If you own rental property in the UK, you are responsible for reporting your income and paying the correct tax. The rules are not simple, and they change often. Many landlords bring in a specialist. But what exactly do accounting services for property owners include, end to end across a tax year? This guide walks through the whole engagement: how onboarding works, the records you provide, the annual compliance cycle, and the eight service areas applied to a real rental business. If you want the role defined in plain terms first, see our companion guide on what a property accountant does.
Why property accounting is different from general accounting
Property income has its own rulebook. The profits of a UK property business are computed using the trading-income rules adapted for property, under ITTOIA 2005 s.272 [2], but several reliefs that a self-employed trader takes for granted simply do not apply to a residential landlord. The clearest example is finance costs. Under ITTOIA 2005 s.272A [3], a residential landlord who holds property personally cannot deduct mortgage interest from rental profit. This is the rule landlords know as Section 24, and a general accountant who is not current on it can produce a return that overstates your relief and understates your tax.
A property specialist works with these distinctions every day. They know how to handle the capital-versus-revenue line on works to a property, how houses in multiple occupation affect expenses, and how the abolition of the Furnished Holiday Lettings regime in April 2025 moved former holiday-let owners onto the standard residential rules. They also plan ahead for the live timetable on Making Tax Digital for Income Tax and the separate property income tax rates that start on 6 April 2027. Property accounting is therefore as much about staying current as about arithmetic.
What to expect when you engage a property accountant: onboarding
A good engagement starts before any return is touched. The first stage is formal onboarding. The accountant issues an engagement letter setting out the scope of work, runs anti-money-laundering identity checks, and asks you to authorise them as your tax agent so they can deal with HMRC on your behalf through HMRC's online agent services. Only then does the work begin.
Next comes a discovery review. The accountant looks at your current portfolio, how the properties are held, your prior-year returns, any outstanding HMRC matters, and your plans for the next few years. This is where the genuinely useful advice surfaces, because it is the point at which structure can still be changed before a deadline forces your hand.
Consider an anonymised example. A landlord in Leeds with four buy-to-let properties had been running everything from a single spreadsheet and filing each January in a rush. At onboarding, the accountant moved them onto a digital record-keeping system ahead of Making Tax Digital, identified that one property had been wrongly treated as a Furnished Holiday Let after the regime ended, and flagged a planned sale that would trigger a 60-day Capital Gains Tax return. None of that was a tax return task. It was the groundwork that made every later filing accurate.
The records you need to provide
The quality of your accounts depends on the quality of your records, so this is where your input matters most. For each property your accountant will typically want:
- Rental statements from your letting agent, or your own rent records if you self-manage
- Invoices for repairs and maintenance, kept separate from improvements, because repairs are deductible against rental profit and improvements are capital
- Mortgage interest certificates or annual statements, which feed the Section 24 calculation
- Completion statements from your solicitor whenever you buy or sell, for the capital records and any future gain
- Deposit-protection scheme records
- Bank statements for the account through which rents and costs flow
By law you must keep these records for at least 5 years after the 31 January Self Assessment deadline for the relevant tax year, and in practice many landlords keep them for around 7 years to be safe [1]. Once you fall within Making Tax Digital, those records must be kept digitally rather than on paper, which is why accountants increasingly move clients onto compatible software at onboarding rather than waiting for the mandate date.
The annual compliance cycle
The real value of an ongoing service shows in the rhythm of the tax year, not in a single filing. A typical year for a personally-held portfolio runs like this. If you are within Making Tax Digital, there are quarterly updates to HMRC through the year, summarising income and expenses from your digital records. After the 5 April year-end, the accountant prepares the SA105 property pages of your Self Assessment return, finalises the figures, and files by 31 January. Tax is due on 31 January, with a payment on account on 31 July where it applies. On top of this regular cycle, any property disposal triggers its own 60-day UK Property Disposal return at the point of completion.
Mapping the year out in advance is the part that competitors and the HMRC guidance pages tend not to do for you. It is also where a specialist earns their place, because a review in, say, February or March, before the 5 April year-end, leaves room to act on what the figures show. A review the following January, after the year has closed, can only report it.
The eight service areas applied
Most accounting services for property owners cover the same eight areas. The difference between a brochure and a working service is whether each area is actually applied to your position. Here is what each one involves in practice.
