Section 8 mandatory vs discretionary grounds: the tenant decision tree for the first 30 minutes after the notice arrives (post-RRA, May 2026)

A Section 8 possession notice has landed. There is a ground number on it — maybe 1A, maybe 8, maybe 12. You don't know what that number means or what it changes about your defence. You need a triage tool, not a 17-article reading list.

This post is the triage tool. In the next 30 minutes you will know three things: whether the ground is mandatory or discretionary, whether the notice gives you the right amount of notice, and what your single best next move is. After that, the deeper-dive posts on each ground are still there for you to read at leisure — but the triage is what gets you through the first afternoon calmly.

Mandatory vs discretionary — the only distinction that matters in the first 30 minutes

Every Section 8 ground falls into one of two categories. The category controls what your defence looks like.

Mandatory grounds. If the landlord proves the ground, the court must order possession. Your defence routes are: (a) the landlord did not actually prove the ground (evidence rebuttal), (b) the notice was not validly served (procedural defence), or (c) you have a counterclaim that offsets the case. Reasonableness is not a defence on mandatory grounds — telling the court "but I am a good tenant of 12 years" does not, on its own, change the outcome.

Discretionary grounds. Even if the landlord proves the ground, the court may only order possession if it is reasonable to do so. Reasonableness is a real defence. Length of tenancy, your conduct, your circumstances, mitigation steps you have taken, the landlord's conduct — all of these go into the reasonableness assessment.

That single distinction tells you what your defence pack should contain. Mandatory: evidence rebuttal + procedural validity. Discretionary: reasonableness narrative + procedural validity + evidence rebuttal.

The two columns: which ground falls where (post-RRA, May 2026)

The Renters' Rights Act 2025 reshapes the Section 8 grounds. Some old grounds are tightened, some new ones are added (most notably Ground 1A), notice periods change. Here is the post-RRA picture as of 1 May 2026.

Mandatory grounds

Ground	What it covers	Notice period	Key tenant-side things to know
1	Landlord (or their family) wants to live in the property	4 months	Pre-existing prior-notice condition is removed under RRA — no longer required. 12-month relet ban applies.
1A	Landlord intends to sell (new under RRA)	4 months	Tenancy must be ≥ 12 months old. 12-month relet ban with Rent Repayment Order trigger if breached.
6	Landlord intends to demolish or substantially redevelop	4 months	RRA tightens evidence requirements; planning permission usually required.
7	Death of the tenant (where the tenancy passed by succession or will)	2 months	12-month window from death for landlord to act on the ground.
7A	Anti-social behaviour conviction or related court order	2 weeks	Rare; high evidence threshold (conviction or specific court order).
8	Serious rent arrears	4 weeks	RRA increased threshold to 13 weeks of arrears at notice and at hearing (up from 8 weeks). Bring the arrears below 13 weeks before the hearing and the mandatory limb falls — Grounds 10/11 (discretionary) may still apply.

Discretionary grounds

Ground	What it covers	Notice period	Key tenant-side things to know
9	Suitable alternative accommodation available	2 months	Landlord must show the alternative is suitable (location, condition, security of tenure, family needs). Often defendable.
10	Some rent arrears at notice and hearing	4 weeks	Lower threshold than Ground 8. Reasonableness defence is real — financial hardship, mitigation, repayment plan.
11	Persistent late rent payment	4 weeks	Pattern matters, not just one or two missed dates. Mitigation evidence (job loss, illness, agreed payment plans) is highly relevant.
12	Breach of tenancy agreement (other than rent)	4 weeks	Often used for unauthorised pets, sublets, or alterations. Note RRA's new pet-request right — refusal grounds matter.
13	Deterioration of the property by tenant or visitor	4 weeks	Ordinary wear and tear is not deterioration. Photographs + dated condition reports are key defence evidence.
14	Nuisance or annoyance to neighbours; criminal use	2 weeks	Reasonableness assessment factors heavily. Mitigation, mediation, character evidence all count.
14ZA	Conviction for an indictable offence during a riot	2 weeks	Rare; high specificity.
15	Deterioration of furniture by tenant or visitor	4 weeks	Inventory + condition photos at start of tenancy are critical evidence.
16	Tenancy granted because of employment, employment ended	2 months	Employment-tied tenancies only.
17	Tenant gave a false statement to obtain the tenancy	2 weeks	Landlord must prove materiality of the false statement.

[!info] Notice periods can change with regulations The notice periods above reflect the Renters' Rights Act 2025 framework as commenced on 1 May 2026. Government has power to vary specific notice periods by regulation, so always cross-check against the latest GOV.UK guidance and the Schedule 2 Housing Act 1988 text before relying on a specific number for a hearing.

The 30-minute decision tree

Step through these in order:

Step 1 — Find the ground number on the notice. Look at the form. There will be a section that says "Ground" or "Grounds" with a number (1, 1A, 6, 7, 7A, 8, 9, 10, 11, 12, 13, 14, 14ZA, 15, 16, or 17). Some notices cite multiple grounds — note them all.

Step 2 — Mark each ground mandatory or discretionary. Use the tables above. If even one of the cited grounds is mandatory and proved, the court must grant possession. If all cited grounds are discretionary, the court has discretion across the lot.

Step 3 — Check the notice period. Match the date the notice was served against the notice period required for each ground. If the notice gives less time than the ground requires, the notice is procedurally defective and the landlord will need to re-serve correctly. That buys you time and may also indicate the landlord is rushing — worth noting in your defence narrative.

