The PIP 50% rule means a descriptor applies to you if it is satisfied on more than half of the days in the required period. Many conditions change from day to day, and PIP has a specific rule for this.
Key points
✓PIP scores your ability over about 12 months, not on a single good or bad day
✓A descriptor applies if it is satisfied on over 50% of the days of the required period (regulation 7)
✓For a new claim the required period is the 3 months ending with the prescribed date and the 9 months beginning with the day after it (regulation 7)
✓If no single descriptor is satisfied on over 50% of the days but two or more together are, the descriptor satisfied for the greatest proportion of days applies (regulation 7)
✓The PIP2 form asks how often you have each difficulty and asks you to tell DWP about both good and bad days
The 50% rule, in plain terms
Regulation 7 of the PIP Regulations 2013 says that where one descriptor is satisfied on over 50% of the days of the required period, that descriptor applies. A descriptor is satisfied on a day in the required period if it is likely that, if you had been assessed on that day, you would have satisfied it.
DWP's guidance for assessors says that a “snapshot” view of your condition on a particular day at a particular time is not an adequate assessment.
Regulation 4 says you are assessed as satisfying a descriptor only if you can do the activity safely, to an acceptable standard, repeatedly and within a reasonable time period. Our reliability test guide explains each of those four tests.
What period is looked at? The 12-month rule
The “more than 50% of days” test is not measured over a single week. For a new claim, regulation 7 sets the required period as the 3 months ending with the prescribed date together with the 9 months beginning with the day after it:
The 3 months ending with the prescribed date, which for a new claim is the date of claim or, if later, the date the conditions were first met
The 9 months beginning with the day after the prescribed date
GOV.UK describes this as expecting to have difficulty more than half of the days over a 12-month period. DWP's guidance for assessors says the descriptor choice should be based on consideration of a 12 month period, and that assessors should broadly consider your likely ability in the 3 months before the assessment and in the 9 months after.
Once you have an award, regulation 7 applies the same 3 months and 9 months to each day of the award in most cases. In general, assessors record function over an average year for conditions that fluctuate over months, per week for conditions that fluctuate by the day, and by the day for conditions that vary over a day.
When your difficulty changes in degree, not just on or off
Regulation 7 sets out what happens when more than one descriptor in an activity is satisfied on different days:
If two or more descriptors in the same activity are each satisfied on over 50% of the days, the one that scores the higher or highest number of points applies
If no descriptor is satisfied on over 50% of the days but two or more descriptors that score points are satisfied for periods which, added together, amount to over 50% of the days, the descriptor satisfied for the greater or greatest proportion of days applies
If they are satisfied for the same proportion of days, the one that scores the higher or highest number of points applies
DWP's guidance gives an example: if descriptor B is likely to be satisfied on 40% of days and descriptor C on 30% of days, descriptor B should be chosen.
The guidance also says that where there is variability, the assessor should consider what the need is on the majority of days. For example, if you can usually prepare food unaided but occasionally need an aid because of a particularly acute period in your condition, you will not be assessed as needing an aid, as it is not needed on the majority of days.
How to put the 50% rule to work
The PIP2 form asks about each activity separately. These are the things it asks you to tell DWP:
For each difficulty, how often you have it, covering both good and bad days
What the difficulty is, how often you have good days and bad days, how or why your condition varies over the course of a day, week or year, and when you started to have difficulties
How you manage each activity, including any aids or specialist equipment you use, help you get from someone else, and help you need but do not get
Whether you can complete each activity safely, within an acceptable time, to an acceptable standard and as often as you need to
Regulation 4 defines “safely” as in a manner unlikely to cause harm to you or another person, either during or after completion of the activity. DWP's guidance also tells assessors to consider whether you can repeat a task on subsequent days. For example, you may be able to meet the “moving around” criteria one day, but the exertion of doing so means you are unable to the following day.
Good days, bad days and the assessment
DWP's guidance tells assessors to ask what you can do on good days and bad days, and how many good and bad days you have over a period of time. It also tells them to record how frequent the fluctuations are, how long exacerbations last and, on balance, how many good days or weeks and how many bad ones you experience over a specific period of time.
If you think the report has made an error or missed important evidence, or you disagree with the reasons for the decision, you can ask for mandatory reconsideration.
See our guides on challenging a PIP assessment report and the PIP appeal process. Regulation 7 of the PIP Regulations (Northern Ireland) 2016 and regulation 10 of the Adult Disability Payment regulations in Scotland say the same: where one descriptor is satisfied on over 50% of the days of the required period, that descriptor applies.
It is the rule in regulation 7 of the PIP Regulations 2013 that where one descriptor is satisfied on over 50% of the days of the required period, that descriptor applies. A descriptor is satisfied on a day in the required period if it is likely that, if you had been assessed on that day, you would have satisfied it.
Over what period is the 50% rule measured?
For a new claim, the required period is the 3 months ending with the prescribed date together with the 9 months beginning with the day after it, about 12 months in all. DWP's guidance says assessors should broadly consider your likely ability in the 3 months before the assessment and in the 9 months after.
My condition varies, which descriptor do I get?
If one descriptor is satisfied on over 50% of the days, that descriptor applies. If two or more are each satisfied on over 50% of the days, the one that scores the higher or highest number of points applies. If none is satisfied on over 50% of the days but two or more descriptors that score points are satisfied for periods which, added together, amount to over 50% of the days, the descriptor satisfied for the greater or greatest proportion of days applies, or the higher scoring one if they are satisfied for the same proportion.
How do I prove how many bad days I have?
The PIP2 form asks, for each difficulty, how often you have it, and asks you to tell DWP about both good and bad days. It also asks how or why your condition varies over the course of a day, week or year. DWP's guidance tells assessors to record how frequent the fluctuations are, how long exacerbations last and how many good and bad days you experience over a specific period of time.
Know Your Rights UK. "PIP and Fluctuating Conditions: The 50% Rule Explained." Know Your Rights UK, https://www.knowyourrightsuk.com/benefits/pip/fluctuating-conditions