Do Employers Have To Pay Mileage In The UK?

If your team travels for work, mileage and fuel expenses can get confusing fast. Do you have to pay mileage in the UK, what counts as “business travel”, and how should you handle tax and paperwork without creating an admin headache?

In this guide, we break down what UK law requires (and doesn’t), how HMRC mileage rates work, and the best way to set up a clean, compliant mileage policy that protects your business and keeps employees paid fairly.

What Does UK Law Require On Mileage Payments?

The short answer: there’s no general legal duty to pay employees mileage in the UK.

However, there are three important caveats small employers need to understand:

• Contractual obligations: If your Employment Contract or Expenses Policy promises mileage or fuel reimbursement, you must follow it. If you change those terms, consult staff and update the documents properly.
• National Minimum Wage (NMW) risk: Even if you don’t pay mileage, you must ensure travel time that counts as working time doesn’t drag the employee’s effective pay below the NMW. Travel between assignments or client sites during the working day often counts as working time for NMW purposes (but ordinary home-to-work commuting does not). Review your rates and scheduling alongside the Working Time Regulations and NMW rules to stay compliant.
• Duty of care and “grey fleet” safety: If employees drive their own vehicles for work (the “grey fleet”), you still owe health and safety duties. Make sure vehicles are roadworthy, drivers are licensed and insured for business use, and your policy addresses rest breaks and safe driving. Your Employers’ Liability Insurance doesn’t replace proper motor insurance with business cover.

So while the law doesn’t force you to pay mileage, most employers choose to reimburse reasonably to avoid NMW issues and to keep things fair, consistent and low-risk.

HMRC Mileage Rates And How Tax Works

HMRC sets “Approved Mileage Allowance Payments” (AMAPs). These are the maximum tax-free rates you can pay employees who use their own vehicles for business journeys:

• Cars and vans: 45p per mile for the first 10,000 business miles in a tax year, then 25p per mile thereafter
• Motorcycles: 24p per mile (all miles)
• Bicycles: 20p per mile (all miles)

You can also pay an extra 5p per mile per passenger if the passenger is another employee travelling on the same business journey.

Here’s what those rates mean in practice:

• Pay at or below AMAPs: No tax or NIC for the employee; no reporting requirement. Simple and clean.
• Pay above AMAPs: The excess over the HMRC rate is taxable (and usually subject to Class 1 NIC). You’ll need to process the excess through payroll or benefits reporting.
• Pay below AMAPs or pay nothing: The employee can claim “Mileage Allowance Relief” (tax relief) from HMRC on the difference up to the AMAP rate. This doesn’t cost you, but it can leave staff out of pocket until they claim.

Many small businesses choose to mirror AMAPs to keep payroll simple and consistent across the team. If you want to offer different rates (for example, different car bands), ensure the tax treatment is correct and the policy is crystal clear.

Fuel cards vs mileage: If you provide fuel cards for privately owned vehicles, separate tax and benefit rules can apply. Mileage reimbursement, when done at AMAPs, tends to be less admin-heavy and avoids fuel benefit charges, provided you stick to business mileage only.

For a broader overview of options around reimbursing travel costs, it’s worth reviewing guidance on employee fuel pay and setting rates that fit your business model.

What Counts As Business Mileage (And What Doesn’t)?

Getting this right matters because it drives both tax treatment and fairness across your team.

Generally Counts As Business Mileage

• Travel between workplaces during the day (for example, between client sites or from your office to a supplier)
• Travel to a temporary workplace (a place an employee attends for a limited period, typically less than 24 months)
• Travel to a meeting, training, or a site that’s not the employee’s permanent workplace

Generally Does Not Count As Business Mileage

• Ordinary commuting from home to a permanent workplace (and back)
• Detours for personal errands or non-business purposes
• Travel to a new permanent workplace once the 24-month rule is triggered

Watch out for hybrid working. If your policy designates the office as the permanent workplace, trips to the office are still commuting, even if the employee only attends a few days a week. If a client site becomes the de facto permanent location for more than 24 months, commuting rules may apply. Train your managers to spot these changes and communicate them early to avoid disputes.

