The main cost to plan for is the accountant’s fee. These covers preparing, checking and submitting your accounts properly. For property companies, these fees are usually higher than for typical small businesses because the work is more complex.
What Are the Accountants Cost Ranges for Property Companies to File Annual Accounts?

The figures below are indicative ranges for the 2025 to 2026 filing cycle. Actual cost for annual accounts depends on the complexity of the work, the accountant's experience, and how well-organised your records are when you hand them over.
Single-Property BTL SPV, Micro-Entity, No Employees
For landlords who incorporated a buy-to-let (BTL) company, holding one residential property with no employees, the company qualifies as a micro-entity if:
Turnover: ≤ £1,000,000
Balance sheet: ≤ £500,000
Employees: ≤ 10 (2 out of 3 criteria needed)
Accountant fees: £800 to £1,500 per year (including the CT600 return)
Lower end: For straightforward cases with clean records, no ATED exposure, and simple mortgage interest reporting.
Upper end: If there’s a need for property valuation, deferred tax, or an ATED return.
Portfolio Company with 3 to 10 Properties
For companies holding 3–10 properties, the workload increases with more properties, mortgages, and complex reporting (especially under FRS 102). If VAT registered or dealing with intercompany loans, complexity increases.
Accountant fees: £1,500 to £3,500 per year
Lower end: Basic reporting, no VAT or intercompany issues.
Upper end: With VAT returns, fair value assessments, or group structures.
Fee Examples
Single-Property BTL (Micro-Entity)
Turnover: £50,000
Balance Sheet: £250,000
Fee: £800–£1,200
Single-Property BTL (Micro-Entity with Complexity)
Turnover: £80,000
Balance Sheet: £450,000
Fee: £1,200–£1,500
Portfolio Company (3–10 Properties, No VAT)
Turnover: £250,000
Balance Sheet: £1,200,000
Fee: £1,500–£2,500
Portfolio Company (10+ Properties, VAT Registered)
Turnover: £750,000
Balance Sheet: £3,000,000
Fee: £2,500–£3,500+
Factors Affecting Company Accounts Fees
- More properties = more work (mortgages, valuations, fair value assessments).
- VAT registration adds quarterly returns.
- Group structures or intercompany loans increase complexity and cost.
- ATED returns are required for properties worth over £500,000.
Property Development Company with Active Projects
When you engage subcontractors on construction work, you normally fall under the Construction Industry Scheme (CIS). As a CIS contractor, you must register with HMRC, verify subcontractors, deduct tax from payments (unless they have gross status), submit monthly CIS returns, and pay the tax withheld to HMRC.
Note
£2,500–£6,000+ is a reasonable ballpark for an actively trading development company with ongoing projects, but the exact fee will depend on the volume of transactions, CIS filing requirements, industry‑specific reporting, and how well organised your records are.
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The Self Annual Account Filing Question in 2026
Many small company directors consider filing their own accounts and tax returns to save costs, but the landscape changed significantly in April 2026. HMRC’s free online filing service for CT600 and accounts which was available to small companies with straightforward affairs closed on 31 March 2026. From 1 April 2026, all UK company tax returns (CT600) must be filed electronically using HMRC‑approved software that can produce the required iXBRL‑tagged accounts and tax computations.
The software cost is only part of the issue. The main challenge for property company directors filing themselves is ensuring compliance with UK tax and accounting rules. Directors must correctly prepare statutory accounts, complete the CT600 with capital allowances, property income, and ATED liabilities, and ensure iXBRL tagging is accurate. Mistakes like missing claims, using the wrong accounting standard (FRS 105 vs FRS 102), or misclassifying mortgage interest can lead to higher taxes or HMRC enquiries. For most, the time and risk involved in self-filing outweigh the savings, making professional help a more reliable choice.
Accountant Fees Are a Deductible Business Expense
Accountant fees that a company incurs for preparing its statutory accounts, filing its corporation tax (CT600) return, and complying with routine tax and accounting obligations are generally allowable expenses for UK corporation tax purposes, provided they are incurred wholly and exclusively for the company’s trade. This means they can be deducted from the company’s taxable profits, reducing the amount of tax the company pays.
For example,
At the current 25% main corporation tax rate, a £1,500 accountant fee would reduce taxable profits by £1,500, producing a tax saving of £375. The effective after‑tax cost to the company is therefore about £1,125, not £1,500.
Similarly, if a portfolio company pays £2,500 in accountant fees, the corporation tax saving at 25% would be £625, making the net cost around £1,875.
If an accountant identifies missed deductions, such as capital allowances or other allowable expenses, even a small correction can help offset the cost of the fee. This shows why specialist advice often provides better financial results than opting for the cheapest option. Missing legitimate deductions can lead to paying more tax than necessary.
What to Look for When Choosing an Accountant for a Property Company
Not all accountants have specialist knowledge of property accounting and tax. Before engaging one, check that they:
- Understand investment property accounting, including how fair value changes affect profit and loss and deferred tax under UK GAAP (FRS 102).
- Know the corporate tax treatment of mortgage interest, which differs from the restrictions that apply to individual landlords.
- Are familiar with ATED rules if your company owns residential property near or above the ATED threshold.
It’s also valuable if they hold a recognised qualification (such as ACCA or ICAEW) and have real experience with property clients rather than only general practice work.
How UKPA Can Help
Our expert advisers ensure your property business is compliant, help identify all allowable deductions, and optimise your tax position.
Conclusion
For a single-property BTL SPV, accountant fees typically range from £800 to £1,500 per year for handling Companies House filings and the CT600. For a portfolio company with three to ten properties, fees range from £1,500 to £3,500, depending on complexity, VAT registration, and financing. An active development company can expect fees starting at £2,500, reaching up to £6,000 or more for more complex projects.
While self-filing is possible, it carries risks due to the specialist knowledge required in areas like FRS 102, capital allowances, and iXBRL formatting. Professional help ensures accuracy, reduces tax liabilities, and makes the effective cost lower due to tax savings, as accountancy fees are generally deductible for corporation tax.
Frequently Asked Questions
Accountant fees in the UK typically range from £600 to £1,500 per year for a small, simple limited company. For larger or more complex businesses, fees can go from £1,500 to £5,000+. Some offer monthly packages, ranging from £60 to £450.
While it’s not legally required, most small businesses hire accountants for expertise in compliance, tax planning, and avoiding costly mistakes. The cost is often outweighed by the savings and peace of mind they provide.
AI can automate routine tasks like data entry, but it’s unlikely to fully replace accountants due to the need for human judgment in tax planning, compliance, and advisory roles. AI will augment accountants rather than replace them.
No, but hiring an accountant is recommended for most businesses to ensure compliance, avoid errors, and benefit from tax planning advice. Directors can file their own accounts and CT600 if they have the right knowledge and tools.
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