Drink-driving at Christmas: the morning-after risk, the penalties and the proposed lower limit
Every December, police forces run campaigns targeting drink and drug driving, and every year people are caught the morning after a night out, convinced they had slept it off.
This guide sets out the current limits, why there is no reliable way to know if you are under them, the penalties, what a conviction does to your insurance, and what the government’s 2026 proposal to lower the limit in England and Wales could mean.
Last updated 9 November 2026. Limits and penalties come from GOV.UK. The consultation details come from the Department for Transport’s Road Safety Strategy, published in January 2026.
Key takeaways
- In England, Wales and Northern Ireland the limit is 35 micrograms of alcohol per 100ml of breath (80mg per 100ml of blood). In Scotland it is 22 micrograms (50mg).
- There is no safe way to work out how much you can drink and stay under the limit. The only safe amount is none.
- Alcohol leaves your body slowly. You can still be over the limit the morning after.
- Drink-driving carries a minimum 12-month ban, an unlimited fine and up to six months in prison.
- The government consulted in 2026 on lowering the limit in England and Wales to match Scotland, with a lower limit for new drivers. No change has been made yet.
In this guide
- What is the drink-drive limit?
- Why you cannot count your way under the limit
- The morning-after risk
- The penalties for drink-driving
- What a conviction does to your insurance
- The proposal to lower the limit
- How to get home safely this Christmas
- Frequently asked questions
- Sources and further reading
What is the drink-drive limit?
| Measure | England, Wales and Northern Ireland | Scotland |
|---|---|---|
| Breath (micrograms per 100ml) | 35 | 22 |
| Blood (milligrams per 100ml) | 80 | 50 |
| Urine (milligrams per 100ml) | 107 | 67 |
The limit in England and Wales has not changed since 1967, and is now the highest in Europe.
Why you cannot count your way under the limit
How alcohol affects you depends on your weight, sex, age, metabolism, how much you have eaten, how tired or stressed you are and the strength of the drink. Pub measures and home pours vary widely. Two people drinking the same amount can have very different readings.
Even under the limit, alcohol slows your reactions and affects your judgement. That is why the advice from police and road safety charities is simple: if you are driving, do not drink at all.
The morning-after risk
Your body can only process alcohol at a fixed rate. Sleep, coffee, cold showers and a fry-up do not speed it up. After a big night, you could easily still be over the limit when you set off the next morning, and in some cases into the afternoon.
If you have been drinking heavily, plan not to drive the next morning. Get a lift, take public transport or leave later.
The penalties for drink-driving
If you are convicted of driving or attempting to drive over the limit, you face:
- a driving ban of at least 12 months (at least three years if you have a drink-driving conviction in the last 10 years)
- an unlimited fine
- up to six months in prison
Being in charge of a vehicle while over the limit, such as sitting in a parked car with the keys, can mean a fine, 10 penalty points or a ban, and up to three months in prison. Refusing to give a sample for testing carries similar penalties to drink-driving itself. Causing death by careless driving while under the influence can lead to a life sentence.
If you are banned for drink-driving, you may be offered a drink-drive rehabilitation course, which can reduce the length of your ban. Some high-risk offenders must also pass a medical before getting their licence back.
What a conviction does to your insurance
A drink-driving conviction (code DR10) stays on your licence for 11 years and must be declared to insurers for as long as they ask, often five years or more. Many mainstream insurers will refuse cover, and specialist cover can cost several times more than before.
A conviction can also affect jobs that involve driving, and travel to some countries.
The proposal to lower the limit
In January 2026, the government published its Road Safety Strategy, the first in over a decade. It included a consultation on lowering the drink-drive limit in England and Wales, including an even lower limit for novice drivers.
The consultation closed in May 2026. The proposal is to bring the general limit in England and Wales in line with Scotland’s 50mg per 100ml of blood, with a lower limit for learners and newly qualified drivers. At the time of writing, no government response has been published and the limit has not changed. We will update this guide when it does.
If the change goes ahead, a single drink could put some drivers over the limit, which makes the zero-alcohol rule even more important.
How to get home safely this Christmas
- Agree a designated driver who has no alcohol at all.
- Book a taxi in advance, as they are in high demand in December.
- Check the last trains and buses.
- Stay over if you can.
- Leave the car at home if you are heading to a party.
Frequently asked questions
How long does it take for alcohol to leave your body?
It varies from person to person, which is why there is no reliable rule. After a heavy night, assume you are not safe to drive the next morning.
Do the police do random breath tests?
In the UK, police need a reason to breathalyse you, such as committing a traffic offence, being involved in a collision or a suspicion that you have been drinking. The 2026 consultation also asked about new testing powers.
Is drug-driving treated the same way?
Yes. It is illegal to drive with certain drugs in your body above set limits, or if any drug impairs your driving, including some prescription medicines. The penalties are similar to drink-driving.