Section 8 vs Section 21: What Landlords Must Know in 2026

What Section 21 was: a brief history

Section 21 of the Housing Act 1988 created the 'no-fault' possession mechanism. It allowed landlords to serve a written notice on an AST tenant without citing any reason, provided they met a set of compliance conditions. Once the notice expired, if the tenant did not leave, the landlord could apply to court and the court was required to grant possession — no grounds needed, no reasonableness test applied.

• Introduced by the Housing Act 1988 alongside the Assured Shorthold Tenancy as the landlord's safety valve
• Required two months' written notice in most cases (six months for periodic tenancies in the first six months)
• Required the landlord to have protected the deposit, served the prescribed information, provided an EPC and gas safety certificate, and given the tenant the 'How to Rent' guide
• Widely used for legitimate reasons: landlord wanted to sell, redevelop, move back in, or simply end a tenancy that had run its course
• Subject to retaliatory eviction rules from 2015, which blocked use of Section 21 within six months of a valid repair complaint
• Abolished for all tenancies in England on 1 May 2026 by the Renters' Rights Act 2025

What changed on 1 May 2026

The Renters' Rights Act 2025 commenced Phase 1 on 1 May 2026. The following changes happened automatically on that date:

• Section 21 of the Housing Act 1988 was repealed — it no longer exists in English law
• Every Assured Shorthold Tenancy (AST) in force on 1 May 2026 automatically converted to a Periodic Assured Tenancy (PAT). Fixed-term clauses fell away
• New lettings cannot be on a fixed-term AST — all new residential tenancies in England must be Periodic Assured Tenancies from day one
• All possession claims must rely on a specified statutory ground under Section 8 and Schedule 2 of the Housing Act 1988 (as amended by the Renters' Rights Act 2025)
• The Renters' Rights Act 2025 also expanded the list of Section 8 grounds, adding new grounds including 1A (landlord sale), 1B, 2ZA, 2ZB, 4A, 5C, 5H, 6A, 8A and 14ZA

Section 8 explained: the only possession route now

Section 8 of the Housing Act 1988 allows a landlord to serve a formal notice of intention to seek possession, citing one or more statutory grounds. The grounds are set out in Schedule 2 of the Act. If the tenant does not leave, the landlord must apply to the county court for a possession order. Section 8 was always available before 1 May 2026 but was rarely used because Section 21 was easier. Now it is mandatory.

• Mandatory grounds: The court must grant possession if the ground is proved on the balance of probabilities. The judge has no discretion.
• Discretionary grounds: The court may refuse possession even where the ground is technically made out, if it considers it unreasonable to grant the order.
• Notice period: Varies by ground, from 'no minimum' (Ground 14 anti-social behaviour) to four months (Ground 1A landlord sale, Ground 1 moving in, Ground 8 serious arrears).
• The notice itself: From 1 May 2026, landlords must use the updated Form 3A for Section 8 notices. The old Form 3 (used under the AST regime) is no longer valid for new notices.
• Court proceedings: Even on a mandatory ground, the landlord must obtain a court order. You cannot simply wait for the notice to expire and then change the locks.
• Compliance still matters: Deposit protection, valid EPC, gas safety certificate, EICR, and the correct start-of-tenancy documents must all be in order, or the Section 8 claim may be challenged.

Key differences: Section 8 vs Section 21 side by side

Landlords who have relied on Section 21 for years need to understand exactly how Section 8 differs across every dimension that matters:

