Quick Answer:
Under UK employment law and the National Minimum Wage Regulations 2015, travel time spent by domiciliary care workers traveling between client visits is legally classified as "time work" and must be paid, or factored into the worker's total pay to ensure average hourly earnings do not fall below the statutory National Minimum Wage (NMW) / National Living Wage (NLW). Following the landmark Employment Appeal Tribunal ruling in Whittlestone v BJP Home Support Ltd, care providers cannot only pay for "contact time" (time spent inside a client's home) while treating travel time between calls as unpaid. To determine NMW compliance, HMRC divides the worker's total pay during the pay reference period by the total hours worked—including both contact hours and travel time. Additionally, employers reimbursing carer travel expenses must adhere to HMRC Approved Mileage Allowance Payment (AMAP) rates (45p per mile for the first 10,000 miles, tax-free); if an agency does not reimburse business mileage or pays below 45p, the unreimbursed vehicle costs are deducted from wages during HMRC audits, frequently causing inadvertent breaches of the National Living Wage.
Domiciliary care agencies deliver vital support that allows elderly and vulnerable individuals to remain living independently in their own homes. Unlike residential care homes where staff work in a single physical location, home care workers spend substantial portions of their working day traveling between client visits across towns, rural villages, and urban boroughs.
For home care providers, managing travel time and mileage is not merely an operational logistics issue—it is one of the highest-risk legal and financial compliance areas in the social care sector. HMRC regularly names and shames domiciliary care providers for National Minimum Wage underpayments, often issuing six-figure back-pay demands and 200% financial penalties.
In almost all cases, these breaches are not deliberate exploitation; they occur because agencies fail to account for travel time dilution and unreimbursed mileage deductions.
This guide provides a comprehensive breakdown of UK travel time regulations, the Whittlestone precedent, HMRC mileage rules, and practical operational strategies to protect both care workers and agency profit margins.
The Legal Foundation: Whittlestone v BJP Home Support Ltd
The cornerstone of modern UK domiciliary travel pay jurisprudence is the Employment Appeal Tribunal (EAT) judgment in Whittlestone v BJP Home Support Ltd [2014] ICR 516.
┌────────────────────────────────────────────────────────────────────────┐
│ WHITTLESTONE V BJP HOME SUPPORT: KEY FINDINGS │
├────────────────────────────────────────────────────────────────────────┤
│ 1. Travel Between Assignments is "Time Work" │
│ Time spent traveling between one care call and the next is not a │
│ personal commute; it is essential travel in the course of duty. │
│ │
│ 2. The "Contact Hours Only" Pay Trap is Unlawful │
│ Agencies cannot pay workers solely for the 30-min visit and treat │
│ the 20-min drive between clients as completely free labour. │
│ │
│ 3. Ordinary Commute Remains Excluded │
│ Travel from the worker's home to the first client of the day, and │
│ from the last client back home, is generally ordinary commuting │
│ (unless specific mobile worker contractual terms dictate otherwise).│
└────────────────────────────────────────────────────────────────────────┘
In Whittlestone, Mrs. Whittlestone was employed as a care worker paid a set rate for contact visits. She was not remunerated for the travel time between service users' homes. The EAT ruled that traveling between service users was integral to her duties and must be treated as time work for which the National Minimum Wage must be paid.
The NMW Dilution Formula: How Agencies Inadvertently Breach the Law
HMRC enforces compliance using a strict mathematical audit. They do not look at individual hours in isolation; they calculate total remuneration across the Pay Reference Period (weekly or monthly) and divide it by the total qualifying working hours.
The Mathematical Formula:
$$\text{Effective Hourly Rate} = \frac{\text{Gross Pay} - \text{Allowable Deductions}}{\text{Contact Hours} + \text{Inter-Visit Travel Time Hours}}$$
If the resulting effective hourly rate is less than the statutory National Living Wage, the employer is guilty of underpayment under the National Minimum Wage Act 1998.