1. Rental income and expense tracking
Your accountant sets up a system to capture all rental income and allowable expenses, and advises on the cash basis versus accruals (traditional) accounting. Allowable expenses are those incurred wholly and exclusively for the rental business, and commonly include letting-agent fees, repairs and maintenance (not improvements), insurance, ground rent and service charges, professional fees, and any utilities or council tax you pay [1]. The cash basis is the default for many smaller landlords; if you prefer accruals you opt out on the return. Getting the allowable-expenses line right is the single biggest driver of an accurate rental profit figure.
2. Self Assessment and the SA105
For most individual landlords the annual Self Assessment return is the core compliance task. The accountant prepares the SA105 property pages, reports income and deductions correctly, and calculates the liability, including any interactions such as the High Income Child Benefit Charge or student loan repayments. HMRC can charge penalties where records are not accurate, complete and readable, or are not kept for the required period [1], so the records work above and the return work here are two halves of the same job.
3. Section 24 and the finance-cost restriction
Under ITTOIA 2005 s.272A [3], residential landlords who hold property personally cannot deduct finance costs from rental profit. Instead they receive a basic-rate tax reducer, currently 20%, on those costs. The reducer is capped by the lowest of three figures: the finance costs, the property profits, and your adjusted total income above the personal allowance, with any unused amount carried forward. From 2027-28 the reducer is given at the new property basic rate of 22% rather than 20%, in line with the separate property rates explained below. Your accountant applies the cap, manages the carry-forward, and models whether the restriction makes a different structure worth considering. Read our applied guide on claiming mortgage interest relief under Section 24.
4. Capital Gains Tax planning and reporting
When you sell a residential rental property you may owe Capital Gains Tax. The rates are 18% within the basic-rate band and 24% above it, and the annual exempt amount is £3,000. Your accountant calculates the gain, applies reliefs such as Private Residence Relief under TCGA 1992 ss.222 to 226 [4] where part of the period qualifies, and handles the reporting. The reporting scope is widely misunderstood, so it is worth being precise. If you are UK resident and tax is due on the disposal, you file and pay through a 60-day UK Property Disposal return within 60 days of completion. If you are non-resident, you must file on every UK land disposal within 60 days, whether or not any tax is due, under the territorial-scope rules in TCGA 1992 s.1A [5]. Our complete guide to CGT on property and our guide to CGT payment deadlines cover this in full, and we explain reliefs in our guide to Private Residence Relief for landlords.
5. Making Tax Digital compliance
Making Tax Digital for Income Tax is live and phased by income. Landlords and sole traders with qualifying income over £50,000 are in from 6 April 2026, over £30,000 from 6 April 2027, and over £20,000 from 6 April 2028. The test is based on your gross income from self-employment and property combined, before expenses, not your profit. Limited companies are outside this regime; they follow their own rules. Where property is jointly owned, each owner applies the test to their own share of the gross income, and HMRC has confirmed a simplified reporting approach for jointly-owned property [6]. Your accountant chooses compatible software, sets up the digital records, and handles the quarterly updates and the year-end final declaration. See our MTD guide for landlords.
6. Limited company accounting and Corporation Tax
If you hold property through a company, the work is different again. The company files annual accounts at Companies House and a Corporation Tax return with HMRC, and the directors keep proper company and accounting records [7]. Corporation Tax is charged at 19% on profits up to £50,000 and 25% on profits over £250,000, with marginal relief tapering between those points. The company may also need to register for VAT if it meets the threshold. Many landlords incorporated to step outside Section 24, but a company brings its own filing duties and costs, which is why the decision is best modelled before, not after. Our complete guide to buy-to-let limited companies sets out the process and the ongoing obligations.
7. VAT advice and registration
VAT mainly matters for commercial property. If you own commercial premises you may be able to opt to tax (waive the exemption) to recover VAT on related costs, and your accountant advises on whether that is worthwhile given your tenants and plans. Residential lettings are generally exempt, so VAT on costs is usually not recoverable, although there are specific reliefs for new builds and certain conversions. The right answer depends on the property and how it is used.
