What is industrial injuries disablement benefit?
Industrial injuries disablement benefit is a weekly cash payment made by the Department for Work and Pensions (DWP) to workers who have been disabled by a workplace accident or by a prescribed occupational disease contracted in the course of employment. The disablement benefit is established under the 1992 Act and the detailed qualifying conditions are set out in the Social Security (Industrial Injuries) (Prescribed Diseases) Regulations 1985.
IIDB is entirely separate from civil compensation. It is not paid by an employer or their insurer. It is not a damages award. It is a state benefit funded through National Insurance contributions, available to workers whose employment caused a qualifying disability. You do not need to prove that your employer was negligent to receive IIDB. You need to show that your disability arose from a workplace accident or from a disease prescribed for your occupation.
IIDB is not means-tested. Your income, savings, and any pension you receive do not affect your eligibility. It is also non-taxable.
Who qualifies for industrial injuries disablement benefit?
Industrial injuries disablement benefit is available to employed earners who have been disabled by:
A workplace accident. An accident arising out of and in the course of employment as an employed earner. Self-employed people cannot claim IIDB for workplace accidents. You must have been an employee, not a contractor or sole trader.
A prescribed occupational disease. The Prescribed Diseases Regulations 1985 list over 70 diseases linked to specific occupations. Each prescribed disease is identified by a letter-and-number code. The most relevant for workplace injury claims include:
- A10: occupational deafness (noise-induced hearing loss), in occupations involving regular exposure to loud noise
- A11: vibration white finger (hand-arm vibration syndrome), in occupations involving use of vibrating tools
- D1: asbestosis, in occupations involving asbestos processing or handling
- D3: mesothelioma, arising from any asbestos exposure in employment
- D7: occupational asthma caused by a substance listed in the Regulations, in occupations involving exposure to that substance
- D8: primary carcinoma of the lung with asbestosis or bilateral diffuse pleural thickening
To claim for a prescribed disease, you must have worked in a qualifying occupation for the relevant disease. The DWP assesses both whether your diagnosis meets the definition and whether your employment falls within the prescribed occupation. You cannot claim IIDB for a disease that is not on the prescribed list, even if it was caused or contributed to by your work.
Self-employed workers cannot claim IIDB for occupational diseases, unless their work falls within a specific class of employment covered by the Regulations.
How is the disablement benefit percentage calculated?
The level of industrial injuries disablement benefit depends on the assessed percentage of disability caused by the work-related accident or disease. The assessment is carried out by a DWP-approved healthcare professional, typically a doctor with occupational medicine expertise.
The disability percentage (known as the "degree of disablement") reflects the impact of the condition on the claimant's life as a whole, compared with a person of the same age and sex without the disability. It is not simply a measure of how severe the physical injury is. Factors taken into account include loss of function, pain, restriction of activities, and the effect on everyday life.
Weekly payments of industrial injuries disablement benefit apply at the following thresholds:
- 14% or above: a weekly payment is made, scaled to the percentage of disablement (100% disablement equals the full weekly rate, currently in the region of £200 per week; 20% disablement attracts a proportionately lower rate)
- Below 14%: for most prescribed diseases, a lump-sum gratuity is paid instead of weekly payments
- Deafness (A10): the minimum threshold is 20% before any payment is made; below 20% no payment is due
The initial assessment may be for a fixed period (a provisional assessment) or for life (a final assessment). Claimants with progressive conditions such as mesothelioma or asbestosis may have their assessment reviewed as the condition worsens.
Does industrial injuries disablement benefit stop at 65?
No. Industrial injuries disablement benefit does not stop at age 65 or at state pension age. It is not an age-related benefit and it is not affected by reaching pension age or by drawing a state pension or occupational pension.
IIDB continues for as long as the qualifying disability persists. For permanent conditions such as mesothelioma, asbestosis, total deafness, or severe HAVS, the disablement benefit continues for life once awarded. For conditions that may improve or resolve, the DWP may issue a fixed-term assessment and review the position at the end of the period.
The fact that you are retired when you are first diagnosed with an occupational disease does not prevent you from claiming industrial injuries disablement benefit, provided the disease was contracted in the course of qualifying employment during your working life. Many asbestosis and NIHL claimants are diagnosed years or decades after they left the job that caused the condition.
Is industrial injuries disablement benefit paid for life?
For permanent conditions, yes. Where a final assessment is made at a given percentage of disability, and the condition is permanent, the disablement benefit is payable for life at that rate.
For progressive conditions such as mesothelioma, asbestosis, or severe HAVS, the assessment may be reviewed if the condition worsens. A reassessment can result in a higher disability percentage and a higher weekly payment. Claimants or their representatives can request a reassessment where medical evidence shows deterioration.