┌────────────────────────────────────────────────────────────────────────┐
│ THE TRAVEL TIME DILUTION TRAP │
├────────────────────────────────────────────────────────────────────────┤
│ Scenario: Carer works an 8-hour shift across a rural community │
│ • Contact Time (Client visits): 5.0 hours │
│ • Inter-Visit Travel Time: 3.0 hours │
│ • Total Working Duty: 8.0 hours │
│ │
│ Agency pays £13.00/hour for contact time only: │
│ • Total Pay = 5.0 hours × £13.00 = £65.00 │
│ │
│ HMRC Audit Calculation: │
│ • Effective Pay = £65.00 ÷ 8.0 total hours = £8.125 / hour │
│ • Statutory National Living Wage Benchmark = £11.44 / hour │
│ ──> SEVERE UNDERPAYMENT BREACH: Shortfall of £3.315 per hour! │
└────────────────────────────────────────────────────────────────────────┘
As demonstrated above, an agency paying an apparently generous rate of £13.00 per hour for contact visits violates the law by a massive margin because 3 hours of unmeasured travel diluted total earnings down to £8.125 per hour.
HMRC Mileage Allowances & The Vehicle Cost Deduction
Even when an agency accurately records and pays for travel time hours, they can still breach National Minimum Wage rules through unreimbursed mileage expenses.
┌────────────────────────────────────────────────────────────────────────┐
│ HMRC APPROVED MILEAGE ALLOWANCE PAYMENTS (AMAP) │
├────────────────────────────────────────────────────────────────────────┤
│ Cars and Vans: │
│ • First 10,000 business miles in tax year: 45p per mile (tax-free) │
│ • Each business mile over 10,000 miles: 25p per mile (tax-free) │
│ │
│ Motorcycles: 24p per mile (all business miles) │
│ Bicycles: 20p per mile (all business miles) │
└────────────────────────────────────────────────────────────────────────┘
The Unreimbursed Mileage Liability Trap
Under Regulation 13 of the National Minimum Wage Regulations 2015, any expenditure incurred by a worker in connection with their employment is treated as a deduction from wages for NMW calculation purposes.
If a carer uses their personal car for work travel and the agency does not reimburse them at the full HMRC rate of 45p per mile:
- The actual vehicle running costs incurred by the carer reduce their net pay for NMW audit purposes.
- If an agency pays a carer exactly the National Living Wage (£11.44/hr) and requires them to drive 100 business miles a week without reimbursing mileage, the carer is spending roughly £45/week on fuel and vehicle wear.
- HMRC subtracts £45 from their weekly pay, causing their effective hourly earnings to crash below statutory minimum wage levels.
How to Stay Compliant on Mileage:
- Pay AMAP Reimbursed Mileage: Pay carers an explicit, tax-free mileage allowance (e.g., 40p to 45p per mile) recorded separately on the payslip.
- Never Roll Mileage into Basic Pay: Do not tell carers, "Your £13/hr rate includes your petrol." HMRC rules state that basic pay cannot satisfy travel expense deductions unless contractually defined with rigorous audit trails.
- Assist Carers with Tax Relief (P87): If an agency can only afford to pay 30p per mile, the carer is entitled to claim tax relief from HMRC on the remaining 15p difference under Section 231 of the Income Tax (Earnings and Pensions) Act 2003.
Contact Time vs Travel Time vs Gaps: What Counts as Working Time?
Domiciliary care schedules typically contain three types of time throughout the day:
| Time Category | Operational Description | Legal Classification under NMW | Is Pay Required? |
|---|---|---|---|
| Contact Time | Direct care delivery inside the client's residence. | Time Work | Yes (at or above NMW). |
| Inter-Visit Travel Time | Driving or public transport between Client A and Client B. | Time Work | Yes (at or above NMW). |
| Normal Daily Commute | Home to first client; last client back to home. | Ordinary Commuting | Generally No (unless depot-based). |
| Unavoidable Wait / Gaps (<60m) | A 20-minute gap between visits where the carer cannot return home. | Working Time | High risk; typically treated as working time. |
| Genuine Rest Break (>60m) | A scheduled 90-minute unpaid lunch break where the carer is completely free from duty. | Rest Period | No (provided worker is genuinely released). |
The "Gap" Hazard in Rota Design
In rural and semi-urban rotas, coordinators often schedule gaps of 30 to 45 minutes between calls. If a carer finishes a call at 11:30 and their next call starts at 12:15, and the drive takes 15 minutes, they have a 30-minute idle window sitting in their car.
Because the carer cannot return home or pursue leisure activities, Employment Tribunals frequently deem these short gaps as time spent at the disposal of the employer. Treating these gaps as unpaid unpaid time exposes the agency to substantial back-pay claims.
