Four filings and a declaration: what an MTD year actually looks like
Key takeaways MTD replaces one annual return with four quarterly updates and a Final Declaration. The quarterly updates are summaries, not mini tax returns....
Key takeaways
Open the features page of any property management platform and you will read close to the same 12 bullets: tenant tracking, lease management, maintenance requests, accounting, tenant portal, mobile app. That list is not wrong. It is just written for a market where nobody has to register a tenancy with the Residential Tenancies Board, evidence a rent increase against 3 comparable properties, or file 4 quarterly updates and a year-end declaration to HMRC.
The result is that buyers in Ireland and the UK score vendors on the wrong axis. Two systems can both tick “lease management” while only one of them produces a rent review notice that survives an RTB dispute. Two can both tick “maintenance” while only one records the timestamps that Awaab’s Law now measures you against. The tick is not the feature. The document the system emits is the feature.
This guide takes the 5 capabilities that matter most and rewrites each one as the statutory output it has to produce here, with the questions to put to a vendor before you sign. It is written for letting agents, property management companies, private landlords and housing bodies operating in Ireland, the UK, or both.
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Fitzwilliam Street, Dublin. Photo by Lobster1 via Wikimedia Commons, cropped, licensed under CC BY-SA 3.0.
A feature checklist is a list of screens. A regulator does not inspect screens. It asks for a record: the date a tenancy was registered, the evidence behind a rent increase, the hour a damp report was received, the figures behind a quarterly filing. Software either holds those records in a form you can export, or it does not.
Three things make Ireland and the UK different from the market most platforms were built for. First, the obligations are documentary. The RTB, HMRC and local authority inspectors all want a dated artefact, not a dashboard. Second, the rules changed recently and are still moving: periodic tenancies became the default in England on 1 May 2026, and the Making Tax Digital threshold drops again in April 2027. Third, the penalty for a missing record lands on the landlord or the agent, never on the vendor.
So the useful question during a demo is not “do you have maintenance?” It is “show me the repair log you would hand an inspector”. If you are still shortlisting, our Irish landlord software comparison and the UK and Ireland pricing guide cover the market side by side.
Every platform tracks tenancies. The question is what falls out the other end. In Ireland a tenancy has to be registered with the RTB within 1 month, and the registration has to stay accurate as the tenancy changes. In England a tenancy now has to appear on the PRS Database before you can serve a Section 8 notice, advertise the property or renew an HMO licence.
Rent review is where this gets expensive. Under the current Irish rules a rent review notice must be accompanied by evidence of 3 comparable properties drawn from the RTB Rent Register, dated within the correct window, and served in the prescribed form. Get any part of that wrong and the notice is void, the rent does not move, and the clock restarts. We covered the mechanics in the rent review notice that is invalid before it lands and the wider rules in Ireland’s rent cap guide.
What to look for: notice generation in the prescribed form, comparables attached to the notice rather than kept in a separate file, a served-on date recorded automatically, and the rent cap calculation applied before the notice is issued. In Ireland that means the national cap, the lower of CPI or 2 per cent a year, with the RTB Rent Calculator printout attached. In England it means a Section 13 notice on the prescribed form, which the tenant can challenge at the First-tier Tribunal. A system that lets you type any number into a rent field and press send is not helping you.
Ask the vendor: can you show me a rent review notice this system generated last week, with its evidence pack attached?
Most maintenance modules are a ticket queue with a status field. That was sufficient until repair obligations acquired fixed deadlines. Awaab’s Law sets named response times for named hazards, and phase 2 extends the list to cold, heat, falls, fire and electrical hazards. The measurement is in hours and days from the moment the report was received, which means the received timestamp is now a legal fact rather than an operational convenience.
Ireland works differently but lands in the same place. S.I. 137 minimum standards are enforced by local authority inspection, and a failed property cannot be relet until it is remediated. What an inspector wants is the history: what was reported, when, what was done, by whom, and what it cost. Our room-by-room S.I. 137 checklist sets out what is actually being checked.
The practical test is whether the system can answer, without anyone opening a spreadsheet, “which open repairs are past their statutory deadline right now”. If hazard category is not a field, that report cannot exist. If the received timestamp is set when a staff member types the ticket rather than when the tenant reported it, the report is wrong in your favour, which is the worst kind of wrong.
Ask the vendor: show me the overdue-by-statutory-deadline report, filtered by hazard category.
Rent collection, arrears tracking and an income statement are table stakes. The differentiator is whether the system produces what you are legally required to submit. For UK landlords that is Making Tax Digital: 4 quarterly updates plus a final declaration per year, per income source, from software HMRC recognises. We walked through what an MTD year actually looks like, and the threshold falls to 30,000 pounds in April 2027, which pulls a large group of small landlords in for the first time. Check where you sit with the MTD threshold checker.
For letting agents the equivalent is client money. SI 199 rules require client funds to be held and reconciled separately, and a system that treats client money as just another bank account will not survive an audit. For Irish landlords the year-end position is an income tax return with the correct treatment of allowable expenses and reliefs, which our rental income tax calculator models.
Housing bodies and councils have a third set again: NOAC returns, differential rent assessments and HAP reconciliation. Those are calculations with statutory formulas behind them, not report templates, and every one of the 31 council schemes computes differently. Our differential rent calculator and HAP calculator exist because the arithmetic is genuinely local.
