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Home/Blog/How Letting Agents Stay Compliant Across a Portfolio (2026)
Compliance software

How letting agents stay compliant across a portfolio

How property compliance software keeps a whole portfolio legal: gas, EICR and EPC tracking, deposits, Right to Rent, licensing and contractor management — every date watched, every certificate ready, penalties avoided.

By Complys·4 September 2026·10 min read

Managing let property in Britain means living by a calendar of legal dates, and the penalties for missing them are unusually harsh. A gas safety check that lapses, a deposit that was not protected in time, a Right to Rent check that was never done — each of these can mean a fine, an inability to regain possession, or a claim from a tenant, and they land on the agent or landlord regardless of how well the property itself is run. Multiply that across a portfolio of dozens or hundreds of properties, each with its own set of certificates on its own renewal cycle, and you have one of the most relentlessly date-driven compliance jobs there is. This is exactly the kind of work that spreadsheets handle right up until the day they do not.

This guide covers what a managed property actually has to have and when, why property compliance is so easy to lose control of at portfolio scale, what property compliance software genuinely does, and how a letting or block manager should choose a system that keeps every certificate current and every contractor safe.

What a managed property must have, and when

The core obligations are well defined and mostly date-driven. A Gas Safety Record (the CP12) is required annually for every property with gas appliances, carried out by a Gas Safe registered engineer, with a copy given to the tenant. An Electrical Installation Condition Report (EICR) is required at least every five years, with any remedial work completed and evidenced. An Energy Performance Certificate (EPC) is needed to market a property and must meet the minimum energy efficiency standard, valid for ten years. Smoke alarms must be present on every storey and carbon monoxide alarms in rooms with a fixed combustion appliance, checked at the start of each tenancy. Where there is a shared water system or higher legionella risk, a legionella risk assessment is expected.

Then come the tenancy-side duties. A deposit must be protected in a government-approved scheme within 30 days of receipt and the prescribed information served on the tenant — miss this and you can lose the right to serve a Section 21 notice and face a penalty of up to three times the deposit. Right to Rent checks must be carried out on every adult occupier before the tenancy, with follow-up checks where someone's right is time-limited. Many properties also need a licence — mandatory HMO licensing, or additional and selective licensing schemes that vary by local authority — each with its own conditions and renewal date. And the ground is still shifting: the Renters' Rights Act is reshaping how tenancies work, notice is served and rents are reviewed, which makes staying current on the rules themselves part of the job.

Why property compliance is uniquely hard to hold together

The difficulty is not any single obligation; it is the sheer number of independent dates running in parallel. One property might have a gas certificate due in March, an EICR due in two years, a licence up for renewal in September and a tenancy whose deposit clock started the day the tenant moved in. Across a portfolio, that is hundreds of dates, none of them synchronised, each one a potential fine or lost possession if it slips. A spreadsheet can list them, but it will not tell you that three gas certificates are due next month or that a licence renewal window opened last week, and the person who used to watch the sheet is on holiday.

There is also the contractor dimension, which property people feel acutely. Every certificate and every repair depends on a contractor — a Gas Safe engineer, an electrician, a general trade — and using one whose own insurance or accreditation has lapsed transfers their risk onto you and your landlord. Chasing certificates back from contractors after a job, checking they are valid, and matching them to the right property is a job that never quite finishes. When a landlord, an insurer or a prospective buyer's solicitor asks for the full compliance file on a property, assembling it from emails, a spreadsheet and a filing system built up over years can take a day per property you do not have.

What property compliance software actually does

Property compliance software is built around the calendar problem. At its heart is a per-property record of every certificate and obligation with expiry tracking and reminders — gas, electrical, energy, alarms, legionella, licences — colour-coded across the whole portfolio so you can see at a glance what is valid, what is expiring and what is overdue, with alerts in good time before each date. Instead of hoping the spreadsheet gets checked, you get told, weeks ahead, that a batch of gas certificates is coming due, and you book them before they lapse rather than after a tenant complains.