Building A Compliant Mileage And Expenses Policy

A clear policy is your best defence against confusion, inconsistent claims and payroll errors. You can include mileage rules in your Staff Handbook and mirror the essentials in the Employment Contract so there’s no ambiguity.

Key Decisions To Make

• Who is eligible? Define roles or scenarios where business mileage is permitted (e.g. field engineers, sales, multi-site managers).
• Approved rates: Decide whether you’ll pay HMRC AMAPs or a different rate (and explain tax treatment if above/below HMRC rates).
• What counts as business travel: Spell out the rules around temporary workplaces, commuting, hybrid working, and detours.
• Vehicles and insurance: Require that privately owned vehicles used for work carry appropriate business-use insurance, valid MOT, and are roadworthy. Build in licence and insurance checks.
• Authorisation: Set pre-approval rules for longer trips and methods of travel (e.g. car vs public transport).
• Evidence and claims: Specify how to record mileage (date, start/end, purpose, miles), whether you require fuel receipts for VAT, and the claim submission deadlines.
• Passenger policy: State whether the 5p per-mile passenger supplement applies and when car sharing is encouraged.
• Fraud and accuracy: Clarify that false claims constitute misconduct and will be handled under your disciplinary process.

Clarity reduces back-and-forth, prevents resentment between teams, and ensures managers are applying consistent rules. If your business is fast-growing or has lots of field staff, consider adding a broader Workplace Policy framework covering expenses, conduct and safety on the road.

Practical Compliance: Records, VAT And Insurance

Beyond headline rates, the day-to-day mechanics are where small businesses often slip up. Here are the essentials.

Records And Evidence

• Mileage logs: Ask employees to capture the date, starting point and destination, business purpose, and miles travelled. Apps help, but spreadsheets are fine if consistent.
• Receipts: If you plan to reclaim VAT on mileage (fuel element only), you’ll need VAT fuel receipts dated on or before the journey and within the same VAT accounting period.
• Deadlines and approvals: Set a monthly cut-off for claims and require line-manager approval to stop drift.

VAT On Mileage Reimbursements

When employees use their own car, you can reclaim VAT on the fuel element of a mileage payment (not the whole 45p/25p) if:

• You pay a mileage rate for business travel in a private vehicle, and
• You hold a valid VAT receipt for fuel to cover the claim period, and
• You calculate the fuel portion using HMRC’s advisory fuel rates (or another fair method) to identify the VAT-inclusive fuel amount, then extract the VAT.

Many small businesses skip VAT recovery because the paperwork feels fiddly. If you do reclaim, keep a consistent method and make sure finance teams are trained on the calculation and receipt checks.

Insurance And Safety (Grey Fleet)

• Business-use insurance: Employees driving their own cars for work must have appropriate business-use cover. Personal “social, domestic and pleasure” insurance is not enough for work trips.
• Checks: Periodically check driving licences, insurance certificates and MOT status. Keep a simple register and renewal reminders.
• Working time and rest: Manage schedules with the Working Time Regulations in mind-fatigued driving is a safety risk and a legal issue.

Treat on-the-road work like any other health and safety risk: do a basic risk assessment, set rules for mobile phone use, and encourage breaks on longer journeys. The aim is to protect your people and your business.

Deductions And Overpayments

Sometimes an expense is paid in error. If you ever need to deduct an overpayment from wages, make sure the contract and policy allow for it and follow the lawful process for wage deductions to avoid disputes.

Common Scenarios And How To Handle Them

1) “Do I Have To Pay Mileage?”

Not by default, unless you’ve agreed to in the contract or policy. That said, paying a fair rate (often HMRC AMAPs) is a practical way to maintain morale, avoid NMW pitfalls, and keep admin tidy. If you choose not to pay, monitor effective hourly pay closely where staff travel during the day.

2) “We Want To Pay A Lower Rate”

You can-employees can claim tax relief on the shortfall. But lower rates can cause friction and increase questions to payroll. If you go this route, explain the tax relief option clearly and provide a worked example so employees understand their net position.

