Your roommate sits you down with that look — the one that means this isn't about whose turn it is to buy washing-up liquid. "I need to move out in six weeks," they say. And just like that, your carefully arranged living situation has a gap punched through the middle of it.
This happens more than landlords like to admit. Jobs change, relationships evolve, plans shift. The person who signed your lease in October might have a very good reason to need out by March. What matters now isn't why — it's what you do next.
Read the lease before you do anything else
Before you panic or start posting on Facebook Marketplace, open the tenancy agreement. Specifically, look for:
- Joint tenancy vs individual tenancy. On a joint tenancy, every person named on the lease is responsible for the full rent — not just their share. Your departing roommate cannot legally "opt out" by moving away. They remain liable until a new tenancy starts or the landlord releases them in writing.
- Break clauses. Some leases allow either party to end the tenancy after a set period. If yours does, and the timing fits, this is the cleanest possible exit route.
- Assignment clauses. These allow one tenant to transfer their portion of the lease to a new person, with landlord approval. Not all leases include them, but it's worth checking.
If anything is unclear, read it again — slowly. If it's still unclear, a quick call to a local tenants' advice service can save you weeks of expensive confusion.
Have the honest conversation first
Emotions aside, you need practical answers from your roommate before they start packing:
- What's their actual timeline — six weeks? Three months?
- Are they willing to help find and vet a replacement?
- Will they keep paying their share of rent and bills until a new person moves in, or until a hard handover date?
- Have they already spoken to the landlord, or are they assuming you'll handle that?
This conversation is awkward, but it's far less awkward than discovering six weeks later that you had completely different assumptions about every single one of these points.
The cleaner this conversation is now, the more likely you both leave the situation with the friendship — and the deposit — intact.
Finding a replacement tenant (the right way)
In most cases, a new tenant can step in for the departing one — but only with the landlord's written agreement. Don't post an ad and assume it'll be fine. Get confirmation first: does the landlord need to formally approve the new person? Will there be a new tenancy agreement, or an addendum to the existing one? Are there any fees involved?
Once you have the green light, run your search properly. Post somewhere with real reach — SpareRoom, local Facebook groups, word of mouth — but don't skip the vetting. A short video call followed by an in-person visit tells you far more than any message thread. Ask about work schedules, cleanliness habits, feelings about shared spaces, and whether they've lived in a shared house before.
Apps like Crew can make the transition feel less chaotic — the new housemate can be added to shared expenses, tasks, and house documents from day one, so nothing falls through the cracks during the handover period.
Sorting out the finances in the gap
There's often a gap between the day your roommate moves out and the day a new person arrives. That gap needs a clear financial plan, agreed in advance.
The fairest approach: your departing roommate continues covering their share of rent and bills until a replacement is found, or until the handover date they've committed to. Anything beyond that is open for negotiation — but make sure the agreement is written down somewhere, not just exchanged verbally. A text thread works. A note in your shared house group is even better.
Also revisit: shared subscriptions (streaming, broadband), any accounts in their name that need transferring, and standing orders that might need adjusting.
The handover checklist
On or before moving-out day, work through this together:
- All keys returned, including any spares cut during their tenancy
- Deposit contribution settled — either returned directly by the landlord, or transferred between you if you're managing it informally
- Utilities switched out of their name if they were the account holder
- Shared subscriptions updated or cancelled
- A final shared expense tally, so nobody's chasing £12 for loo roll two months later
- Photos of the room condition at the point of departure
That last one is easy to skip and genuinely worth not skipping. Landlords will ask. Memories fade. Timestamps don't.
Build a protocol before the next time
Once you're through this, it's worth agreeing a simple house protocol for the future — not a legal document, just a shared understanding of what happens if someone wants to leave: expected notice period, financial responsibilities during the gap, who contacts the landlord, how a replacement gets chosen.
Mid-lease departures are stressful precisely because everyone is making up the rules in real time. Having even a rough protocol in place means the next conversation is significantly shorter — and significantly calmer.
The best shared houses aren't the ones where nobody ever wants to leave. They're the ones that handle it gracefully when someone does.
