Renters' Rights Act: Using AI for Tenant FAQs and Section 13 Letters

A letting agent can use AI to answer routine tenant questions and draft Section 13 rent-increase letters under the Renters' Rights Act, provided the assistant works only from current GOV.UK text, a person checks every dated notice, and the prescribed Form 4A is used for the notice itself. The AI drafts the wording; it never decides validity.

The new tenancy system started on 1 May 2026, and it changed the rent-increase process for almost every private tenancy within its scope. Most existing tenancies became rolling (periodic) tenancies on that date, Section 21 "no fault" evictions ended, and rent can now be increased only through the Section 13 process. Material written before that date, including much of what an assistant learned in training, describes the old system.

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Check scope before anything else. GOV.UK's rent-increase guidance says it applies to assured periodic tenancies in one of the four nations only, and it links to different rules for the other three and for regulated tenancies, so confirm that each property sits within the Act before using this process. GOV.UK explains the law but not the drafting; that gap is what an agency's own checklist has to fill. This is general information, not legal advice. Where a point matters to a particular tenancy, check the current guidance and ask your lawyer or professional body.

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What changed on 1 May 2026, in the points that touch your letters

Before drafting anything, put these points in front of whoever writes or approves letters. They are taken from the GOV.UK guidance read in November 2026; check the pages again, as guidance has been updated since the Act passed.

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• Section 13 is the only route. All rent increases for these tenancies go through the Section 13 process. The GOV.UK guide says increases by any other means, such as rent review clauses, will not be permitted.
• Form 4A. GOV.UK's rent-increase guidance names Form 4A, "Landlord's notice proposing a new rent", and says to give it at least two months before the increase is to start, even where the tenant has already agreed.
• Once a year. GOV.UK says rent can be increased only once a year, and not in the first year of the tenancy. Its example: an increase starting on 1 February 2026 means the next cannot take effect before 1 February 2027.
• Delivery. In person or by post. Email only if the tenancy agreement allows it.
• Challenge. A tenant who thinks the proposed rent is above the open-market rent can ask the First-tier Tribunal to decide. GOV.UK's guide to the Act says the new rent applies from the date of the tribunal's determination and that the tribunal can defer an increase by up to a further two months in cases of undue hardship.
• Earlier notices. A Form 4 served before 1 May 2026 keeps its stated notice period and increase, even if the new rent starts after 1 May. An increase agreed under a rent review clause before that date but taking effect afterwards will not apply.
• Information sheet. For tenancies that began before 1 May 2026, landlords were to provide the Renters' Rights Act Information Sheet by 31 May 2026 (or written terms where there was no written agreement).
• Adverts and offers. Written adverts must state a price; asking for, encouraging or accepting offers above it is banned. Rent in advance can be taken only between signing and the start of the tenancy, and is usually capped at one month's rent (28 days' rent where it is not paid monthly).

Those points are the "source of truth" for your assistant. They are also a reminder that letting agents often do the practical work on behalf of landlords, so a process that is only half-compliant gets repeated across a whole portfolio.

Twelve checks for any AI-drafted Section 13 pack

This is the checklist for any Section 13 letter or notice pack an assistant touches. Use it as a one-page form with a signature line for the approver.

1. Tenancy type confirmed. The tenancy is within the new system, and the record shows its start date and the date of any previous rent increase.
2. Source checked. The GOV.UK rent-increases page and Form 4A were opened today; note the date checked.
3. Minimum two months' notice. The start date is a calendar date at least two months after the notice is given, with any post-delivery allowance added by the approver, not the assistant.
4. Frequency. At least a year since the last increase took effect, and not in the tenancy's first year.
5. Form 4A used. The notice is the prescribed form, completed with the exact rent, rent period and start date. The AI-drafted covering letter does not replace it.
6. Figures match. Current rent, proposed rent, difference and percentage match the tenancy record.
7. Delivery allowed. Hand, post, or email only where the agreement permits it; proof of delivery will be kept.
8. No unsupported claims. The letter gives a factual reason or none; it does not say the increase is "required by law", "capped by law" or "the market rate" unless you hold evidence.
9. Tenant rights described accurately. The wording about challenging the rent matches GOV.UK, with no promise about the outcome.
10. Tone. Neutral and plain; no threats about possession.
11. Human approval. A named person checked all of the above and signed.
12. Record kept. Letter, form, posting or delivery proof and approval saved to the tenancy file.