On the tenancy side it tracks deposits and their protection deadlines, Right to Rent checks and their follow-up dates, and the documents that make up a compliant tenancy, so the duties with the sharpest penalties are the ones the system watches hardest. For maintenance it manages your contractors — holding their insurance and accreditations, checking they are current before you instruct them, and collecting the certificate back against the right property when the job is done — so you only ever send compliant, insured trades and your evidence file assembles itself as you go. Many systems add a live compliance score per property and across the portfolio, inspection and visit scheduling, and landlord-facing reporting so owners can see their property is being kept legal without you compiling a report by hand.

The result is that the two things that go wrong — a date slipping and a contractor's cover lapsing — are both caught before they become a fine or a claim, and the file a landlord or insurer asks for is produced in minutes.

The contractor angle: only send compliant trades

It is worth dwelling on the contractor point because it is where property firms carry hidden risk. When you instruct a trade to a managed property, you are relying on their competence and their insurance, and if either has lapsed the exposure flows back to you and your landlord. A good system will not let that happen quietly: it keeps every contractor's public liability, any trade accreditations and their qualifications on file with expiry tracking, and flags — or blocks — a contractor whose cover is out of date before you send them to a job. For bigger works it can route approval to the landlord, so a large spend is signed off before it happens rather than argued about after. The same discipline that protects you legally also raises the standard of the trades you work with, because only the organised, insured ones stay on your approved list.

How a letting or block manager should choose it

The tests are specific to the work. First, is it built for property and lettings, so it already understands gas, EICR, EPC, deposits, Right to Rent and licensing, rather than a generic tool you would have to model all of that in yourself? Second, does it track every date per property and remind you across the whole portfolio, because portfolio-wide visibility is the entire point? Third, does it handle contractors and maintenance, not just certificates, so the trades you instruct are checked and their documents captured automatically? Fourth, can landlords see appropriate reporting, since keeping owners confident is half the relationship? Fifth, is it UK-built around current legislation — including the changes the Renters' Rights Act brings — and priced per property or per portfolio in a way that makes sense at your scale, ideally with a trial so you can load real properties before committing.

What it costs, and what it prevents

Property compliance software is generally priced by portfolio size, a modest cost per property per month, and it should scale down to a handful of units and up to hundreds. Set that against the specific penalties it prevents: up to three times a deposit for a protection failure, fines and lost possession for a missed gas certificate or Right to Rent check, and the reputational damage of a landlord discovering their property was let non-compliant. A single one of those outcomes on a single property can cost more than a year of software across the whole portfolio. As with any compliance tool, the value is not the storage — it is the watching, and the fact that the watching never takes a day off.

Blocks and communal areas: an extra layer of duties

Anyone managing flats or a block carries obligations beyond the individual units, and these are the ones that have tightened most in recent years. Communal areas need their own fire risk assessment, and following the Grenfell tragedy and the Building Safety Act the expectations around fire safety in blocks — assessments, fire doors, means of escape, and for higher-risk buildings a much heavier regime — have become far more demanding and far less forgiving of gaps. Communal electrical installations need periodic inspection just as the units do. Asbestos in common parts of buildings constructed before 2000 must be managed under a duty-to-manage, with a register and a plan. Lifts, where present, fall under the lifting-equipment examination regime. Each of these is a recurring obligation with a date attached, sitting on top of the per-flat calendar, and a block manager who tracks the flats but forgets the communal duties has only done half the job.

Software that treats the building as an entity in its own right — with its own assessments, certificates and renewal dates alongside the units within it — is what keeps that second layer from being overlooked. It is easy to remember the gas certificate for flat 3; it is easy to forget that the communal fire risk assessment was due for review, right up until it matters.

