PIP back-pay calculator

PIP back-pay accrues from your claim date (or assessment-completion date in some circumstances) and is paid as a single lump sum after a successful decision. Typical DWP assessment lag in 2026 is 16 weeks; mandatory reconsideration and tribunal cases can extend much longer.

All figures on this page are taken from Benefit and pension rates 2026 to 2027 (DWP, published April 2026) and the Universal Credit and Personal Independence Payment Act 2025. Author: Oliver Wakefield-Smith. Last full review: 22 June 2026. Next scheduled review: April 2027 (post-uprating). See the full sources register.

Worked example: enhanced on both components, 16-week lag

Enhanced Daily Living + enhanced Mobility = £187.45 per week. A 16-week assessment lag pays £2,999.20 as a lump sum.

Worked example: standard Daily Living only, 24-week lag

Standard Daily Living = £73.90 per week. A 24-week assessment lag pays £1,773.60 as a lump sum.

Use the live estimator

The descriptor-aware estimator includes a back-pay input. Pick your descriptors, then enter your assessment lag in weeks and the lump sum is shown.

Is back-pay taxable or means-tested?

PIP is not subject to income tax, including the back-pay lump sum. For most means-tested benefits, the lump sum is disregarded as capital for the first 12 months. After 12 months, any remaining money counts toward the capital limit. If you receive a large back-pay payment, the DWP usually writes to confirm the disregard.

Mandatory reconsideration and tribunal wins

If your award is increased on mandatory reconsideration or at a First-tier Tribunal, back-pay still accrues from your original claim date. Tribunal wins can produce two-figure lump sums; payment is usually made within four weeks of the decision.

How the lump sum is paid

DWP pays the lump sum in a single transfer to the bank account on file. Subsequent payments revert to the 4-week cycle (£749.80 every 4 weeks for the enhanced + enhanced combination).

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