Round #472

09 May 2026, 15:48· hr-law· grok-4.3· r13-clean-hints
Complexity
band 0
ZP / UO / OBS
0 / 0 / 0
Journey weight
0
Lightshift ΔL
-0.50

Prompt

We pay our care workers the national living wage but they spend 30 minutes travelling between client visits unpaid. Is this lawful?

Zero-point index (what the engine surfaced)

ZPI-ZPI-0009 | 2026-05-09T15:48:27Z We pay our care workers the national living wage but they spend 30 minutes travelling between client visits unpaid. Is this lawful? ZERO POINT — 0 entries (structural invariants) UNOBSERVED — 0 entries (implied truths) OBSERVED — 0 entries (explicit in request) COMPLEXITY │ 0 entries │ spread: 0° │ band: LOW

Baseline response (no ZPI)

**No, this is not lawful.** Under UK law (National Minimum Wage Act 1998 and National Minimum Wage Regulations 2015), time spent travelling **between client visits** during a care worker’s shift counts as “working time” for National Living Wage (NLW) purposes. ### Key rules - Travel between assignments (e.g., the 30 minutes between clients) must be included when calculating whether the worker has received at least the NLW. - Only the initial journey from home to the first client and the final journey home from the last client are excluded. - If you only pay for the time spent at the client’s home and leave the inter-client travel unpaid, the worker’s **effective hourly rate** will usually fall below the NLW once the travel time is factored in. This is a breach of the minimum wage rules. ### Practical consequence Example (simplified): - 6 hours of client visits paid at NLW. - 1 hour of unpaid travel between visits. - Total working time = 7 hours. - Pay ÷ 7 hours < NLW → unlawful underpayment. HMRC (which enforces the NLW) has pursued many care providers for exactly this practice. Workers can also bring claims in the employment tribunal for up to 6 years of arrears plus penalties. ### What you must do - Record and pay for all travel time between clients (or use a system that guarantees the effective rate never drops below the NLW). - Keep accurate records of both visit time and travel time. This is a well-established area of enforcement; continuing the current arrangement risks back-pay claims, penalties, and reputational damage.

Enhanced response (with ZPI)

**No, this is not lawful.** Under the National Minimum Wage Act 1998 and the National Minimum Wage Regulations 2015, time spent travelling between client visits during a working day counts as **working time** for National Living Wage (NLW) purposes. ### Key rules that apply here - **Travel between assignments** is treated as hours worked when the worker is travelling from one client to another as part of their duties. - You must include this travel time when calculating whether the worker has received at least the NLW for every hour worked. - If the unpaid 30-minute travel periods mean the worker’s effective hourly rate drops below the NLW, you are underpaying them. ### Practical effect Suppose a care worker is paid the NLW for 6 hours of direct care time but spends an extra 2 hours travelling between visits. Their actual working time is 8 hours. Paying them only for the 6 hours will almost always result in an hourly rate below the NLW once the travel time is factored in. ### What you must do - Pay for the travel time at least at the NLW rate (or include it in a salary or other arrangement that still meets the NLW when averaged). - Record the travel time accurately. - Many care providers either: - Pay a fixed travel allowance per visit, or - Build an average travel time into the paid hours, or - Pay for actual travel time. Failing to do so can lead to back-pay claims, enforcement action by HMRC, and potential employment tribunal claims. This is a very common issue in the care sector and one that HMRC actively investigates. **Recommendation**: Review your current payment structure with an employment lawyer or payroll specialist who understands the care sector, and adjust pay so that all working time (including inter-client travel) is covered at or above the NLW.

Grader chain

Each grader reads the same baseline + enhanced pair and casts an independent verdict. Disagreement is the framework's own signal — not noise to be averaged away.

V1samba/Meta-Llama-3.3-70B-Instruct
Better
V4qwen2.5-coder-3b-instruct
Better
V5openrouter/qwen/qwen3-235b-a22b-2507
Better
V7qwen2.5-coder-7b-instruct
Better
V8openai/gpt-4.1
Better
V9anthropic/claude-opus-4-7
Same
V12openai/gpt-4o
Better

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