8. Tax planning and strategy
Beyond compliance, the planning work ties everything together. It typically includes:
- Whether to hold property personally or through a company, weighing Section 24 against the cost and the Corporation Tax position
- Inheritance tax on the portfolio, noting that a standard buy-to-let business does not normally qualify for Business Property Relief because it is treated as an investment rather than a trade
- Structuring purchases and disposals to use allowances and reliefs and to manage the timing of any Capital Gains Tax charge
- Reviewing the portfolio periodically for tax efficiency
- Modelling the cash-flow and Section 24 interaction of the Renters' Rights Act 2025, whose move to periodic tenancies and revised rent-increase rules from 1 May 2026 changes how rental income behaves through the year
You can explore our full range of services to see how each of these areas fits together for a landlord.
The 2027 property income tax change your accountant is planning for
The single biggest forthcoming change is already on the statute book. The Finance Act 2026 (c.11), which received Royal Assent on 18 March 2026, created separate property income tax rates. Section 6 introduces a property basic rate, a property higher rate and a property additional rate, and section 7 sets them for 2027-28 at 22%, 42% and 47% [8]. Each rate sits 2 percentage points above the corresponding main rate, so a landlord's net rental profit is taxed slightly higher than other income from the same band. There is no new basic-rate wedge: the change raises the property rates themselves rather than reshaping the bands, and the Section 24 reducer rises to 22% in step. These rates apply to property income taxed in England, Wales and Northern Ireland; only Scotland sets its own property rates (through the Scottish Parliament). Section 8 and Schedule 2 give the Senedd a future power over Welsh property rates, but it is not in force for 2027-28 and applies only from a Treasury-appointed year after 2026-27. Your accountant is already factoring this into 2027-28 projections. Our guide to the 2027 property income tax rates works through the detail, and our overview of landlord tax changes puts it in context.
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What accounting services do not typically include
It helps to be clear about the boundaries. Most accounting services do not include:
- Legal advice, such as evictions or lease disputes
- Mortgage broking or regulated financial advice
- Property management, such as finding tenants or arranging repairs
- Day-to-day bookkeeping, although many accountants offer this as a separate service or include a year-end review
Where you need one of these, a good accountant can usually refer you to a trusted professional who works alongside them.
How property accountants typically structure their fees
Charging models vary, and understanding them helps you compare like with like. The common approaches are a fixed annual fee for a defined scope, an hourly rate, or a tiered structure that scales with the size of your portfolio. What drives the scope is the number of properties, whether they are held personally or in a company, how complete your records are, and whether there is a one-off event in the year such as a disposal or an incorporation. The practical advice is to agree the scope and the basis of charging in writing before any work starts, so there are no surprises. For a fuller treatment of how to compare quotes and what affects the level of work, see our guide on what a property accountant costs.
How to choose a property accountant
Not every accountant is right for a landlord. The features that matter are genuine experience with rental tax, current knowledge of Section 24 and Making Tax Digital, the ability to advise on incorporation and Corporation Tax, clear written engagement terms, and a track record with clients who look like you. Membership of a recognised professional body, such as the ICAEW or ACCA, is a reasonable baseline. Our guide on how to choose a property accountant walks through the selection process, and if you are weighing up local versus specialist options, our guide to finding a buy-to-let accountant near you covers what to look for.
The bottom line
Accounting services for property owners are not just about filing a return in January. They run across the whole tax year, from onboarding and records, through the quarterly and annual cycle, to planning for the next change before it lands. With Making Tax Digital now live, the Furnished Holiday Lettings regime gone, and the separate property income tax rates arriving in April 2027, having a specialist who applies these rules to your actual portfolio matters more than ever. If you are unsure where to start, contact us for a no-obligation discussion about your portfolio, and use our tax calculators to get an initial view of your position.
Sources
- gov.uk: Work out your rental income when you let property - GOV.UK
- legislation.gov.uk: ITTOIA 2005 s.272 - Application of trading income rules
- legislation.gov.uk: ITTOIA 2005 s.272A - Restricting deductions for finance costs (Section 24)
- legislation.gov.uk: TCGA 1992 s.222 - Private Residence Relief
- legislation.gov.uk: TCGA 1992 s.1A - Territorial scope (non-resident CGT)
- icaew.com: Update on Making Tax Digital and jointly owned property - ICAEW
- gov.uk: Running a limited company: directors' responsibilities - GOV.UK
- legislation.gov.uk: Finance Act 2026 s.6 - New rates of income tax on property income