PIP Back Pay Calculator guide
PIP Back Pay Calculator: How Much PIP Arrears Will You Get?
Use our PIP back pay calculator to estimate arrears after a new claim, mandatory reconsideration or tribunal win, using 2026/27 PIP rates and earlier years' rates.
By the AllCalculator editorial teamUpdated 15 October 20263 min read
Personal Independence Payment (PIP) decisions can take months, and many people only get the right award after a mandatory reconsideration or a tribunal appeal. When that happens, the Department for Work and Pensions (DWP) pays back pay, also called arrears, for the weeks you should have been getting PIP. It's often a sizeable lump sum, and it helps to know roughly what to expect.
Our PIP Back Pay Calculator estimates it for you. This guide explains how back pay is worked out and when it's paid.
PIP rates for 2026/27
PIP has two parts, and each is paid at a standard or enhanced rate. The weekly rates for 2026/27 are:
| Component | Standard rate | Enhanced rate |
|---|---|---|
| Daily living | £76.70 | £114.60 |
| Mobility | £30.30 | £80.00 |
So the most you can get is £194.60 a week, paid every four weeks. Rates go up each April, and the calculator uses the right rate for each tax year your back pay covers.
How far back PIP back pay goes
How far back your arrears go depends on why they're being paid:
- New claim: back to the date you made your claim, usually when you phoned or applied to start it.
- Award stopped or reduced: back to the date your PIP was stopped or reduced.
- Award increased after a review: usually from the date of the review decision being challenged.
Back pay normally runs until the date your new payments start. Your decision letter shows the exact dates.
How to use the calculator (PIP Back Pay Calculator)
- Enter the date back pay starts from.
- Enter the date it runs to, or leave it blank to use today.
- Choose your new daily living and mobility awards.
- If you were already getting some PIP during that time, choose what you were already paid. For a new claim, leave these at None.
The calculator shows your estimated back pay, your new weekly and four-weekly amount, and a breakdown by tax year.
A worked example
With the calculator's default settings, back pay starts on 3 November 2025 after a new claim, and the award is standard daily living and enhanced mobility:
- From 3 November 2025 to 5 April 2026, the 2025/26 rates apply: £73.90 + £77.05 = £150.95 a week.
- From 6 April 2026, the 2026/27 rates apply: £76.70 + £80.00 = £156.70 a week.
Each period is multiplied by the number of weeks it covers, and the two are added together.
If you were already getting standard daily living and your mobility award was added after an appeal, only the mobility part counts as back pay.
When will I get my back pay?
After a successful mandatory reconsideration, DWP usually pays arrears within a few weeks of the new decision. After a tribunal win, DWP has to implement the decision, which can take a little longer. Arrears are normally paid as a single lump sum into the same account as your PIP.
Does PIP back pay affect other benefits?
PIP itself isn't taxed and isn't counted as income for means-tested benefits like Universal Credit. If you get means-tested benefits, PIP arrears are usually ignored as savings for 52 weeks after you receive them, so a large lump sum won't immediately reduce your other benefits.
A new or higher PIP award can also open the door to extra help, such as a disability premium, Carer's Allowance for someone who looks after you, or a Blue Badge. Some of these can be backdated too, so ask about them once your PIP decision changes.
Frequently asked questions
Is PIP back pay paid in one lump sum?
Usually, yes. DWP normally pays all the arrears at once into your bank account, separately from your regular four-weekly payment.
How long does PIP back pay take after a tribunal?
It varies, but DWP usually implements a tribunal decision and pays arrears within a few weeks. If you've heard nothing after about six weeks, contact the PIP enquiry line.
Is PIP backdated to when my condition started?
No. Back pay usually starts from the date of your claim, or the date your award was stopped or reduced, not from when your condition began.
Is PIP back pay taxable?
No. PIP isn't taxable, and neither are its arrears.
Back pay can be a large amount, so it's worth checking that the figure DWP pays matches what you expect. Use the PIP Back Pay Calculator to estimate yours, and ask Citizens Advice if something doesn't add up.
Sources and further reading
- GOV.UK: Personal Independence Payment – how much you'll getgov.uk
- GOV.UK: Challenge a benefit decision (mandatory reconsideration)gov.uk
- GOV.UK: Appeal a benefit decisiongov.uk
- Citizens Advice: Challenging a PIP decisioncitizensadvice.org.uk
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This guide is general information to help you understand your options. It isn't financial, tax, legal or building advice and doesn't take your personal circumstances into account. Figures were checked when the guide was last updated and can change, so confirm anything important with GOV.UK, HMRC, a regulated adviser or a qualified tradesperson.