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Section 21 abolition: what landlords need to know

On 1 May 2026 the Renters’ Rights Act 2025 abolished Section 21 — the “no-fault” eviction that let landlords end an assured shorthold tenancy without giving a reason. Possession now runs entirely through the expanded Section 8 grounds, which means you need a recognised reason to take a property back. Here is what changed, and why it reshapes how you plan, hold and exit a buy-to-let.

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By the Vortex Finance broker desk · Reviewed for accuracy · 6 min read

What was Section 21?

Section 21 of the Housing Act 1988 was the “no-fault” route to possession. Provided the paperwork was in order, a landlord could give a tenant on an assured shorthold tenancy two months’ notice and recover the property without giving a reason and without proving any fault. For decades it was the backbone of how landlords ended tenancies — whether to sell, to move back in, to re-let, or simply to regain control of a problem let.

That route is now closed. As part of the Renters’ Rights Act 2025, Section 21 was abolished on 1 May 2026 for new and existing tenancies alike, and assured shorthold tenancies converted to periodic tenancies with no fixed term. A landlord can no longer ask a tenant to leave simply because the fixed term has ended.

What replaced it: the expanded Section 8 grounds

Possession now relies on Section 8, where the landlord must cite — and where required, evidence — a specific legal ground. The Act expanded and reworked these grounds so that the genuine reasons landlords need are still available, just with a reason attached and, in some cases, a longer notice period.

The grounds landlords rely on most

  • Selling the property: a ground that lets you recover possession when you intend to sell, subject to the notice period and a minimum period at the start of the tenancy before it can be used.
  • Landlord or close family moving in: where you or a family member genuinely intend to occupy the property as a home.
  • Serious rent arrears: a mandatory ground where the tenant is significantly in arrears at both notice and hearing.
  • Anti-social behaviour: where the tenant’s conduct justifies possession, which can be pursued on a shorter timescale.

The practical shift is that an exit now needs planning and a valid reason rather than a blanket two-month notice. Some grounds carry a minimum tenancy period before they can be used and longer notice than the old Section 21, so the timeline from decision to vacant possession is generally longer and less certain than it was.

Why this matters before you buy or refinance

Section 21 used to be the quiet assumption behind every buy-to-let business plan: if the numbers stopped working, you served notice and got the property back. With that lever gone, the holding period and the exit need to be planned up front. If your strategy depends on regaining vacant possession to sell or refurbish at a set point, you now have to map that onto the available Section 8 grounds and their notice periods — and build the extra time into your cash-flow and finance.

That feeds straight into how you fund a property. A purchase you might once have flipped to vacant possession on short notice may now need a finance structure that tolerates a longer, tenanted hold — or a clear, ground-based exit before you commit. Getting the borrowing to match the new possession reality is exactly the conversation to have before you offer, not after.

This is general information, not legal or tax advice — confirm the position with a solicitor or accountant. The Section 8 grounds, notice periods and procedure under the Renters’ Rights Act 2025 are detailed and change over time, and only a qualified adviser can confirm how the rules apply to your specific tenancy.

Financing around the new rules

Every change to how you can hold and exit a tenancy is, in the end, a financing question. If you are buying or expanding in this new landscape, a buy-to-let mortgage structured around a realistic, tenanted holding period keeps the deal robust even when vacant possession takes longer to arrange. As a whole-of-market broker we match the property and your strategy to the lenders who price that profile best — you settle the possession process with your solicitor, we line up the borrowing around it.

It also pays to read Section 21 abolition alongside the rest of the reform. See the full picture in our guide to the Renters’ Rights Act 2025, then come to us for the finance.

Buy-to-let mortgages The Renters’ Rights Act

Planning around the new rules? Let’s fund it properly.

Section 21 is gone, so the hold and the exit need to be built into the finance. We’re a whole-of-market broker covering 100+ lenders, with indicative terms within 24 hours — and asking won’t affect your credit score.

Buy-to-let mortgages Read the Renters’ Rights Act guide
Vortex Finance is a whole-of-market broker, not a lender, for business-purpose property finance. The finance we arrange is for business or investment purposes and is not regulated by the Financial Conduct Authority. All rates and figures shown are indicative and subject to lender approval, valuation and your circumstances.