How Do You Set Boundaries With Someone Who Drinks?

Most people think setting a boundary means giving someone an instruction: “You need to stop drinking,” or “You cannot bring alcohol into this house.”

Then the person drinks anyway, an argument starts, and nothing changes.

That is because an instruction is an attempt to control another person's behaviour. If someone is struggling with alcohol, they are already finding it difficult to control their own drinking. A demand from you will not change that, no matter how much you love them or how reasonable your demand sounds.

A boundary is something completely different.

A boundary is not about controlling what the other person does. It is about deciding, in advance, what you will do. It is a clear line you draw around your own safety, your mental health, your home, and your self-respect.

Once you understand that distinction, everything becomes clearer.

The difference between a rule, an ultimatum, and a boundary

It helps to see how these three things differ in practice.

A rule tries to govern their choices: “You are not allowed to drink tonight.” You have no way of enforcing that unless you monitor them constantly, which turns you into an investigator rather than a partner or family member.

An ultimatum is a high-stakes threat: “If you drink again, I am leaving forever.” Unless you are truly ready to pack your bags and leave that evening, an ultimatum usually collapses, teaching the person that your warnings have no real weight.

A boundary is a calm decision about your own actions: “If you choose to drink tonight, I will sleep in the spare room,” or “I will not stay in the room if you are drinking.”

Notice who is in control here. You are not telling them what they are allowed to do. You are telling them what you will do in response. Their choice remains theirs, and your response remains yours.

Why setting boundaries feels so difficult

If boundaries sound straightforward on paper, living them is another story. Living with someone whose drinking causes problems brings an enormous amount of emotional weight.

You might recognise some of these hurdles:

Guilt: You worry that setting a limit means you are abandoning them, being cold, or failing to support them through an illness.

Fear: You worry that if you pull back, their drinking will get worse, or something catastrophic will happen while you are not watching.

Hope: When they have a few sober days and everything feels warm again, you tell yourself that perhaps things are improving and you do not need to make a fuss.

Blame: When you try to speak up, they turn it back on you, accusing you of nagging, exaggerating, or causing them stress that “drives” them to drink.

These reactions are completely normal. But here is the reality: cushioning someone from the consequences of their drinking does not protect them from addiction. In most cases, it quietly enables the drinking to continue, because you are absorbing the fallout while they carry on as before.

What healthy boundaries actually look like

Boundaries can cover conversation, space, finances, and responsibilities. What matters is that they are realistic and within your power to enforce.

Here are practical examples that many partners and families find helpful:

On conversations: “I will not have serious discussions, debate our relationship, or argue with you while you have been drinking. We can talk about this tomorrow morning when we are both sober.”

On your personal space: “If you come home intoxicated, I will spend the evening in another room or sleep in the spare bedroom.”

On social situations: “If we go to an event and you start drinking heavily, I will take a taxi home on my own rather than trying to stop you.”

On finances: “I will not lend you money, give you cash for bills that you have spent on alcohol, or pay off debts related to drinking.”

On covering up: “I will not call in sick to your employer for you, lie to family members to protect your reputation, or make excuses for missed commitments.”

On practical messes: “I will not clean up vomit, dispose of your hidden bottles, or wash clothes you soiled during a drinking episode.”

On safety and children: “You cannot drive our children or look after them unsupervised if you have had a drink.”

None of these statements attack the person. None of them try to wrench a glass out of their hand. They simply say: you can make your choices, but I will not carry the consequences for you.

How to communicate a boundary

How you say it matters just as much as what you say.

First, choose the right moment. Never attempt to set a boundary while the person is drunk, or in the heat of a shouting match. Wait for a quiet, sober moment when neither of you is rushing out of the door.

Second, use “I” statements rather than “You” statements. Compare these two approaches:

“You are a selfish disaster who ruins every weekend, and you need to get your act together.”

“I find it exhausting to be around drinking at the weekend. If you drink this Saturday, I am going to visit my sister for the afternoon.”

The first invitation starts a defensive row. The second statement simply names your reality and your planned action.

Third, keep it brief and calm. You do not need to deliver a long speech explaining all the ways they have hurt you over the past five years. State the boundary clearly, without apology, and let the conversation end.

The hardest part: what to do when they test it

Every boundary you set will be tested. This is guaranteed.

When someone is used to having you clean up after them, cover for them, or argue with them until 2am, a new boundary will feel unfamiliar and uncomfortable. They may get angry, mock you, sulk, or accuse you of no longer loving them. They may also test whether you really mean it by drinking anyway to see if you actually go to the spare room.

This is the decisive moment.

If you say you will leave the room and then stay and argue for three hours, the boundary has failed. You have confirmed their belief that your words are just noise.

If you calmly stand up, walk into the spare room, and close the door, you have taught them something entirely new: your words mean what they say.

Holding a boundary does not require shouting. In fact, the calmer you are, the more powerful the boundary becomes. Consistency is what creates change, not anger.

Boundaries are an act of care, not punishment

It is easy to feel that setting boundaries is cruel or unloving. Many people I speak with carry tremendous guilt about stepping back.

It helps to remember what a boundary really is. A boundary is not a punishment designed to hurt the other person or teach them a lesson. A boundary is a protective fence that allows you to remain a sane, healthy human being.

In fact, allowing someone to feel the natural consequences of their drinking is often the kindest thing you can do. As long as you shield them from hangovers, missed work, broken promises, and uncomfortable silences, they have little reason to acknowledge that their drinking has become unmanageable.

Reality is often the only thing powerful enough to motivate someone to seek help. By stepping out of the way, you allow reality to do its work.

When safety comes first

There are situations where everyday boundaries are not enough, because physical safety is at stake.

If the person becomes physically violent, verbally abusive, threatening, or destroys property, your priority is immediate safety. You do not need to negotiate or explain yourself. Leave the house, take any children or vulnerable dependents with you, and call 999 if anyone is in danger.

Additionally, if someone has been drinking heavily every single day and decides to stop completely, they must not stop abruptly without medical guidance. Alcohol withdrawal in physically dependent individuals can cause severe tremors, seizures, and life-threatening complications. Encourage them to contact their GP or a local community alcohol service for a safe, medically supervised detox.

Support for you while this is happening

You do not need to navigate this alone, and you do not have to wait until the person stops drinking before you get support for yourself.

NICE guidelines explicitly state that family members and carers affected by someone else's alcohol use should be offered support in their own right.

Al-Anon is a free, confidential worldwide fellowship specifically for friends and families of people with drinking problems. It offers a safe space where you can speak with others who understand the exhaustion and confusion of this situation.

Speaking to a private therapist who specialises in addiction can also be invaluable. Therapy gives you a private, non-judgmental space to unpack your own coping patterns, untangle guilt, prepare for difficult conversations, and decide what you are willing and not willing to live with.

Setting boundaries is difficult work, especially if you have spent months or years keeping the peace. But you deserve a life that is not entirely dictated by someone else's drinking.