Housemate's Partner Always There? What Are Your Rights
Your housemate's partner is there most nights. They shower, they cook, they use the heating and the wifi, and they've somehow acquired a shelf in the fridge. They don't pay anything, because they don't live there.
Except they sort of do. And nobody wants to be the person who raises it.
The short version
- Most agreements have a guest clause, often around 14 nights, after which someone is treated as living there.
- An extra occupant can breach the tenancy and, in a licensed HMO, breach the licence too.
- It can cost you money directly if anyone in the house claims a single person council tax discount.
- Raise it as a fairness question, not a relationship one. That's the version people can actually respond to.
Where's the line between a guest and an occupant?
Most tenancy agreements contain a clause limiting how long a guest can stay, commonly 14 nights in any period, sometimes fewer, sometimes requiring the landlord's consent for anything longer.
Dig out your agreement and look. It's usually under "occupation", "guests" or "parting with possession". If there's a clause and it's being exceeded, that isn't a matter of opinion, it's a breach of the tenancy that everyone on the agreement is exposed to.
There's no fixed legal definition of when a visitor becomes an occupant. In practice it's about whether they're living there: post arriving, belongings in the property, keys, no other address they're actually using.
Why it can cost you money
Three ways, and the first surprises people.
Council tax. If anyone in the house claims the 25% single person discount, and another adult is effectively living there, that discount is at risk. Councils can and do reclaim it, sometimes going back years, and they can add a penalty. On a Band D bill that's around £598 a year at stake.
If all occupants are full-time students the property is exempt, but a non-student partner moving in can end that exemption entirely, which is a much bigger number.
Bills. An extra adult showering daily, using heating and cooking is a real cost. In a house of four, one uncounted person is roughly a 25% increase in usage split between the people who are paying.
HMO licensing. If the property is a licensed HMO, the licence specifies a maximum number of occupants. Exceeding it breaches the licence, which is the landlord's problem legally, but becomes everyone's problem when it surfaces. Shared house rights covers licensing.
Does the partner have any rights?
Generally no, and this cuts both ways.
Someone who isn't named on the tenancy is not a tenant. They have no right to be there beyond the tenant's permission, and no right to stay if that tenant leaves. They're a guest in law, however long they've been sleeping there.
Which means, practically, that this is a conversation between the people on the agreement rather than a negotiation with the partner.
Raising it without a row
Almost everyone gets this wrong by waiting three months and then raising it while furious.
Go early. At six weeks it's an observation. At six months it's an accusation with a backlog of resentment attached.
Make it about the arrangement, not the person. "Can we work out how bills should split now Sam's here most of the time?" lands very differently from "your girlfriend basically lives here."
Have a proposal. Vague dissatisfaction is hard to act on. A specific suggestion is easy to agree or counter.
Talk to the housemate, not the partner. They're the one on the agreement, and involving the guest makes it personal immediately.
Check whether others feel the same first, but don't arrive as a delegation. That reads as an ambush.
What a fair arrangement looks like
There's no single right answer, but these are the ones that hold up:
- A contribution to bills. Commonly a half-share of one person's portion, or a flat monthly amount. It doesn't need to be exact to feel fair.
- A night limit everyone sticks to, if paying isn't wanted. Four or five nights a week is not "staying over".
- Formally moving in, with the landlord's agreement, a share of the rent, and their name added or a new agreement. Cleanest, and the right answer if it's a long-term thing.
- Nothing at all, if genuinely nobody minds. Worth checking rather than assuming, because the person who minds is often the one who says least.
Whatever you agree, write it in the house's shared note. Not as a contract, but so it doesn't drift back.
If the answer is a flat no
Sometimes people are defensive because they know it's unreasonable.
Escalate calmly:
- Put it in writing, briefly, to the household. Keeps it factual and stops it being remembered differently.
- Point at the clause if the agreement has one, without making it a threat. "We're technically in breach" is a fact everyone shares.
- House meeting if more than one person is affected.
- Only involve the landlord as a last resort, and understand what you're starting. A breach of the guest clause or an HMO licence is a problem for everyone named on the tenancy, not just for the person hosting.
That last point deserves weight. Reporting it may end the situation and may also create a bigger one, particularly on a joint tenancy where you're all liable together.
If it can't be fixed
Since May 2026 every tenancy is periodic, so you can give two months' notice at any point.
The catch on a joint tenancy: your notice ends the tenancy for everyone, not just you. On individual tenancies it affects only you. Know which you're on before serving anything, and talk to the household first. Moving now fixed terms have gone.
The other side of it
Worth a moment of fairness. If it's you whose partner is always there, the things that annoy people are rarely the person. They're the unequal bills, never being consulted, and the shared spaces quietly becoming less shared.
Offering a contribution before anyone asks resolves nearly all of it, and costs less than the atmosphere does.
The honest summary
Check the guest clause, check whether anyone's council tax discount is at risk, and raise it early as a question about bills rather than about a relationship.
A contribution or a night limit fixes most of these. Involving the landlord fixes fewer than people expect and starts something that lands on everyone.
More on the rest of shared living: living with housemates, the cleaning rota, the bathroom, and food going missing.
And when the tenancy ends, review the property and landlord. Whether a house works as a share is something only the people who lived there can tell the next lot.
This guide covers England and reflects the position at August 2026. Wales, Scotland and Northern Ireland differ. General information rather than legal advice, and your own tenancy agreement governs guests and occupancy. Sources: GOV.UK, council tax discounts, Citizens Advice, sharing accommodation.