3) “We’d Like To Pay Above HMRC Rates”

That’s allowed, but the excess is taxable and usually NICable. Ensure your payroll system can process the taxable portion correctly and that the policy explains the difference.

4) “Our Team Uses Fuel Cards”

Fuel cards for private vehicles change the tax position and may trigger benefit-in-kind considerations if private fuel is covered. Many SMEs prefer straightforward mileage reimbursement at AMAPs to avoid complexity. If you stick with fuel cards, tighten your private-use controls and reporting.

5) “Hybrid Workers-What Counts As Commuting?”

Trips to a permanent workplace are commuting-even if an employee only attends twice a week. Trips between client sites, or to a temporary workplace, are generally business mileage. Communicate your definition of “permanent workplace” in your policy and keep it under review.

6) “Can We Encourage Car Sharing?”

Yes. You can pay the 5p per-mile passenger supplement for each colleague carried on a business journey. Make sure your insurance and safety guidance address seatbelts, maximum passengers and acceptable vehicle types.

7) “What About Contractors?”

Independent contractors typically price travel into their fees or claim their own allowable expenses. If you’re engaging contractors regularly, ensure your Contractor Agreement sets out whether travel is included in the fee or payable separately, and at what rate.

8) “Can We Just Pay For Public Transport?”

Absolutely-often it’s more cost-effective in cities. Just be clear when public transport is preferred or mandatory and set receipt rules. If you rarely need travel by car, your policy might default to public transport with exceptions where business needs require driving.

9) “What If An Employee’s Claim Looks Excessive?”

Have a manager review it against diary entries, GPS logs (if used), or client appointments. If there’s a genuine mistake, correct it; if it appears dishonest, investigate under your disciplinary process. Remind employees that providing false information may be misconduct.

Simple Steps To Roll Out Mileage Rules That Work

Step 1: Decide Your Approach

Pick your reimbursement method (AMAPs are often the simplest), define what qualifies as business mileage, and decide whether you’ll reclaim VAT on the fuel element.

Step 2: Update Contracts And Policies

Reflect the approach in the Employment Contract (high-level promise to reimburse business travel per policy) and set out the detail in your Staff Handbook or expenses policy.

Step 3: Train Managers And Payroll

Give managers a short guide on what counts as business mileage, when pre-approval is needed, and how to spot commuting vs temporary workplace trips. Train payroll on the tax/NIC treatment and any VAT reclaim process.

Step 4: Implement Light-Touch Controls

Introduce simple mileage logs, receipt requirements (if reclaiming VAT), and quarterly checks of licences and insurance for grey fleet drivers. Keep the process friction-light so it’s actually followed.

Step 5: Review Annually

HMRC rates, fuel costs and working patterns change. Review rates and rules at least yearly, and update the policy when needed. If you’re making a change that affects pay, consult staff and give reasonable notice.

Key Takeaways

• There’s no blanket legal duty to pay mileage in the UK, but contracts, policies and NMW rules can create practical obligations-get your documents aligned and your rates clear.
• HMRC AMAPs (45p/25p for cars, 24p motorcycles, 20p bicycles, plus 5p per passenger) are the simplest tax-free way to reimburse employees who use their own vehicles for business.
• Define what counts as business mileage and what is commuting. Temporary workplace rules and hybrid patterns matter-train managers to apply them consistently.
• If you pay above HMRC rates, the excess is taxable/NICable; if you pay below, employees can claim tax relief on the shortfall. Choose the approach that fits your culture and admin capacity.
• For privately owned vehicles, you can reclaim VAT on the fuel element of mileage if you hold valid fuel receipts and use a consistent calculation method.
• Don’t forget safety and insurance: check licences, require business-use cover, and manage schedules under the Working Time Regulations. Treat “grey fleet” risks seriously.
• Lock your rules into a clear expenses policy inside your Staff Handbook and reflect reimbursement rights in the Employment Contract to protect your business and keep things fair.

If you’d like tailored help drafting a mileage and expenses policy, updating contracts, or sense-checking your tax treatment, our team is here to help. You can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.