Cost of Running a Company

Introduction

At Towerstone Accountants we provide specialist limited company accountancy services for directors and owner managed businesses across the UK. We created this webpage for people running a company who want clear answers on tax, payroll, Companies House duties, and day to day compliance without jargon. Our aim is to help you understand your responsibilities, reduce the risk of penalties, and know when to get professional support.

One of the biggest misconceptions I see is the idea that setting up a limited company is the expensive part and that once it is formed the ongoing costs are minimal. In reality, incorporation is usually the cheapest stage. The real cost of running a company comes from the ongoing legal, tax, and administrative responsibilities that exist every year, whether the company is busy, quiet, or even dormant.

I regularly speak to directors who are surprised by the true cost of compliance, not because the costs are unreasonable, but because they were never clearly explained at the start. Others underestimate how these costs grow as a business becomes more complex, hires staff, registers for VAT, or seeks finance.

In this article, I am going to break down the real cost of running a limited company in the UK. I will explain the mandatory costs, the common optional costs, and the variable costs that depend on how your business operates. I will also highlight where directors often overspend, where they cut corners at their own risk, and how to budget sensibly for running a company year after year.

The difference between fixed and variable company costs

Before looking at specific figures, it helps to understand that company running costs fall into two broad categories.

Fixed costs are costs you will usually incur every year, regardless of how much trading activity takes place.

Variable costs depend on factors such as turnover, staff numbers, complexity, and growth plans.

Many directors focus on visible fixed costs and forget to plan for variable costs, which is where budgets often get stretched.

Companies House filing costs

Every limited company must deal with Companies House.

The core Companies House costs are relatively modest, but they are unavoidable.

These include:

• Confirmation statement filing fee
• Potential late filing penalties for accounts
• Fees for certain changes, such as name changes

The confirmation statement fee is payable every year, even if the company is dormant and nothing has changed.

While the amounts involved are small, failing to deal with Companies House filings can lead to serious consequences such as strike off, which is why I always treat these costs as essential rather than optional.

Accountancy and bookkeeping costs

For most companies, accountancy fees are the largest single running cost outside of tax itself.

These costs vary widely depending on the level of service required, but they usually include some or all of the following:

• Preparation of annual statutory accounts
• Corporation Tax return preparation
• Ongoing bookkeeping support
• Year end planning and advice

A very small company with simple records may pay relatively modest fees. As complexity increases, so do costs.

Factors that push accountancy costs up include:

• High transaction volumes
• Poor or incomplete records
• VAT registration
• Payroll
• Director loan complexity

Trying to minimise accountancy costs by doing everything yourself can work for some people, but I often see it result in higher costs later when mistakes need to be corrected.

Bookkeeping software and systems

Most companies now use accounting software.

Typical costs include:

• Monthly or annual software subscriptions
• Add ons for invoicing, expenses, or reporting
• Support or training costs

While software costs are usually not huge individually, they add up over time and should be included in running cost calculations.

Good systems often reduce professional fees by keeping records clean, which is why I usually view software as a cost saving tool rather than an extra expense.

Corporation Tax and planning for it

Corporation Tax is not a running cost in the same way as fees or subscriptions, but planning for it is essential.

A company pays Corporation Tax on its profits, and this tax must be paid even if profits are left in the business.

The cost here is not just the tax itself, but the cash flow impact of paying it on time.

I advise directors to treat Corporation Tax as a regular outgoing by setting aside funds monthly rather than viewing it as a once a year surprise.

Corporation Tax is administered by HM Revenue and Customs, and late payment results in interest and potential enforcement action.

Payroll and PAYE costs

If a company pays salaries, even just to a director, payroll costs need to be factored in.

These include:

• Payroll software or bureau fees
• Employer National Insurance
• Pension contributions under auto enrolment
• Time spent managing payroll

Auto enrolment alone has introduced costs and complexity that many new directors do not anticipate, even where contributions are minimal.

Payroll errors are one of the most common causes of HMRC issues, which is why many directors choose to outsource this function.

VAT compliance costs

VAT registration significantly increases the cost of running a company.

Once VAT registered, companies usually incur:

• More complex bookkeeping
• VAT return preparation costs
• Additional software requirements
• Advisory costs around VAT treatment

Even if VAT does not increase the tax burden itself, it almost always increases administrative cost.

I regularly advise clients to factor in compliance cost as well as tax impact when deciding whether or when to register for VAT.

