Whiplash and another injury —
how the claim works.
A mixed injury claim involves both a whiplash injury — valued by the fixed government tariff — and another injury that is assessed under a different framework entirely. Understanding the difference between the two determines how the claim is valued.
Most people in a road traffic accident think of their injuries as a single thing. A mixed injury claim treats them as two separate components, each valued differently, with the total figure made up of both.
The whiplash element is fixed by the government tariff — the prognosis period in the medical report determines the band, and the band determines the figure. The non-whiplash element — a knee injury, a wrist injury, a diagnosed psychological condition — is assessed using the Judicial College Guidelines, which produce a range rather than a fixed amount.
Mixed injury claims are the most common claim type on the OIC portal — approximately 69% of claims in the final quarter of 2024 involved mixed injuries. They are also the most operationally complex. Understanding what makes them different from a straightforward whiplash claim is the most useful thing a claimant in this situation can do early.
What a mixed injury claim is
The distinction between tariff and non-tariff injuries determines how the claim is valued. Understanding it changes what the process involves.
Under the Civil Liability Act 2018, compensation for whiplash injuries is set by a fixed government tariff. The amount is determined by one variable: the prognosis period in the medical report. The tariff applies to soft tissue injuries of the neck, back and shoulder caused by a road traffic accident. It does not apply to injuries outside this definition.
The tariff is fixed. A solicitor cannot negotiate above it. The insurer cannot offer below it. The prognosis period determines the band, and the band determines the figure.
Injuries outside the whiplash definition — knee injuries, wrist injuries, shoulder injuries that go beyond soft tissue, fractures, head injuries, significant psychological diagnoses — are not valued using the tariff. They are assessed under the Judicial College Guidelines (JCG), which provide ranges rather than fixed figures. The specific value depends on the type of injury, its severity and its impact on daily life.
Because non-tariff injuries are not fixed, they are subject to more negotiation. The insurer will make an assessment. That assessment can be challenged. The gap between a well-documented and a poorly-documented non-tariff injury can be significant.
A mixed injury claim is any claim where both a tariff injury and a non-tariff injury are present. The tariff element is valued using the fixed schedule. The non-tariff element is valued separately. Both are included in the same claim and both are recoverable — they are assessed independently, not as a combined figure.
Mixed injuries are more common than most people realise. In the final quarter of 2024, approximately 69% of OIC claims involved mixed injuries. A claimant who sustains whiplash alongside a knee injury from the impact, or whiplash alongside a diagnosable psychological condition, is making a mixed injury claim — even if they think of it simply as ‘a whiplash claim’.
How the two components are valued
Two separate valuation frameworks, applied to two separate injury types, producing two separate figures that make up the total claim.
The tariff applies to the whiplash element in the same way as a straightforward whiplash claim. The medical report records the prognosis period for the soft tissue injury. That period is applied to the government tariff table to produce a fixed compensation figure. The figure does not change based on who manages the claim or how the negotiation proceeds.
For accidents on or after 31 May 2025, the tariff ranges from £275 (up to 3 months) to £4,830 (18–24 months). For accidents before that date, the figures range from £240 to £4,215. The accident date determines which tariff applies.
Non-whiplash injuries are assessed against the Judicial College Guidelines — a framework used by courts and insurers to value injuries by type and severity. Unlike the tariff, JCG values are ranges rather than fixed points. A knee injury, for example, falls within a bracket that spans from minor to serious, and the specific position within that bracket depends on the medical evidence.
Because these figures are not fixed, the medical report’s description of the non-whiplash injury matters more. How the injury is classified, how its severity is described and how its impact on daily life is recorded all influence where within the JCG range the injury is valued. An accurate, complete account at the medical examination is as important for the non-tariff element as for the tariff element.
Financial losses caused by the accident — lost earnings, travel costs, treatment expenses, care costs — are separate from both the tariff and the JCG assessment. They sit on top of both injury components and are not capped by either. Two people with identical injuries can have very different total settlements depending on their documented financial losses.
In a mixed injury claim, the financial losses element can be substantial — particularly where a non-whiplash injury required private treatment, extended time off work, or ongoing care. These losses are recoverable but they require evidence.
The tariff covers the whiplash.
It does not cover everything else.