Step 4 — Check the universal deposit-protection defence. Under the Renters' Rights Act 2025, landlords must show the tenant's deposit was protected in a government-approved scheme and that the prescribed information was provided, in order to obtain a possession order on most grounds. The exceptions are the serious anti-social grounds (7A, 14ZA, 14 in serious form). Pull out your tenancy paperwork and confirm: is your deposit protected? Was the prescribed information given? If either answer is no, that is a powerful universal defence — verify it on day one.

Step 5 — Route your next action by category.

If mandatory:

• Build an evidence-rebuttal pack against the specific ground
• Confirm procedural validity (form, notice period, signature, service method)
• Free legal advice within 7 days (Citizens Advice 0808 800 0099 or Shelter England 0808 800 4444)
• Request a hearing — relief from possession (up to 6 weeks delay) is available even on mandatory grounds where leaving in 14 days would cause serious hardship

If discretionary:

• Build a reasonableness narrative (length of tenancy, conduct, circumstances, mitigation)
• Build an evidence-rebuttal pack against the specific ground
• Confirm procedural validity
• Free legal advice within 7 days
• The reasonableness defence is real and routinely defeats discretionary claims

Step 6 — Diary the deadlines. Note the notice period end-date, the date by which you would expect a possession claim to be filed, and the date 7 days from now (when your free advice call should be locked in). If the landlord then files at court, you will have 14 days to file a defence — note that too.

A worked example

A tenant, six years into the tenancy, receives a Section 8 notice citing Grounds 1A (landlord intends to sell), 12 (breach of tenancy — alleged unauthorised cat), and 10 (some rent arrears — three weeks behind).

Step 1. Grounds: 1A, 12, 10.

Step 2. 1A is mandatory. 12 is discretionary. 10 is discretionary.

Step 3. 1A requires 4 months' notice. 12 and 10 require 4 weeks each. Notice was served 5 weeks ago. So 12 and 10 are timely; 1A is currently 3 months too short — landlord cannot rely on 1A from this notice alone.

Step 4. Tenant pulls out the tenancy file. Deposit is protected; prescribed information was given. So no universal deposit defence here.

Step 5. Routing:

• For 1A: notice period defective. Either landlord re-serves correctly (in which case the tenant has a fresh 4-month window to prepare an evidence rebuttal — was the landlord genuinely intending to sell, has the property been listed, has a sale process started?), or 1A drops away.
• For 12 (cat): discretionary. Tenant builds reasonableness pack — long tenancy, no complaints, RRA right to request a pet (was the request properly considered?), agreement to remove the pet if the court asks.
• For 10 (arrears): discretionary. Tenant brings arrears below threshold ASAP and offers a written repayment plan. Reasonableness narrative covers cause (illness, lost shift) and mitigation.

Step 6. Tenant books Citizens Advice for tomorrow morning, drafts a written response acknowledging Grounds 12 and 10 with mitigation, and prepares to wait out the procedurally defective Ground 1A.

That whole sequence — from "notice on the doormat" to "specific defence narrative drafted" — is doable in an afternoon. The first 30 minutes is the triage.

What about the universal deposit-protection defence?

This is worth its own paragraph because it is one of the most underused defences.

Under the Renters' Rights Act 2025, to obtain a possession order on most Section 8 grounds, the landlord must show:

• The tenant's deposit was protected in a government-approved scheme (DPS, MyDeposits, or TDS) within 30 days of receipt
• The prescribed information about the scheme was given to the tenant

The exceptions are the serious anti-social behaviour grounds (7A, 14ZA, and the most serious end of 14). Almost everything else — including 1, 1A, 8, 10, 11, 12 — requires deposit protection compliance.

If your deposit was not protected, or was protected late and you never received the prescribed information, the landlord cannot obtain a possession order on those grounds (with the noted exceptions) until they remedy the position. They cannot remedy it retrospectively against an existing claim. Late protection does not bar possession if it was protected before the claim was issued, but missing prescribed information often does.

In plain English: pull out your tenancy paperwork on day one. Look for the deposit certificate. Look for the prescribed information leaflet. If both are present, this defence is closed. If either is missing, this is a free, powerful, often case-ending defence — flag it immediately to your free advice contact.

What the court can do for you, even on mandatory grounds

A mandatory ground does not mean instant eviction. The court can:

• Delay the date you must leave by up to 6 weeks beyond the standard 14-day order, where a 14-day departure would cause serious hardship (Housing Act 1980 s.89)
• Make a suspended possession order in some discretionary-ground cases — possession is granted in principle but suspended on conditions (typically a repayment plan for arrears)
• Make a postponed possession order where the date for delivery of possession is left to be set later

These are real reliefs. Tenants in serious hardship — health conditions, school-aged children mid-term, no available alternative accommodation — should ask for them explicitly at the hearing.

Three things to do before the end of today

If a Section 8 notice landed today, these are the three concrete actions for the next two hours:

1. Photograph and file the notice and the envelope. Note the date you received it, how it was served (post, hand-delivery, agent), and whether it was addressed to all named tenants if there are joint tenants.
2. Pull your tenancy file. Tenancy agreement, deposit certificate, prescribed information, any rent payment records, any prior correspondence with the landlord. Put them all in one folder.
3. Book free legal advice. Citizens Advice (0808 800 0099 — England housing line), Shelter England (0808 800 4444), or your local council's housing options team. Lock in a slot within 7 days. Free, confidential, and immediately useful.

You can do all three before dinner. Whatever the ground, whatever the merits, those three actions strengthen your position.