Dementia and Driving: What the Law Requires, and How to Talk About It

For a lot of families, this is one of the hardest conversations of the whole journey, harder in some ways than the diagnosis itself. Driving means independence, identity, and freedom, and raising it can feel like taking all of that away. But it's also a genuine legal matter, not just an emotional one, and knowing the actual rules first can make the conversation easier, not harder.

The legal bit, first

If someone holds a UK driving licence and is diagnosed with dementia, they have a legal duty to tell the DVLA (or the DVA in Northern Ireland) as soon as the diagnosis is confirmed, not at the next licence renewal. This is their legal responsibility, not the GP's or the family's, though a GP may explain it clearly at diagnosis.

Not notifying can lead to a fine of up to £1,000. It's also a separate legal requirement to tell the car insurer directly, and failing to do that can invalidate the insurance policy entirely, sometimes retroactively if a claim is ever made.

A diagnosis is not automatically the end of driving. Roughly one in three people with a dementia diagnosis continue driving safely for a time. What matters is whether it's currently safe, not the diagnosis itself.

What happens after the DVLA is told

The DVLA reviews the notification alongside medical information, usually gathered from the GP or specialist via a form called CG1. Depending on what that shows, one of a few things happens:

• Driving can continue as normal, sometimes with a shorter licence renewal period so things are reviewed again sooner
• A practical driving assessment may be requested, carried out by an approved mobility assessment centre: cognitive checks, vision, reaction time, and an on-road drive with a dual-control instructor
• A restricted licence may be issued, for example limited to familiar local routes or daylight hours only
• The licence may need to be surrendered, either because the DVLA decides it's unsafe, or because the person chooses to give it up themselves ("voluntary surrender")

None of this happens overnight, and it isn't designed to catch anyone out. The DVLA's approach is generally supportive when a diagnosis is reported promptly and honestly.

Vascular dementia is slightly different

If the diagnosis is vascular dementia specifically, the same rule applies, the DVLA must still be told, but there's an extra layer worth knowing about, since vascular dementia is often linked to strokes or TIAs (mini-strokes), which carry their own separate driving rules. After a stroke or TIA, there's a mandatory driving stop of at least one month, regardless of the dementia diagnosis, and this can be longer if there have been multiple strokes, or if problems with vision, movement, or memory haven't resolved by the one-month mark. If the vascular dementia developed after a stroke, both sets of rules can apply together, so it's worth mentioning the stroke history specifically when discussing driving with the GP, not just the dementia diagnosis on its own.

Having the conversation

A few things that genuinely help:

• Frame it as a safety question, not a capability judgement. "Is this still safe" lands very differently to "you can't do this anymore."
• Let the GP be part of the conversation where possible. Hearing it from a doctor, as a medical fact rather than a family opinion, often reduces conflict.
• Acknowledge the loss honestly. Giving up driving is a real bereavement for a lot of people, not just an inconvenience. It deserves to be treated as one.
• Have the alternative ready before the conversation, not after. Knowing there's a Blue Badge, a lift arranged, or a pharmacy delivery already sorted makes "yes, but" easier to hear than "you'll have to figure something out."

If they won't stop

Families can't physically stop someone from driving, and that's a genuinely difficult position to be in. A few realistic options: if the diagnosis genuinely hasn't been reported to the DVLA, a family member can contact the DVLA directly. A GP can, in rare cases involving real risk to the public, disclose concerns to the DVLA without the person's consent, though this is a last resort and best avoided if there's any other way through. Practically, some families find that removing day-to-day access to the car (moving keys, addressing it with the insurer directly) is the only option that actually works, even though it's a hard step to take.

A word from The Care Compass

This is one of those topics where the legal facts are actually the easier part. The harder part is everything that comes with it, the identity, the independence, the fear of what's next. If you're in the middle of this conversation right now, you're not doing it wrong just because it's hard.

This article is for general guidance only and does not constitute legal or medical advice. Rules can change; always confirm current requirements on GOV.UK or with the DVLA directly.

You don’t have to navigate it alone.