Ask the vendor: which statutory returns does this system generate, and is that on the plan you are quoting me?
A tenant portal and automated notifications improve service. They do not, on their own, prove anything. The version of this feature that matters in a dispute is an audit trail: what was sent, to whom, at what address, on what date, and whether it was opened. Service of notice is the single most common procedural point on which an otherwise valid case falls apart.
The second half of this is data protection, and it is the part buyers skip. Applicant data has a retention limit, and keeping a rejected applicant’s file indefinitely because the CRM has no deletion policy is a live GDPR exposure. We set out what you can and cannot keep in GDPR for landlords.
There is now a third question, which did not exist 2 years ago. If the platform includes an AI assistant, ask what it does with your tenants’ data. EU AI Act deployer duties apply from 2 August 2026, and “our model improves from customer data” is a very different answer to “your data is never used for training”. Ask whether you can choose the underlying engine or whether you are locked to the vendor’s own, and whether every AI action is logged.
Ask the vendor: export me the full communication history for one tenancy, including delivery status and who viewed what.
Mobile access is usually sold as convenience: approve a work order from the car park. The higher-value use is capture. Inspections, check-ins, check-outs, deposit condition reports and hazard photographs all happen on site, and anything typed up later from memory is weaker evidence than something recorded in the room with a timestamp and a location.
The specification worth insisting on is that the mobile app writes the record of truth rather than a copy of it. That means structured inspection templates rather than a notes field, photographs attached to a specific room and item, and an offline mode, because a lot of housing stock has no usable signal indoors and a survey lost on the doorstep is a survey repeated. For smaller portfolios, mobile-first is the whole product, which is what Rentalize 360 is built around.
Ask the vendor: complete an inspection on a phone in aeroplane mode, then show me it syncing.
Rentalize treats statutory returns as first-class reports rather than exports you assemble yourself. RTB registration and rent review, the 2026 rent cap, BER and safety certificates, S.I. 137 and Part 4 each have a report behind them, and the evidence stays attached to the tenancy that produced it. Prebuilt NOAC and AHBRA returns, Part V returns and Making Tax Digital filings are not in the product today; Rentalize is not HMRC-recognised MTD software. Rentalize Core covers portfolios from 50 to 5,000 units for property management companies and letting agents, Rentalize Select handles lettings and tenant selection for local authorities and approved housing bodies, and rent collection runs underneath all of them through open banking and direct debit.
Two commitments are worth stating plainly because they are unusual. You choose the AI engine, whether that is Anthropic, OpenAI, Gemini or a self-hosted model, rather than being locked to ours, and tenant data is never used to train a model, with a full audit trail on every AI action. Reporting is also not gated: the BI suite, the compliance engine and Talia are on all 4 plans including Essential, so the compliance reporting you are buying the system for does not sit behind an upgrade. The detail is on property management reporting.
Take this list into the demo and make the vendor answer on screen rather than in a follow-up email. Anything that cannot be shown live usually means it is on a roadmap.
The last 2 are the ones vendors least expect. Migration terms decide how trapped you are in 3 years, and we set out what a move actually involves in switching property management software in Ireland.
At minimum: tenancy and lease tracking that produces statutory registrations and valid notices, maintenance with dated hazard-classified records, accounting that generates the filings you are legally required to submit, an auditable communication trail, and mobile capture for inspections. In Ireland and the UK, judge each one on the document it produces rather than on whether the module exists.
The obligations are documentary and local. Irish tenancies must be registered with the RTB and rent reviews evidenced against 3 comparables from the RTB Rent Register. UK landlords face Making Tax Digital quarterly filings, the PRS Database and Awaab’s Law repair deadlines. Software built for other markets tracks the data but does not produce these outputs.
Only some of it does. MTD requires 4 quarterly updates and a final declaration per income source, submitted from software HMRC recognises. Ask specifically whether the platform files to HMRC or only exports a spreadsheet you file elsewhere, and check which plan that sits on.
Score them on outputs, not feature lists. Ask each vendor to produce the same 5 artefacts live in the demo: a rent review notice with evidence, an overdue-repairs report by hazard category, a statutory return, a full communication export for one tenancy, and an offline inspection that syncs. Differences that matter show up immediately.
It is useful, with 3 conditions. Confirm in writing that your tenant data is not used to train a model, that every AI action is logged in an audit trail, and that you can choose or change the underlying engine rather than being locked to the vendor’s own assistant. EU AI Act deployer duties apply from 2 August 2026.
It varies widely, and it is the most common hidden cost. Compliance reporting is often positioned as a premium tier, which means the reason you bought the system sits behind an upgrade. Rentalize includes the BI suite, compliance engine and Talia on all 4 plans, including Essential.
If you would like to see how Rentalize handles this in practice, you can book a 20-minute walkthrough. We will use one of your own properties as the worked example.
Related reading
Free calculators and in-depth guides to Irish housing schemes.
Go or no-go viability for AHBs, the LDA and councils, across STAR, CREL and the AHF.
Learn more →Check eligibility and estimate Cost Rental rent across Ireland.
Learn more →Work out your HAP limit and any tenant top-up.
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