Tax Return Costs for Limited Companies: A Comprehensive UK Guide 

Running a limited company has several tax benefits, but it also introduces strict regulatory responsibilities. It must handle multiple corporate layers, including filing statutory accounts with Companies House and submitting a Company Tax Return with HM Revenue and Customs (HMRC). That is why understanding tax return costs for limited companies is important when budgeting for annual compliance obligations. 

This guide breaks down:

• Limited company tax return cost
• Average accountant fees for a limited company
• What you are actually paying for 
• Factors that can increase or reduce your bill

Let’s uncover the details. 

What is a Limited Company Tax Return?

A Limited Company Tax Return is an official document comprising the Form CT600, any supplementary pages, and company accounts and tax computations. It reports the company’s annual income, allowable expenses, profits, and losses to calculate the exact corporate tax owed. 

Usually, a limited company has to prepare annual accounts and submit a Company Tax Return (CT600) to HMRC when it has been issued a notice to deliver one. A company must file it within 12 months of the end of its Corporation Tax accounting period. A Corporation Tax accounting period cannot exceed 12 months. So, a company may need to file more than one tax return. 

How Much Do Tax Return Costs for Limited Companies?

The cost of the corporation tax return depends on the complexity of the work. If an accountant is simply preparing year-end accounts and the CT600 from organised bookkeeping records, the fee may be modest. However, if the records require substantial corrections, reconciliations or additional tax work, then the cost can increase. 

Currently, a low-volume UK limited company with well-maintained records may pay £600 to £2,000+ per year for annual statutory accounts and a Corporation Tax return (CT600). However, other providers quote higher or lower tax return costs for limited companies depending on the scope of the engagement. 

So, it is recommended to ask about the services included in the price before choosing an accountant based purely on the lowest figure.

What Is the Average Accountant Fees for Limited Company UK?

There is no fixed fee for having an accountant prepare your company’s tax return. Accountants set their own prices based on the work involved. The table below highlights the estimated tax return costs for limited companies in the UK:

Disclaimer: The figures in the table are not official UK fee bands. The fees can vary based on the company and the services included. 

What Is Included in Limited Company Tax Return Fees? 

When comparing the corporation tax return cost, you need to check whether the tax return costs for limited companies include:

• Preparation of statutory annual accounts
• Corporation Tax calculation
• Filing accounts with Companies House
• Preparation and submission of the company tax returns
• Basic year-end tax adjustments
• Communication with HMRC where included in the agreed service 
• Basic year-end accounting and tax guidance, where included in the engagement 

Keep in mind that not every accountant includes all of these services in a single fee. For instance, one accountant may charge £900 for accounts and Corporation Tax, while another may charge £1,500 and also include payroll, bookkeeping, and routine advice throughout the year. This shows that the cheaper quotation does not always mean better value. 

What Are Limited Company Accounts and CT600 Cost?

While discussing tax return costs for limited companies, people often confuse company accounts with CT600. Limited company accounts are statutory financial statements prepared for the company and filed with Companies House. In contrast, relevant accounts and tax computations are submitted to HMRC as part of the Company Tax Return. 

Year-End Accounts Preparation Cost

The company’s statutory accounts normally include the balance sheet, profit and loss account and notes to the accounts. However, the information filed with Companies House can be reduced for eligible small and micro-entities. 

Moreover, the accounts your accountant prepares must comply with the applicable UK accounting standards, such as FRS 102 or FRS 105, depending on the company’s circumstances. 

Corporation Tax Return Costs for Limited Companies 

The accountant then prepares the Corporation Tax calculation and CT600, which involves calculating taxable profits and making relevant tax adjustments, such as for capital allowances and non-deductible expenses. HMRC requires these calculations to show how the figures on the CT600 were derived from the accounts.

What Is the Cost of Filing a Company Tax Return?

You need to understand the difference between accountancy fees and government filing fees. HMRC does not set a standard filing fee for submitting a Company Tax Return. This means the cost of filing a CT600 depends on how it is prepared and filed.

Since HMRC’s online filing service closed on 31 March 2026, most companies now need to use compatible commercial software, and it may involve a cost.  Therefore, the tax return costs for limited companies depend on whether you prepare the return yourself or pay an accountant or software provider. 

What Affects the Limited Company Accountant Fees?

Several factors can influence the accountant fees of a limited company.

Turnover and Transaction Volume

If your company has a small number of simple transactions, processing generally takes less time. However, if it has thousands of sales and purchase transactions, it may take more time and cost more. 

VAT Registration

Usually, VAT-registered companies have additional reporting responsibilities. Preparing VAT returns and maintaining the underlying records can increase tax return costs for limited companies. 

Payroll and Employees

If your company employs staff, your accountant may need to manage payroll, Pay As You Earn (PAYE) reporting and related administration. Payroll is often charged separately or included in a monthly package.

Quality of your Bookkeeping

Indeed, good bookkeeping can reduce the amount of time an accountant spends correcting financial records.

If your invoices are organised, expenses are correctly recorded, and bank transactions are reconciled, your year-end work may be considerably simpler.

Complexity of the Company’s Tax Position 

Companies with straightforward trading income and ordinary business expenses are typically easier to deal with than businesses that involve international transactions, research and development claims, or complex financing arrangements. Companies with associated companies, international transactions, research and development claims, group structures or complicated financing arrangements may require additional tax work. 

Additional Tax Advice

Specialist advice and tax planning are usually different from simply preparing and filing a Corporation Tax return. If you need detailed tax planning, your accountant’s fee may increase. 

Fixed Fee Accountants for Limited Companies vs. Hourly Rates? 

When choosing the method to pay for accounting services, the billing model can affect how predictable your costs are. 

With fixed fee accountants, you generally pay an agreed amount for specified services, such as Corporation Tax returns and year-end accounts. This can make budgeting easier, but additional work may incur extra tax return costs for limited companies. 

Some UK accountants charge by the hour. In this case, the total cost can vary depending on the time required, particularly if the accounts or tax return require additional work. Furthermore, a fixed fee does not necessarily mean every piece of work is included, so check whether bookkeeping corrections, HMRC enquiries, tax planning, VAT, payroll and additional returns are charged separately. 

How to Reduce Tax Return Costs for Limited Companies?

If you want to keep your limited company tax return cost under control, consider the following:

Keep Accurate Bookkeeping Throughout the Year

The easiest way to reduce your tax return costs is to keep your financial records well-organised and up to date. 

Ask for a Fixed-Fee Quotation

A fixed monthly or annual fee can make budgeting easier for your company. However, check the services included and whether additional work will incur extra charges.

Compare Like-for-Like Services

When comparing tax return costs for limited companies, make sure each quotation covers the same services.

Consider Whether You Need Ongoing Support

A small company with straightforward accounts may only need year-end compliance work. Whereas a growing company may benefit from regular bookkeeping, VAT, payroll and tax support.

Final Thoughts

Tax return costs for limited companies vary because there are no fixed accountant fees. Usually, the tax return costs depend on the services required and the complexity of the company’s accounts. 

Before choosing an accountant, you should compare quotes and check what is included, such as statutory accounts, CT600, bookkeeping, VAT and payroll. Remember that accountant fees are separate from Corporation Tax due and Companies House fees. 

Need an accountant for your tax returns? AccountingFirms is here to help. Our platform has qualified accountants who can support your company’s accounting and tax needs. 

Search our platform, compare accountants, and find one that suits your business. 

Disclaimer: The information provided on AccountingFirms.co.uk is for informational purposes only and should not be considered as financial advice. Always consult with a professional accountant to ensure compliance with UK laws and regulations.