Banking and finance costs

Company banking is another area that often gets overlooked.

Costs can include:

• Monthly bank account fees
• Transaction charges
• Foreign currency fees
• Card processing fees

If the company uses finance, additional costs may include:

• Loan interest
• Arrangement fees
• Asset finance charges

While these costs vary by provider and usage, they form part of the true cost of operating a company.

Insurance costs

Most companies need some form of insurance.

Common types include:

• Employers’ liability insurance
• Public liability insurance
• Professional indemnity insurance
• Directors’ and officers’ insurance

Insurance costs vary widely depending on industry and risk exposure, but they are a necessary part of protecting the company and its directors.

Running without appropriate insurance is a false economy that can prove extremely expensive if something goes wrong.

Office and operational costs

Operational costs depend heavily on how and where the business operates.

These can include:

• Office rent or serviced office fees
• Utilities and internet
• Phone systems
• Equipment and maintenance

Even home based companies often incur some level of operational cost that should be allocated to the business properly.

Compliance and legal costs

As a company grows, legal and compliance costs often increase.

These might include:

• Legal advice on contracts
• Shareholder agreements
• Data protection compliance
• Employment law advice

These costs are often irregular rather than monthly, which is why they are frequently underestimated.

I usually advise clients to keep a contingency budget for professional advice rather than assuming no legal costs will arise.

Costs of taking money out of the company

While not always thought of as a running cost, the cost of extracting money from a company is part of the overall picture.

This includes:

• Employer costs on salaries
• Personal tax on dividends
• Pension contribution planning

The structure chosen for remuneration affects both company and personal finances and should be reviewed regularly.

Costs for dormant or low activity companies

Even companies that do very little still have running costs.

Dormant companies usually still incur:

• Confirmation statement filing fees
• Accountancy costs for dormant accounts
• Time spent on compliance

This is why I often caution against setting up companies “just in case”, as they still generate ongoing obligations and cost.

Hidden and indirect costs

Some of the most significant costs of running a company are indirect.

These include:

• Time spent on administration
• Stress and distraction from core work
• Cost of fixing mistakes
• Penalties for late filings

While harder to quantify, these costs are very real and often exceed visible fees.

Common areas where directors underestimate cost

Based on my experience, the most commonly underestimated costs are:

• Accountancy and advisory time
• VAT compliance
• Payroll administration
• Auto enrolment pensions
• Time spent managing compliance

Being realistic about these from the start avoids frustration later.

Areas where cutting costs can backfire

While controlling costs is sensible, there are areas where cutting too far often causes problems.

These include:

• Skipping professional advice
• Ignoring bookkeeping quality
• Delaying tax payments
• Running without insurance

The cost of rectifying these issues is almost always higher than the cost of doing things properly in the first place.

Budgeting sensibly for company running costs

In my professional opinion, the best approach is to budget conservatively.

I usually suggest:

• Listing all mandatory costs first
• Adding realistic estimates for variable costs
• Including a contingency for advice and compliance
• Reviewing costs annually as the business changes

Running a company is not just about maximising profit, it is about maintaining compliance and stability.

How costs change as a company grows

As turnover increases, costs do not rise in a straight line.

Some costs remain flat, while others increase sharply at certain thresholds, such as:

• VAT registration
• Hiring staff
• Moving premises
• Seeking finance

Planning for these step changes helps avoid cash flow pressure.

Is running a company worth the cost

For many people, the benefits of a limited company outweigh the costs.

These benefits include:

• Limited liability
• Credibility
• Tax planning flexibility
• Ability to grow and scale

However, it is not the cheapest structure to run, and it is not right for everyone.

Understanding the true cost allows you to make an informed decision rather than relying on assumptions.

Final thoughts

The cost of running a company in the UK is made up of many small and medium sized costs rather than one large expense. Some are unavoidable, some are optional, and some depend entirely on how the business operates.

In my experience, the directors who feel most in control are those who understand these costs upfront, budget for them realistically, and review them regularly as the business evolves.

A limited company can be a powerful and flexible structure, but it comes with responsibilities and ongoing costs. Knowing what those costs really are is essential to running the company confidently and sustainably.

You may also find our guidance on limited company expenses list and what are allowable and disallowable expenses for limited companies helpful when exploring related limited company questions. For a broader overview of running and managing a company, you can visit our limited company hub.