An employee uses their own car for work: what the business should check
A business can have a driving risk without owning a single vehicle. An employee taking stock to another branch, visiting a customer or travelling between work locations may be driving for work in their own car.
Paying a mileage claim is an accounting step. It does not answer whether the journey was necessary, realistically scheduled or suitable for the driver and vehicle.
Identify which journeys fall within the arrangement
HSE calls worker-owned vehicles used for business a “grey fleet”. Its employer guidance says health and safety duties apply to work driving in both company and grey-fleet vehicles. Normal commuting is generally outside driving for work, with different considerations where a journey starts at home and goes to a work location that is not the normal workplace.
Make the business’s process clear for occasional journeys as well as regular travel. If the classification of a journey is uncertain, obtain appropriate advice instead of assuming the mileage rate settles the question.
Consider whether the journey is needed
Ask whether a call, video meeting, delivery service or different arrangement would avoid the driving. If travel is needed, choose a method that suits the task rather than automatically asking whoever has a car that day.
HSE’s journey-planning guidance covers schedules, route, timing, weather, rest and welfare access. It advises calculating journey times realistically rather than expecting a driver to recover delays through faster driving.
Build a small-business check around three questions
| Area | Questions to resolve |
|---|---|
| The journey | Why is it needed? Is the route and schedule realistic? What happens if the driver is delayed or conditions change? |
| The driver | Are they appropriately licensed, able to undertake the planned driving and clear about breaks, distraction and stopping? |
| The vehicle | Is it suitable and roadworthy for the trip and load? Have the relevant insurance and legal requirements been checked? |
Record only information needed to manage the arrangement and keep it appropriately protected. Ask the worker to confirm that their insurance covers the actual proposed business use; policy wording and circumstances vary.
Make delay a planning problem, not a driving instruction
Consider a fictional employee asked to visit two clients before collecting equipment from a third site. The schedule leaves no time for traffic, parking or a break. Each individual booking looks possible, but the combined day is unreasonable.
Change the bookings, combine tasks or choose another arrangement. Tell the employee who can approve a delay or cancellation. A message saying “please make up time” undermines a written policy about safe driving.
Agree how communication will work
Set expectations before departure. Where a driver works alone, agree a missed-check-in procedure that has a named responder. Customers and colleagues should know that a driver may be unavailable while travelling. Arrange updates when the vehicle is safely parked, rather than making immediate responses part of the job.
Include the return journey when assessing the day. A meeting finishing on time does not establish that a person is fit to drive home after an unusually long or demanding working period. Make it possible to raise that concern without being treated as unhelpful.
Review the arrangement when something changes
A different vehicle, new route, changed workload or concern about fatigue may mean the existing plan needs review. Give employees a straightforward way to report those changes before setting off.
For a small business, a proportionate record can be brief: journey purpose, relevant checks, agreed controls, the person approving it and how changes are handled. Its value lies in the decisions behind it, not the number of boxes on the form.
Scope: this guide uses HSE guidance for workplaces in Great Britain. Northern Ireland has a separate health and safety regime; check HSENI guidance where relevant. Apply the advice to your own activities and obtain competent help where needed.