Why compliance and possession are linked

One point that catches landlords out is that compliance is not only about avoiding fines — it directly affects your ability to get your property back. To serve a valid Section 21 notice under the current rules you generally have to have provided the tenant with a valid gas safety record, a valid EPC and the government's How to Rent guide, and to have protected the deposit correctly. Miss any of those and the notice can be invalid, leaving you unable to regain possession however good your reason. The Renters' Rights Act is reshaping this area significantly, changing how tenancies end and how rents are reviewed, which makes staying current on both your documents and the rules themselves more important, not less. The practical lesson is that the same certificates you keep for safety and to avoid penalties are the certificates that protect your legal position as a landlord, so letting them slip has consequences well beyond a fine.

Inspections and visits as evidence

Regular property visits and mid-tenancy inspections are good management, but they are also evidence — of the condition of the property, of hazards spotted and dealt with, and of a landlord meeting their responsibilities. Done on paper they tend to be inconsistent and hard to find later; done through a system they become a dated, photographed record attached to the property, which is invaluable if a dispute arises over condition, deposit deductions or a disrepair claim. Software that schedules these visits, reminds you when they are due and captures the findings turns a good habit into a defensible record, and closes the loop between spotting an issue and getting a compliant contractor to fix it.

Compliance as the thing that wins and keeps instructions

For a letting or block manager there is a commercial edge to all this that is easy to miss when you are thinking of compliance as a chore. Landlords are increasingly aware of the penalties they face, and the ones worth having are choosing agents they can trust to keep them out of trouble. Being able to show a prospective landlord that every property you manage has a live compliance record, that nothing is ever left to lapse, and that they can see their own property's status at any time is a genuine differentiator against the agent still running a shared spreadsheet. It turns compliance from a cost centre into part of the pitch.

It also protects the instructions you already have. The fastest way to lose a landlord is for them to discover, usually at the worst moment, that their property was let with an expired certificate or an unprotected deposit on your watch — because the liability may be theirs, but the blame will be yours. A system that makes it practically impossible for a date to slip unnoticed is, in effect, retention insurance: it keeps the landlord out of trouble, keeps you out of the difficult conversation, and quietly reinforces every month that you are the professional choice. Over a portfolio and over years, that reliability compounds into a reputation that wins referrals.

The risks that quietly get forgotten

Beyond the headline certificates, a handful of duties get overlooked precisely because they are less familiar. Legionella is the classic example: landlords must assess the risk from water systems, and while many properties are low risk, "we assumed it was fine" is not an assessment. Portable appliance testing for any appliances the landlord provides, window-restrictor and blind-cord safety where children may be present, and the safe storage and servicing of solid-fuel appliances all sit in the same category — individually minor, collectively the kind of thing that turns up in a serious-incident investigation or a disrepair claim. A system that lets you record these assessments against a property and set a review date means the unglamorous risks are managed and evidenced rather than quietly assumed away, which is exactly where a diligent manager is separated from a lucky one.

Where Complys fits

Complys handles property and lettings compliance in one place: a per-property record of gas, electrical, energy, alarms, legionella and licences with expiry tracking and portfolio-wide reminders; deposits, Right to Rent and tenancy documents tracked to their deadlines; contractor management that checks a trade's insurance and accreditations before you instruct them and captures the certificate back against the property; inspections, a live compliance score and landlord reporting. It is built around current UK rules, updated as the Renters' Rights Act changes them, and it is free to start — you can load a few real properties and see the whole calendar in one view before you pay anything.

The bottom line

Property compliance is a calendar you cannot afford to miss, run across a portfolio where every unit has its own dates and every repair depends on a contractor whose cover might have lapsed. Spreadsheets can list all that; they cannot watch it, and watching is the whole job. Property compliance software keeps every certificate current, guards the tenancy duties with the heaviest penalties, makes sure you only ever send insured trades, and turns the compliance file a landlord or insurer asks for into a two-minute export. Whether you choose Complys or another system, judge it the same way: built for property, tracks every date across the portfolio and reminds you, manages contractors as well as certificates, and priced to make sense at your scale.

Keep every property legal, every date watched

Complys tracks gas, electrical, energy, deposits, Right to Rent and licensing across your whole portfolio, checks contractors before you instruct them, and produces a property's compliance file on demand — free to start.