You may qualify for PIP if a physical or mental health condition affects your daily living or mobility, and the difficulties have lasted at least three months and are expected to continue for at least nine more. Eligibility is based on how your condition affects specific activities, not simply on your diagnosis, income or whether you work. You usually need to be aged 16 or over and meet residence and presence rules; Scotland uses Adult Disability Payment instead. Check the latest criteria on GOV.UK, as the Department for Work and Pensions decides each claim using your application and any assessment.