4 Strategies for Domiciliary Care Providers to Cut Travel Waste
To maintain healthy profit margins while ensuring 100% NMW compliance, home care agencies must minimise unbilled travel time through smart operational technology.
┌────────────────────────────────────────────────────────────────────────┐
│ DOMICILIARY TRAVEL OPTIMISATION PIPELINE │
├────────────────────────────────────────────────────────────────────────┤
│ 1. Geographic Zoning & Route Clustering (Group clients by postcode) │
│ │ │
│ 2. Automated Route Optimisation (Algorithms sequence visits logically) │
│ │ │
│ 3. GPS Electronic Visit Verification (EVV) (Accurate arrival logs) │
│ │ │
│ 4. Single-Item Pay Architecture (Separate contact, travel & mileage) │
└────────────────────────────────────────────────────────────────────────┘
1. Implement Geographic Zoning
Avoid scheduling a carer in Postcode Sector A at 09:00, Sector B at 10:00, and back to Sector A at 11:00. Divide your operating territory into discrete geographic clusters or walking runs. Carers should remain within a tight geographic radius throughout their shift.
2. Deploy Automated Route Optimisation
Human coordinators relying on spreadsheets or memory cannot calculate the shortest travel paths across hundreds of visits. Use specialized domiciliary rostering software that features dynamic map-based routing algorithms. This typically reduces travel time between calls by 25% to 40%, saving hours of unbilled wages every week.
3. Replace Paper Timesheets with GPS Electronic Visit Verification (EVV)
Paper timecards are notoriously inaccurate; carers routinely estimate travel times or round up visits. With GPS mobile apps, the carer clocks in automatically when entering the client's geofenced property and clocks out upon leaving. The system automatically calculates the transit time between consecutive clock-outs and clock-ins.
4. Structure Payslips with Full Line-Item Transparency
Protect your business against HMRC audits by displaying three distinct items on every care worker's payslip:
- Contact Hours: e.g., 28.0 hours @ £13.80/hr.
- Travel Time Hours: e.g., 7.5 hours @ £12.71/hr (National Living Wage).
- Tax-Free Business Mileage: e.g., 140 miles @ £0.45/mile.
Frequently Asked Questions (FAQ)
Is it legal for a care agency to pay only for contact time in the UK?
Paying only for contact time is legal only if the total wages paid, when divided by the total hours worked (contact hours plus travel time between visits), results in an average hourly rate that meets or exceeds the statutory National Minimum Wage / National Living Wage. However, because travel time dilutes hourly earnings, paying only for contact hours creates an extreme risk of unlawful underpayment.
Does a care worker's commute from home to their first client count as working time?
In general, no. Under UK employment regulations, ordinary travel between a worker's home and their first normal place of work (and from their last visit back home) is classed as an ordinary commute and does not count as time work for National Minimum Wage purposes. However, travel between all subsequent clients throughout the working day is legally working time.
What is the HMRC mileage rate for domiciliary care workers in 2026?
The HMRC Approved Mileage Allowance Payment (AMAP) rate is 45p per mile for the first 10,000 business miles in a tax year, and 25p per mile for each additional mile. These payments are exempt from income tax and National Insurance contributions.
What happens if an agency does not reimburse care staff for petrol and mileage?
If an agency requires carers to use their personal vehicles for business travel without reimbursing their mileage at HMRC AMAP rates, the unreimbursed vehicle costs are treated as an employment expense deducted from the worker's earnings. During an HMRC audit, this deduction frequently causes the worker's net wages to fall below the statutory National Minimum Wage, exposing the agency to back-pay orders and penalties of up to 200% of underpayments.
Eliminate Travel Time Risk & Optimise Your Runs
Navigating domiciliary travel time, mileage allowances, and EVV compliance without automated software is an expensive, high-risk operational gamble.
Streamline your home care operations with AsanWork:
- Explore digital timesheet tracking: Healthcare Online Timesheet Software
- Read our route optimisation guide: Domiciliary Route Optimisation & Mileage
- Understand EVV compliance: EVV Home Care Software Explained
- Discover domiciliary tools: Domiciliary Care Rostering Software
- Protect your margins: Book a Free Rota Optimisation Audit