Points 3 and 4 are the ones where an assistant is most likely to slip. Date arithmetic with "two months" depends on month lengths, and the previous increase date has to come from your records. Do those two calculations in a spreadsheet or by hand and give the assistant the results.

A prompt that pins the assistant to GOV.UK text

Paste or upload the current GOV.UK rent-increase page as the source. Use a business plan or an account with model training off, and keep tenant details to what the letter needs.

You are drafting a covering letter to accompany a Section 13 notice (Form 4A) for a landlord client.
SOURCE (the only rules you may rely on): [paste GOV.UK rent-increases text, with the date you copied it].
FACTS: tenant first name [first name]; property [address]; current rent [amount] per [month];
proposed rent [amount] per [month]; start date [calendar date, already calculated by the agent];
date the notice will be given [date]; delivery method [post/hand]; reason for the change [one factual sentence or "none"].
TASK: write a covering letter under 200 words in plain English. Mention that the formal notice is
enclosed on Form 4A, state the new rent and start date, say the tenant can ask the First-tier Tribunal
to decide the rent if they think it is above the market rate, and give our contact details.
RULES: do not state any rule that is not in the SOURCE. Do not calculate dates. If a fact is missing
or conflicts with the SOURCE, list the problem instead of writing the letter.

"Do not calculate dates" is a deliberate choice. The agent supplies the date, and the assistant uses it. That keeps the weakest part of the process away from the tool.

Worked example: 120 tenancies and one six-month review batch

An illustration with invented numbers. A letting agency manages 120 tenancies for private landlords. Before 1 May 2026 it ran increases through Form 4 or a rent review clause in about a third of tenancies. After the change, the manager wants one process, one template and a record that stands up if a tenant challenges a notice.

She builds a spreadsheet with one row per tenancy: tenancy start, date of last increase, current rent, landlord's proposed rent, planned posting date, delivery method and whether the agreement allows email. Two formula columns follow. The first adds two months to the planned posting date (plus the agency's own allowance for post) and returns the earliest start date. The second returns "OK" or "Too soon" by checking a year since the last increase. In this example, 41 tenancies were due a review within six months; 34 passed the checks, 5 failed on timing (the last increase was under a year ago) and 2 were first-year tenancies.

For the 34, a coordinator pastes each row into the prompt above and gets a covering letter in about a minute. The coordinator completes Form 4A from the same row, and the manager checks each pack against the checklist in roughly five minutes. The old process took an estimated 25 minutes a tenancy, mostly retyping and recalculating dates, so the 34 packs cost about 85 minutes of drafting (letter and form together, about 2.5 minutes a pack) and 170 minutes of checks: roughly four and a quarter hours instead of about 14. Those figures are illustrative; your first batch will take longer while the formulas settle.

The value is not only speed. The two failures that mattered were found by the date columns before any letter was written, which is the right place to find them.

Building a tenant FAQ the assistant can answer from

Tenants will ask about the changes, and an assistant that answers from memory is risky. The safe design is a short approved FAQ built from GOV.UK, which the assistant is told to use and nothing else. Start with the questions you actually receive.

Notice the third column. Telling the assistant exactly when to stop is as important as telling it what to say. A tenant who asks "is this notice valid?" is asking for a legal assessment, not a FAQ answer, and the right reply is a polite handover to a named person with a response time.

