage compliance - it’s risky to assume travel is always unpaid.
• A clear travel and expenses policy should cover mileage, public transport, hotels, meals, approvals, caps, and receipt requirements to keep claims consistent and manageable.
• Travel-heavy roles can create compliance problems with maximum hours and rest breaks, so scheduling and record-keeping are essential.
• The best protection is having a tailored employment contract plus a written policy that you follow consistently across the business.

If you’d like help reviewing your travel pay approach, updating your policies, or putting the right documents in place, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.