• Do you need a reason? Section 21: No reason required. Section 8: Yes — you must cite and prove a specific statutory ground.
• Notice period: Section 21: 2 months in most cases. Section 8: Varies by ground — 4 weeks (arrears), 4 months (sale or moving in), no minimum (ASB), 2 months (most others).
• Court discretion: Section 21: Court had no discretion, possession was automatic if the notice was valid. Section 8: Mandatory grounds have no discretion; discretionary grounds give the court full power to refuse.
• Minimum tenancy before notice: Section 21: Broadly 6 months from the start of the tenancy. Section 8: Depends on the ground — Ground 1A and Ground 1 cannot be used until the tenancy has run for 12 months.
• Compliance gateway: Section 21: Non-compliance (deposit, EPC, gas, How to Rent) blocked the claim entirely. Section 8: The same compliance is expected and failure can be used to challenge the claim, though it does not automatically defeat it.
• Evidence required: Section 21: Proof of compliance documents. Section 8: Evidence of the ground itself (rent statement, surveyor report, proof of intention to sell, etc.) plus compliance documents.
• Re-letting restriction: Section 21: None. Section 8 Ground 1A or Ground 1: 12-month ban on re-letting or remarketing after possession is obtained.
• Appeal rights for tenants: Section 21: Limited — only document defects or procedural failures. Section 8: Full merits defence available on discretionary grounds; mandatory grounds still allow procedural challenge.
• Accelerated Possession Procedure: Section 21: Available and widely used (paper-only, no hearing). Section 8: Still available for mandatory grounds, but the court may require a hearing if evidence is disputed.
• Cost: Both routes require a court claim. Filing fees are similar. Section 8 contested claims tend to take longer if the ground is disputed.

Which Section 8 grounds replace common Section 21 use cases

Landlords who used Section 21 typically did so for one of a handful of practical reasons. Here is how each maps to the new Section 8 grounds:

• Selling the property with vacant possession → Ground 1A (mandatory). New ground introduced by the Renters' Rights Act 2025. Landlord intends to sell with vacant possession. Four months' notice required. The tenancy must have been running for at least 12 months before the notice is served. After possession, the landlord cannot re-let or market the property as a tenancy (21 years or less) for 12 months. Breach is a criminal offence.
• Moving into the property or housing a close family member → Ground 1 (mandatory). Landlord (or specified family member: spouse, civil partner, parent, grandparent, sibling, child, grandchild) intends to occupy as their only or principal home. Four months' notice required. 12-month tenancy minimum before notice is served. 12-month re-let restriction after possession. Landlord must have given notice at the start of the tenancy that Ground 1 may be used.
• Rent arrears → Ground 8 (mandatory) + Grounds 10 and 11 (discretionary). Ground 8 applies where at least 3 months' (or 13 weeks') rent is outstanding at the date of the notice and at the date of the hearing. Four weeks' notice. Ground 10 (some arrears, below the Ground 8 threshold) and Ground 11 (persistent late payment) can be served alongside Ground 8 as fallback positions.
• Anti-social behaviour → Ground 14 (discretionary) and Ground 7A (mandatory). Ground 14 covers nuisance or annoyance to neighbours. No minimum notice period — court proceedings can begin immediately after service. Ground 7A applies where the tenant has been convicted of a serious housing-related offence or is subject to an injunction. Both grounds existed before 1 May 2026.
• End of a convenient time (no specific reason) → No direct equivalent. This was the core of Section 21. There is no Section 8 ground that allows possession without cause. A landlord who simply wants the property back must wait until a ground genuinely arises.

What landlords must do now

The abolition of Section 21 changes how every English landlord should manage their tenancies going forward, even where possession is not currently needed:

• Check your compliance baseline: Deposit protected with prescribed information served within 30 days of receipt; EPC rated E or above; annual gas safety certificate; 5-yearly EICR; and (for tenancies granted before 1 May 2026) the 'How to Rent' guide at the correct edition. Non-compliance weakens any Section 8 claim.
• Serve the Renters' Rights Act Information Sheet if not already done: All tenants with a tenancy in force on 1 May 2026 must have received the new statutory RRA Information Sheet. If you have not served it, do so immediately — late service is a breach of the Act.
• Use a Periodic Assured Tenancy agreement for any new lettings: Fixed-term ASTs no longer exist for new lettings from 1 May 2026. Any new tenant must be on a Periodic Assured Tenancy from day one.
• Get the updated Section 8 Form 3A notice: If you need possession, you must use Form 3A (updated for the Renters' Rights Act 2025), not the old Form 3 (which related to ASTs). Using the wrong form means the notice is invalid.
• Know your grounds before you need them: If you might sell within 18 months, understand Ground 1A and its timing constraints now. If rent arrears are a risk, track payment history and understand the Ground 8 threshold.
• Document everything proactively: Rent statements, repair records, correspondence, inspection reports. This documentation is the evidence base for any future Section 8 claim on an arrears, disrepair or ASB ground.

Frequently asked questions