Material Information for Rental Adverts UK 2026 (NTSELAT Parts A, B, C)

Most landlords think the legal risk in a let starts at move-in. In 2026 it starts at the advert. Since 2023, UK property listings (sales and lettings) must disclose “material information”: the set of facts a reasonable tenant needs before deciding to view or rent. Rightmove and Zoopla now reject or hold listings that leave the required fields blank, and Trading Standards can act against misleading or incomplete adverts under consumer protection law.

This guide, for landlords and agents alike, covers exactly what the three parts require, who enforces them, and how to get an advert live and compliant the first time instead of having it bounced.

General information, not legal advice. Advertising rules are enforced by Trading Standards and the portals; if a listing is challenged, take advice before you re-publish.

Where the rule comes from

Material information disclosure sits under the Consumer Protection from Unfair Trading Regulations (now carried into the Digital Markets, Competition and Consumers Act 2024), and was turned into a concrete checklist by the National Trading Standards Estate and Letting Agency Team (NTSELAT) working with the major portals.

The principle is simple: a tenant should not have to chase you for basics that change whether the property is right for them. Omit something material, or imply something untrue, and the advert is a potential misleading action or omission, a civil and in some cases criminal matter, separate from anything that happens later in the tenancy.

Part A: the basics, required on every listing

Part A applies to every property and a listing cannot go fully live without it:

• Rent (the actual asking rent, and from 1 May 2026 a single figure, because rent bidding is banned).
• Deposit amount.
• Council tax band (and, for lettings, who pays it).

These are the fields portals enforce hardest.

Part B: the standard details a tenant expects

Part B is information that must be established for every property, whatever the listing:

• Property type and the number and type of rooms, including bedrooms.
• Utilities: how the property is heated, the electricity supply, and the water supply (mains or otherwise).
• Broadband: the type and an indication of speed available.
• Parking: what arrangement exists (allocated, permit, on-street, none).
• Building/construction basics where relevant.

Leaving these blank does not always block the listing, but it lowers quality, deters serious enquiries, and, if the gap turns out to be material to a particular tenant, still carries risk.

Part C: the things that affect some tenants

Part C is information that affects some tenants and must be disclosed where it applies:

• Flood risk and any history of flooding.
• Building safety issues (for example cladding in higher-risk buildings).
• Restrictions: listed status, conservation area, restrictive covenants.
• Rights and easements, accessibility features, and any mining or coalfield considerations.

Part C is where honesty matters most. You disclose what applies and stay silent on what does not, but you must not bury or omit a known issue that would change a tenant’s decision.

For agents: a portal rejection is a client-facing failure

For a managed property, an advert held or rejected by the portal is the most visible way to look unprofessional to a landlord client, and a misleading-advert complaint is one a redress scheme takes seriously. The expectation is that every listing leaves the branch with Parts A and B complete and Part C correctly addressed, consistently, across every negotiator. The agencies that avoid trouble are the ones where completeness is checked before publish, not after a portal bounces it back.

Getting it complete before you publish

The reason material information gets missed is that it is scattered: the council tax band is on one document, the EPC has the heating type, the deposit is in your head, flood risk is a separate check. By the time you write the advert, something is always left blank.

LetCompliance's advert builder has the NTSELAT Parts A, B and C fields built in, with a completeness check that flags what is still missing before the listing goes live: council tax band, deposit, heating, broadband, parking, building safety, flood risk. The advert publishes complete the first time, and the disclosure is recorded on the property file. From there the same shareable listing takes applications and viewings, then LetCompliance's referencing and a periodic tenancy agreement signed online, without re-keying anything.

The one-line takeaway

In 2026 the advert is a compliance surface: fill Part A (rent, deposit, council tax band) and Part B (property type and rooms, heating, water, broadband, parking) on every listing, and disclose Part C (flood, building safety, restrictions) wherever it applies. Complete it before you publish, not after the portal rejects it.

Get started with LetCompliance to build adverts with the material-information checklist baked in, or read how to advertise and fill voids fast next.

The advert now has to state a rent, and stick to it

This is new since 1 May 2026 and it belongs in any discussion of what a listing must contain.

The Renters' Rights Act requires a landlord or agent to state a proposed rent when advertising, and prohibits inviting or accepting offers above it. Rent bidding (listing low and letting applicants compete upwards) is no longer lawful.

Two practical consequences that catch people out.

Advertise the rent you actually want. There is no mechanism to correct an under-priced listing by taking a higher offer. If the figure is wrong you withdraw and relist, losing days you were trying to save.

An applicant may still offer more, and you must still refuse. Volunteered offers happen in tight markets. Accepting one is a breach whoever suggested it, so have a line ready: the advertised rent is the rent, and the tenancy will be granted at that figure.

The same set of changes makes blanket bans on applicants receiving benefits or with children unlawful, in the advert and in the decision behind it. "No DSS", "no children", "professionals only" and their softer cousins ("would suit a professional couple") are the exact phrasing enforcement looks for. You can still assess affordability, as long as it's on the individual applicant's actual income, whatever its source.

What happens when you get it wrong

Material information is not a portal house rule. It sits on consumer protection law, and the enforcement has more teeth than most landlords realise.

Trading standards enforce the unfair commercial practices regime. A misleading action or omission can lead to enforcement notices, civil penalties and, in serious cases, prosecution. The regime carried into the Digital Markets, Competition and Consumers Act 2024 also gives the CMA power to act directly, with penalties that scale to turnover for businesses.

Portals remove listings that fail the material information fields. For an agent this is worse than it sounds. An instruction that vanishes mid-campaign is a call from the landlord you have to explain, and repeated failures affect your feed status.

The tenant has a route too. A tenant who took a tenancy on the strength of a misleading advert (undisclosed shared access, a service charge, a known damp problem) has arguments both under consumer protection law and in any later dispute. And an advert that omitted something material is a poor starting point if you are the one seeking possession eighteen months later.

Beyond the rules, it is simply cheaper. Undisclosed problems surface at viewings, referencing or move-in, at which point you have wasted the applicant's time and your own. Every field you complete honestly at listing removes a conversation you would otherwise have had at the worst moment.