Rent Arrears and Possession: Why the Bar Just Went Up to Three Months

For any landlord whose worry is a tenant who stops paying, the Renters' Rights Act has quietly made the situation harder — and a lot of landlords haven't clocked it. With Section 21 gone, the only way to regain possession is the Section 8 route, and the mandatory rent-arrears ground that landlords have long relied on now bites later: more arrears must build up, and you must give more notice, before you can use it. Combined with possession claims that already run many months, that means a longer, costlier gap before you get your property back. The practical response isn't panic — it's chasing arrears early and keeping a spotless payment record. Here's what changed and what to do. This is general guidance, not legal advice — confirm the current thresholds and notice periods on GOV.UK.

What changed with the arrears ground

Possession for rent arrears is usually pursued under the mandatory arrears ground — historically the attraction being that if you prove the required level of arrears, the court must order possession. The Renters' Rights Act raised the bar on that ground in two ways that matter:

• More arrears required. For a monthly tenancy, the threshold moved from broadly two months' arrears to around three months' before the mandatory ground is available.
• A longer notice period. The notice you must give before applying to court on this ground increased — from around two weeks to roughly four weeks.
• Universal Credit delays are discounted. Where arrears exist only because a tenant's Universal Credit payment hasn't come through yet, that portion is generally disregarded when counting up to the threshold.

The exact figures depend on how the rent is paid (weekly, monthly, quarterly) and are set out in law, so treat the above as the shape of the change and confirm the precise thresholds and notice on GOV.UK before you serve anything.

Why early action matters more than ever

When the mandatory ground kicks in later, the weeks before it become decisive. A tenant who misses one payment isn't yet at the threshold — but that's exactly the moment to act, not to wait and hope. Chase early, communicate, and keep a record, because doing so:

• Often resolves it — a prompt, friendly reminder catches genuine oversights before they snowball.
• Builds the evidence you'll need if it does proceed — dated proof you raised it and gave the tenant a chance to put it right.
• Keeps other routes open — even where the mandatory ground isn't met, a clear record supports a discretionary case where the court weighs your conduct and the tenant's.
• Surfaces the Universal Credit angle early, so a payment-timing issue can be sorted rather than mistaken for non-payment.

The record that wins a Section 8 arrears case

Because possession is now Section 8 and evidence-led, an arrears case lives or dies on documentation. What you want to be able to show is a clean, dated story: a rent account setting out exactly what was due and what was paid; the reminders you sent and when; the tenant's responses; and the correctly served notice on the right ground. "They're behind" is an assertion; a dated rent ledger and a trail of reminders is proof. And as with every possession claim, your underlying compliance paperwork needs to be watertight too, or a defect elsewhere can derail an otherwise sound arrears claim — in particular, a defective deposit can now block a Section 8 claim even where the arrears are clear-cut.

What landlords should do now

1. Chase the first missed payment immediately — a same-week reminder, not a month's silence.
2. Keep a dated rent record per tenancy — what was due, what was paid, and when.
3. Log every reminder and reply, so your communication trail is evidence, not memory.
4. Check the Universal Credit position where relevant, so a benefit-timing gap isn't treated as arrears.
5. Get the ground and notice right — confirm the current threshold and notice period on GOV.UK, and take advice before serving on a contested case.

The reforms haven't removed your ability to deal with a non-paying tenant — they've made early, evidenced action the difference between a manageable problem and an expensive one. It's the same lesson running through the rest of the rules now in force: the landlord with the records wins.

General guidance for UK landlords, not legal advice. Possession grounds, arrears thresholds, notice periods and how they apply are set by government and depend on the tenancy and how rent is paid, and can change — always verify the current requirements at GOV.UK and take professional advice before serving notice or starting a possession claim.