The twelve-month rule that decides whether a condition counts
A PIP claim is not assessed on how bad a single day is. It is assessed against a required period — three months already behind the claimant, nine months still expected ahead — and a recent injury or operation often fails the second half of it.
Of all the reasons a PIP claim is turned down, this is the one least likely to appear in general explanations of the benefit. The descriptors can be met, the evidence can be sound, and the claim can still fail because of a timing condition that sits underneath the scoring and is applied before it.
Two tests, pointing in opposite directions
The required period condition has a backward-looking part and a forward-looking part, and both have to be satisfied:
| Part | What it asks | Length |
|---|---|---|
| Backward test | Have the relevant difficulties already applied? | The 3 months before the claim |
| Forward test | Are they likely to continue to apply? | At least 9 months after |
Together these produce the twelve-month framing commonly quoted: difficulties expected to last at least 12 months from when they started. The two halves are assessed separately.
The backward test is the reason somebody cannot claim on the day a condition starts. The forward test is the reason somebody cannot claim for a difficulty that is expected to resolve. A claim has to sit in the middle: established, and expected to persist.
Why recent injuries and operations fail
This is the common case. Somebody has a hip replacement, or breaks a wrist, or has major surgery with a long recovery. For three or four months the difficulties with washing, dressing, preparing food and moving around are real and would score points.
But the clinical expectation is recovery. If the difficulties are not likely to continue for at least nine months from the point the claim is assessed, the forward test is not met, and the award does not follow however convincing the current difficulties are. The assessment is not calling the difficulties into question; it is applying a condition about duration.
The mirror image also holds. A progressive condition satisfies the forward test readily, because continuation is the expectation rather than the exception.
Fluctuating conditions, and the majority-of-days rule
Many conditions vary from week to week, and the criteria handle that by asking how often a descriptor applies rather than whether it ever applies. Where a descriptor applies on more than half the days in the relevant period, it is treated as applying.
That interacts with the required period in a way worth understanding. A condition that produces severe difficulty on two days in seven, consistently, over a year, may score differently from one that produces moderate difficulty on five days in seven. The scoring framework is set out in the points decide a PIP award, not the diagnosis.
In practice this makes a record of frequency more valuable than a description of the worst day. A diary covering several weeks, noting what was and was not possible, speaks directly to the question the rules ask.
The exception for terminal illness
Claims made under the special rules for end of life are treated differently: the required period condition does not apply, and claims are handled with priority. The supporting medical evidence follows a defined process, and the usual waiting period is not imposed. The official guidance sets out how those claims are made.
Attendance Allowance uses a different clock
Attendance Allowance has its own qualifying period rather than PIP's three-and-nine structure, and the official guidance sets out the period and its exceptions, including the special rules for terminal illness. Anyone over State Pension age is reading a different set of timing rules as well as a different test — see what Attendance Allowance asks that PIP does not.
A separate set of conditions about where somebody has been
The required period is about the condition. There is a distinct set of conditions about the claimant: being present in Great Britain, being habitually resident, having been present for a defined proportion of recent years, and not being subject to immigration control in a way that excludes entitlement.
These are independent of the health test. Somebody can satisfy every descriptor and still not qualify on residence, and vice versa. They matter particularly for people who have recently returned to the UK after living abroad, and the detail is published in the eligibility guidance.
A worked example of the timing
Take someone whose arthritis worsened noticeably in January.
- Claiming in February — the backward test is not yet satisfied, because the difficulties have not applied for three months.
- Claiming in April — the backward test is satisfied. The forward test then asks whether the difficulties are likely to continue for at least nine more months. For a long-term degenerative condition, that is normally the expectation.
- The same person after a knee operation in April, with difficulties expected to improve substantially within six months — the backward test may be satisfied by the pre-existing condition, but difficulties arising from the operation alone would not satisfy the forward test.
An illustration of how the two parts of the required period condition operate. It is not a prediction of any decision — only a DWP decision maker applying the full criteria can determine entitlement.
When the award itself is time-limited
Satisfying the required period does not produce a permanent award. PIP awards are commonly made for a fixed period with a review date, chosen with reference to whether the condition is expected to change. Where circumstances are unlikely to change, a longer award with a lighter review is possible. The decision notice states the period and the review arrangements, and it is worth reading for both.
Changes of circumstances have to be reported during an award, in both directions. A deterioration can support a request to look at the award again; an improvement has to be reported too.
What this means before claiming
Two questions settle most of it. Have the difficulties already applied for three months? And are they expected to continue for at least nine more? Where the answer to the second is no, a claim is likely to fail on the required period regardless of how strong the current evidence is — and where a condition is expected to become long-term, the useful step is to establish the record of frequency now, because that is what the claim will later be assessed on.
None of this involves income or savings. The duration test and the activity test are the two things being measured, which is the point made in this PIP rule and why income is not the deciding factor.
Official sources
General information. This article explains published rules as they stood on 18 October 2026. It is not an eligibility decision, a benefits calculation, or financial, legal or medical advice, and it cannot establish what any individual is entitled to. Figures quoted are the published rates or modelled examples, not a statement of what a particular reader would receive.
SK MMP is an independent information publisher operated by KA Consulting UG. It is not connected to the Department for Work and Pensions, HM Revenue & Customs, the Scottish Government or any other public body, and it cannot accept, process or progress a claim. For a decision on your own circumstances, use the official service at GOV.UK or take independent advice.