A sample instruction for the FAQ assistant (illustrative):

Answer tenant questions using ONLY the approved FAQ below, dated [date]. If the question is not clearly
covered, or concerns a specific notice, dispute, eviction, repairs complaint or deposit, reply: "Thanks,
I have passed this to [name], who will reply by [time]. This is general information, not legal advice."
Never guess a date, amount or deadline. Keep replies under 120 words.
APPROVED FAQ: [paste]

A sample exchange (illustrative). Tenant: "My landlord says my rent goes up in six weeks. Is that allowed?" Assistant: "Under the new tenancy system, a rent increase needs a notice on the prescribed form giving at least two months before the new rent starts, so six weeks would not normally be enough. I've passed your question to [name], who will check the notice and reply by [time]. This is general information, not legal advice." The answer uses the approved text, avoids declaring the notice invalid and hands the case to a person. What you would fix: if the agency itself gave the notice, a reply like this exposes an error. Make sure the checklist catches it before the tenant does.

For wider tenant-message handling, AI for letting agents: handle tenant queries without extra staff covers routing, and rent increase letters with AI gives the general rule-sheet method for any set of notice rules.

Before and after: an AI draft with the old rules baked in

Here is the failure the source rule prevents. An assistant without the new guidance, asked for a rent-increase letter, might write something like this (illustrative):

Dear [first name],
As your fixed term ends on 31 August, we are proposing a new tenancy at [amount]. If you do not sign by 15 August we will serve notice under Section 21.

Every important part is out of date: fixed terms no longer exist for these tenancies, Section 21 is abolished, and a rent increase goes through Section 13, not a renewal. A tenant who received that letter could complain to the council, and the agency would have no good explanation. With the source-pinned prompt, the same task produces a short covering letter that mentions Form 4A, the new rent, the start date and the tribunal route. This is why the prompt tells the assistant to list problems instead of writing.

Checking a pack the way the approver would

An illustration of the approval step catching problems. A coordinator hands over a pack for a tenancy that began in March 2025. The approver works down the checklist with the tenancy record open.

• Dates. The covering letter says the new rent starts on 1 January 2027. The pack is to be posted on 5 November 2026, so two months takes the earliest start to 5 January 2027 before any post allowance. The start date is too early. The approver moves it to 1 February 2027, the next rent day, and corrects Form 4A.
• Frequency. The record shows the last increase took effect on 1 March 2026, so a year has not passed. The earliest compliant start date is 1 March 2027, not 1 February. The notice cannot go out in this form, and the landlord is told why.
• Reason. The draft says the increase "reflects current market rents". The agency holds no comparison figures, so the approver deletes the claim and writes "a review of the rent" instead.
• Delivery. The coordinator planned to email the pack. The agreement is silent on email, so the approver switches to post with proof of posting.

Four problems in one pack, none visible on a quick read of the letter. That is the typical outcome when a fluent draft meets a real tenancy record, and the reason the checklist is a form with a signature, not a good intention. Notice also that the AI was not the cause of every error; the coordinator's own plan had two. The checklist protects against both.

What goes in a notice pack

Standardise the pack so nothing is missed and every file looks the same to a tenant, a landlord or a tribunal.

1. Form 4A completed and signed as the form requires.
2. The covering letter, drafted with the assistant and approved.
3. A one-page tenant FAQ from your approved text, dated.
4. Proof of delivery: a posting receipt, a photo of hand delivery with date, or the email log where the agreement allows email.
5. A file note: tenancy start date, previous increase date, calculation of the earliest start, name of the approver and date of approval.
6. A diary entry for the earliest date the next increase could take effect.

The diary entry is a small thing that prevents a recurring mistake: a landlord asking in ten months for another rise that is not yet permitted. Build it into the spreadsheet as the "next possible" column and the question answers itself.

Agreed rises, old Form 4 notices and other awkward cases

A rent already agreed in conversation

GOV.UK says to use Form 4A even where the tenant has agreed the increase. The covering letter can say "as we discussed on [date]" and then give the formal details. Do not skip the form because the tenant said yes.

A notice served before 1 May 2026

The guidance says a Form 4 served earlier keeps its notice period and amount. If the new rent starts after 1 May, it still applies, but any new increase afterwards must use Form 4A and respect the one-year gap. Flag these tenancies in the sheet so nobody sends a second notice too early.

A tenant who says they never got the information sheet

Do not argue by email. Check the delivery record, resend with proof of delivery, and log it. An assistant can draft the resend letter, but the fact of whether it was sent belongs to your file.

