There is a whole industry of advice about problem tenants and almost none about the tenants you want to keep. That is backwards. A good tenant who stays another year is a void you did not have, a re-let you did not pay for, and a property you did not have to turn around. In pure numbers, retaining a good tenant is usually worth more than squeezing an extra few pounds of rent out of them.
And since the Renters' Rights Act, tenants can leave on two months' notice whenever they like — there is no fixed term holding anyone in, so keeping them is now about whether they want to stay, not whether they are contractually stuck. Here is how.
General guidance for landlords.
Why good tenants actually leave
Rarely the rent alone. Usually it is one of these:
Notice that almost none of these are about money you would have to spend. They are about responsiveness and basic respect.
Fix things quickly — it is the whole game
If you do one thing to retain tenants, handle repairs promptly and visibly. Acknowledge the report the same day, tell them what is happening, and get it done. It is also your legal duty under Section 11, so responsiveness protects you twice: it keeps the tenant and it keeps you out of a disrepair claim. A tenant whose problems get fixed fast will forgive a lot and stay for years.
Raise the rent like a human
You can raise the rent — see how much you can increase it, but how you do it decides whether the tenant accepts it or starts packing. Keep increases fair and roughly in line with the market, do them predictably rather than in a sudden lurch, and tell the tenant before the formal notice lands, with a reason. The same figure that triggers a challenge when it arrives cold often gets paid without a murmur when it was explained first. Weigh a modest increase on a sitting good tenant against the real cost of a void and a re-let — often the maths says leave it.
Small things that make tenants stay
How LetCompliance helps: a tenant portal for requests and documents, maintenance logged and tracked so nothing drags, rent collected cleanly, and Section 13 increases done properly and on time — the operational side of keeping a good tenant, in one place, so "responsive landlord" is the default rather than a good intention.
Sources
The Renters' Rights Act turned retention into your main financial lever
This is the structural point that changes how much the rest of this article is worth, and most retention advice written before May 2026 misses it entirely.
Under the old model, a twelve-month fixed term bought you twelve months of guaranteed occupancy. Retention was a nice-to-have; the contract did the work.
Since 1 May 2026 every tenancy is periodic and the tenant can give two months' notice at any time, ending on any date. There is no fixed term to lock anyone in. Which means every tenant you have is permanently two months from leaving, and the only thing keeping them is that they would rather stay. (What happens when a tenant wants to go early is a different question, and a much simpler one than it used to be.)
That is not a disaster. It is a reframing. The lock-in you used to buy with a contract you now have to earn with the way you run the tenancy, and the landlords who are good at it will hold tenants for years, while the ones who treat repairs as an argument will churn constantly and pay for it in voids.
What turnover actually costs
Landlords underprice this, which is why they will fight over £40 a month and lose a tenant.
Take a £1,150 a month flat where the tenant leaves and you re-let in four weeks:
Even self-managing with no agent, you are £1,500 to £1,800 down, plus your own hours. With an agent, comfortably over £2,000.
Now the other side. Holding a good tenant by increasing the rent to £40 a month below what you might have pushed for costs you £480 over a year.
The arithmetic is not close. One avoided turnover pays for three or four years of a slightly gentler rent review. And that is before you price the risk that the replacement tenant is worse than the one you had, which you cannot know in advance, and which is the real cost of churn.
Rent increases: the moment most good tenancies end
Nearly every avoidable departure traces back to a rent letter. The mechanics now make the how matter as much as the how much.
An increase runs through a Section 13 notice on Form 4A, once every 52 weeks, with at least two months' notice. The tenant can refer it to the First-tier Tribunal, and since 1 May 2026 the tribunal may determine a higher or lower open-market rent, but the tenant can never be required to pay more than you proposed, and the increase is not backdated. Challenging is now close to risk-free for the tenant, so an aggressive figure does not just annoy them — it invites a referral you may lose, months later.
What works in practice:
Increase little and often. Three years of nothing followed by a £150 jump reads as a betrayal. £25 a year reads as normal life, and it keeps you near the market without ever creating a decision point.
Show your working. Two lines is enough: here is what similar flats nearby are letting for, here is what I am proposing, which is a little under. A tenant who can see the reasoning rarely fights it.
Say what they are getting. If you replaced the boiler or fixed the damp, mention it. Not as a justification, as context.
Give the number early. Two months is the legal minimum, not a target. Telling someone in June about a September increase respects them. Telling them the day the notice period starts does not.
Know your floor. Work out the rent at which you would rather keep this tenant than re-let, and do not go above it for the sake of matching a portal listing. The portal figure is an asking price, not a rent anyone is paying.
The things that actually make people stay
Ask tenants why they stayed somewhere five years and you rarely hear about the rent.
Repairs answered the same day. Not fixed the same day — answered. A tenant who reports a leak and hears nothing for four days has already started browsing. A one-line reply saying you have seen it and the plumber is coming Thursday defuses almost everything. Response time, not repair time, is what people remember — our repairs workflow guide sets out a sequence that makes this the default rather than an effort.
Being treated as a resident, not a risk. Reasonable requests about decorating, a pet, or a piece of furniture cost you very little and buy enormous goodwill. Since the Renters' Rights Act you cannot unreasonably refuse a pet request in any event, and you have 28 days to answer one in writing, so handling it graciously the first time is simply the better version of a conversation you were going to have.
Not being surprised. Inspections announced properly, contractors who turn up when they said, notice given for anything that affects them.
Small proactive things. Servicing the boiler before winter rather than after it fails. Replacing a knackered fridge before it dies. These cost a few hundred pounds and are the difference between a landlord who is present and one who only appears to collect or complain.
Keeping the admin from damaging the relationship: repairs logged with a contractor and a completion note so nothing sits unanswered, rent collected by Direct Debit so a late payment is a system question rather than a monthly conversation, and certificate dates handled before they become an unannounced visit. Start free and let the system carry the parts that strain it.
Frequently asked questions
How do landlords keep good tenants?
Mostly by doing things that cost almost nothing: fix repairs quickly and visibly, raise the rent fairly and with warning rather than as a cold shock, be reachable, respect the home, and say yes to reasonable requests. Since the Renters’ Rights Act tenants can leave on two months’ notice at any time, so retention is about whether they want to stay — and a good tenant who stays another year saves you a void, a re-let and a turnaround.
Why do good tenants leave?
Rarely the rent alone. Usually it is repairs that dragged, a rent increase that felt like a grab, feeling like a nuisance when they contact the landlord, or insecurity about whether they can stay. Almost none of these cost money to fix — they are about responsiveness and basic respect, which is why retention is one of the cheapest wins in letting.