For conditions that may partially resolve (such as some forms of occupational asthma where sensitisation has occurred but symptoms are managed with medication), the DWP may issue a provisional assessment for a defined period and then reassess. Even where a provisional assessment is made, industrial injuries disablement benefit continues throughout the period of the assessment, and a new claim can be made at the end of the period.
How to claim industrial injuries disablement benefit
Claims for industrial injuries disablement benefit are made on the following forms, available from the DWP:
- BI 100 (industrial accident): use this form if your disability resulted from a workplace accident
- BI 100 PD (prescribed disease): use this form if your disability resulted from a prescribed occupational disease; you must specify the disease code (for example, A11 for HAVS, D3 for mesothelioma)
Completed forms are submitted to the DWP Industrial Injuries Disablement Benefit Centre. The DWP will arrange a medical assessment to determine your degree of disablement. You should provide supporting evidence including GP records, specialist reports, and details of your employment history.
The DWP's decision can be appealed to an independent First-tier Tribunal (Social Security and Child Support) if you believe the disability percentage has been assessed too low or the claim has been wrongly refused.
There is no time limit specified for making an initial IIDB claim in the same way as the three-year limitation period for civil compensation claims. However, benefit is generally payable only from the date of claim, not backdated to the date of diagnosis, so it is in a claimant's interest to apply as soon as possible after diagnosis. For the time limits that apply to civil compensation claims for the same condition, see our time limits page.
How disablement benefit works alongside civil compensation
Industrial injuries disablement benefit and civil compensation for a workplace injury or occupational disease are separate schemes that operate in parallel. Claiming one does not affect eligibility for the other, and receiving one does not reduce the other's headline award.
Civil compensation recovers loss of earnings, medical and care costs, general damages for pain and suffering, and future losses. It is paid by the defendant employer's liability insurer. For a guide to what civil compensation covers, see our industrial injury compensation guide.
Under the Social Security (Recovery of Benefits) Act 1997, certain state benefits including IIDB are listed as recoverable benefits. Where a civil compensation payment is made, the defendant's insurer must account to the DWP for any recoverable benefits paid to the claimant during the relevant period. In practice, this means the insurer pays both the compensation to the claimant and the recoverable benefits to the DWP. The claimant's total net recovery is not reduced by the recovery scheme: the insurer's overall liability is higher, not the claimant's award lower. A solicitor will handle the Certificate of Recoverable Benefits process as part of the settlement.
Most civil claims for industrial disease are funded on a Conditional Fee Agreement. For a guide to how no-win-no-fee funding works in industrial disease cases, see our no-win-no-fee page. For a guide to how the civil claim process works alongside IIDB, see our how claims work guide.
This guide is for general information only and does not constitute legal advice. IIDB eligibility, assessment, and interaction with civil compensation involve questions of fact and law that depend on individual circumstances. Benefit rates are subject to annual change. For advice about your specific situation, speak to a regulated solicitor. You can find one through the Find a Solicitor service (Law Society) or through APIL.
Frequently asked questions
Does receiving IIDB stop me from making a civil compensation claim?
No. IIDB is a state benefit administered by DWP. A civil compensation claim is brought against an employer or their insurer in the courts. They are entirely separate systems. Receiving IIDB does not reduce, prevent, or delay a civil claim. However, if a civil claim succeeds, the Compensation Recovery Unit (CRU) will recoup the value of IIDB payments made from the compensation award.
What is the IIDB disablement assessment and how does it work?
You are assessed by a DWP medical panel against the degree of disablement caused by the prescribed disease or accident. Disablement of 14% or more generally qualifies for a weekly benefit payment; lesser disablement may qualify for a lump sum. The assessment considers the effect on daily life, not just medical diagnosis.
Which diseases qualify for IIDB?
The DWP publishes a list of prescribed diseases, each linked to specific occupations. Common examples include: deafness (NIHL) in noisy occupations, pneumoconiosis and mesothelioma in asbestos-related occupations, HAVS (D43), occupational asthma, and carpal tunnel syndrome. If your condition appears on the list and you worked in the qualifying occupation, you can apply.
What if my IIDB claim is refused?
You have the right to ask for a mandatory reconsideration and, if still refused, to appeal to the First-tier Tribunal (Social Entitlement Chamber). Citizens Advice provides free guidance on the appeal process. Refusal of IIDB does not affect your right to bring a separate civil claim against your employer.
Browse every plain-English guide in the work accident guides hub, or read the main guide to how a claim works.
This guide is for general information only and does not constitute legal advice. Every claim turns on its own facts. For advice about your specific situation, speak to a regulated solicitor.