A first offer in a mixed injury claim often reflects the tariff figure alone — the whiplash element, calculated mechanically from the medical report. The non-whiplash element and the financial losses may not appear in the first offer at all. Understanding that the first figure is a starting point, not a complete assessment, is the most important thing to know at the offer stage of a mixed injury claim.
The portal threshold — when a claim exits the OIC process
The OIC portal is for claims valued under £5,000 in injury damages. Mixed injury claims frequently approach or exceed this threshold — and the consequences of crossing it are significant.
The £5,000 limit applies to the injury damages element of the claim — the tariff payment plus any non-tariff injury damages. Financial losses are not included in this calculation. A claim where the whiplash tariff produces £2,335 (12–15 months) and the non-whiplash injury adds a further £3,000 in damages already exceeds the portal threshold.
When a claim exceeds the threshold, it exits the OIC portal and moves to a different process — one where legal costs can be recovered from the defendant if the claim succeeds. This fundamentally changes the economics: a solicitor’s involvement no longer costs the claimant a percentage of their compensation, because those costs are recoverable from the other side.
Whether a claim belongs in the OIC portal or outside it is one of the most consequential early decisions in a mixed injury claim. A claim submitted through the portal that should have exited it — because its total value exceeded the threshold — may settle for less than it would have outside the portal, and the claimant may never know the difference.
Assessing the full picture early — tariff element, non-tariff element, financial losses, and whether the total approaches £5,000 — is the most useful thing to establish before submitting. For claims where this is unclear, regulated legal advice at the outset is the appropriate route.
Mixed injury claims have created significant operational difficulties within the OIC portal. ACSO has estimated that at least 500,000 mixed injury claims remain stuck in the portal — cases where the non-tariff element has made settlement more complex than the portal’s standard process was designed to handle.
This is not a reflection on the claimants involved. It reflects the design tension in the portal: a system built for straightforward whiplash claims processing a large volume of cases that do not fit that model. Where a mixed injury claim involves significant non-tariff injury, understanding this context explains why the process may feel slower and more uncertain than a standard claim.
Psychological injury in a mixed claim
Psychological symptoms are among the most commonly missed elements in mixed injury claims. Whether they fall within or outside the tariff depends on their severity — a distinction the medical examination determines.
Where psychological symptoms — anxiety about driving, low-level distress, occasional disrupted sleep — accompany a whiplash injury and are secondary to it, the tariff includes a slightly higher band. This is the ‘whiplash with minor psychological injury’ tariff. These symptoms do not require a separate diagnosis. They are assessed as part of the same medical examination.
The additional amount under this band ranges from £25 to £145 depending on the prognosis period. The psychological component adds to the whiplash figure — it does not produce a separate award.
Where psychological symptoms are more serious — a clinical diagnosis of PTSD, a driving phobia requiring formal treatment, a diagnosable depressive or anxiety disorder — the injury exits the minor psychological category entirely. These conditions are assessed under the JCG framework rather than the fixed tariff, and the values can be substantially higher.
Psychological injuries lasting beyond 12 months also fall outside the tariff structure as described. Where the psychological impact of an accident is significant, describing it fully at the medical examination is the step that determines whether it is assessed under the tariff or separately under the JCG.
Related guidance
Mixed injury claims involve more moving parts than a straightforward whiplash claim. These pages cover the key elements.
In a mixed injury claim, the medical report must accurately describe both injury types. What to check before approving it — and why both the whiplash and the non-whiplash element need careful review.
How compensation is structured in a mixed claim — the tariff element, the non-tariff element, financial losses, and what determines the total figure.
For most mixed injury claims — particularly where the non-tariff element is significant or the claim may exceed the portal threshold — the honest answer is different from a straightforward whiplash claim.
The complete guide to whiplash claims — the tariff, how it works, what calculators get wrong, and when a claim may be worth more than the tariff suggests.
Last reviewed: 19 March 2026
ClaimTalk provides general guidance only. Not legal advice. Not affiliated with the Official Injury Claim portal or any government body.
ClaimTalk cannot respond to questions about individual claims. Mixed injury claims involve complexity beyond standard OIC guidance. Regulated legal advice is worth seeking where the non-whiplash element is significant.