A landlord who wants a large increase

Your job is to explain that the tenant can ask a tribunal to decide the market rent. Ask the assistant to draft a neutral note for the landlord laying out the process and the risk of a challenge, from the GOV.UK source. Do not use it to promise an outcome, and keep the decision with the landlord.

A new tenancy, new advert

The bidding ban applies to adverts and negotiation. If an assistant helps write listings or enquiry replies, instruct it to state one price and never invite offers. AI for rental properties: screening enquiries and viewings covers that workflow, and if the tenancy agreement itself needs rewriting, see whether AI can draft a tenancy agreement after the Act.

Keeping the process correct as guidance changes

Guidance is still being updated, so treat your approved text as a dated document. A simple routine: a named person opens the GOV.UK pages on the first working day of each month, compares them with your approved FAQ and rent-letter prompt, and records "checked [date], changes: none" or the changes made. If a page changes, pause AI-drafted tenant replies until the approved text is updated. If you already keep a dated compliance tracker for safety certificates, add the monthly guidance check as a row there; tracking landlord compliance dates with AI shows a layout that suits it.

Keep records of who approved what. If a tenant challenges a notice, you want to show the checklist, the form, the delivery proof and the person who signed off. A letter drafted with AI and reviewed by a person is no weaker than one typed by hand; a letter nobody reviewed is weak whoever drafted it.

If you want help setting up the spreadsheet, the prompts and the approval step for your own agency, that is what my AI implementation consultation covers; get in touch and we can map it together.

Questions agents ask about AI and the new tenancy system

Can AI serve a Section 13 notice on its own?

No. AI can draft the covering letter and fill the merge fields, but the notice itself is the prescribed form (Form 4A), and a person must check dates, amounts and delivery before it goes out. A notice that fails on a detail may be invalid, so every one needs a human sign-off.

Should an assistant answer tenants' legal questions directly?

Use it for routine, factual answers drawn from your approved text, such as what the information sheet is or how rent increases work in general. Anything about a specific dispute, possession, or a tenant's own rights goes to a person. Add a line that the reply is general information.

Which source should the AI be told to use?

Give it the current GOV.UK guidance pages as the only source, pasted in or uploaded, and tell it to say 'not in the source' when a question is not covered. Do not let it answer from memory; the system changed on 1 May 2026 and older material is wrong.

How often should the approved answers be rechecked?

At least monthly while guidance is still being updated, and whenever GOV.UK changes a page you rely on. Put the review date at the top of your approved text, and retire any answer that cannot be traced to a current page.

Further reads

• How Property Managers Use AI to Screen Tenant Applications Fairly — Fair screening, now that discrimination rules have tightened.
• AI Assistant for Landlords: WhatsApp Maintenance Requests and FAQs — Maintenance requests and FAQs over WhatsApp.
• AI Tools for Landlords: Messages, Lease Checks and Application Fraud — Lease checks and application fraud for small landlords.
• How Small Law Firms Use AI to Draft Letters and Routine Documents — Routine letters drafted fast with review by a lawyer.
• Can ChatGPT Draft a House Rental Lease? What Landlords Must Check — What to check when AI drafts a tenancy agreement.
• Tenant Referencing With AI: Document Checks and Fraud Signals — A referencing checklist for letting agents: AI consistency checks, metadata red flags, verification calls, and a rule that nothing is auto-rejected.
• Can AI Help With Right to Rent Checks? Where a Human Must Sign Off — Where AI can help with right to rent checks (first-pass checklists, record tidying, reminders) and the sign-off points a human must keep.
• AI Tools and AI Development: The Complete 2026 Guide — the AI hub, including every tutorial in the AI-for-business series.

Sources: GOV.UK, Assured periodic tenancies: a guide for landlords (rent increases, rental bidding, rent in advance and written information sections), Renters' Rights Act: an overview for landlords, Guide to the Renters' Rights Act, and Assured tenancy forms (Form 4A), all read on 4 November 2026. Check each page again before use; guidance is being updated. This is general information, not legal advice.