Introduction
Every day, millions of businesses sell goods and services to customers. At first glance, it might appear that all of this money belongs to the business.
A supermarket sells groceries.
A construction company builds houses.
A software company develops computer programs.
A local café serves coffee and meals.
Many people assume that all the money these businesses receive belongs to them.
In reality, it does not.
Before a company can decide what to do with its earnings, it must first pay a wide range of costs, including wages, rent, energy bills, raw materials, insurance and many other expenses. Only after these costs have been paid can the company calculate whether it has made a profit.
If it has, it may have to pay Corporation Tax.
Corporation Tax is one of the government’s major sources of revenue and is paid by many companies on their taxable profits. Although it raises much less money than Income Tax or VAT, it still contributes billions of pounds each year towards funding public services.
In the previous chapters, we explored the taxes that individuals encounter most often. We learned how Income Tax and National Insurance are linked to earnings and how VAT is charged when people spend money.
This chapter turns our attention to businesses.
It explains what Corporation Tax is, who pays it, how profits are calculated and why governments tax company profits in the first place.
By the end of this chapter, you should understand why companies pay Corporation Tax, why profits are different from sales and how Corporation Tax fits into the UK’s wider system of public finance.
The One Big Idea
Corporation Tax is a tax on the taxable profits of many companies.
It allows businesses to contribute towards public finances while keeping the remaining profits to invest, expand, reward their owners and prepare for the future.
Everything else about Corporation Tax follows from one simple principle: it is based on profits, not sales.
What Is Corporation Tax?
Corporation Tax is a tax that many companies pay on their taxable profits.
Unlike Income Tax, which is paid by individuals on their income, Corporation Tax is paid by companies that make a profit.
This distinction is important.
A company can sell millions of pounds’ worth of goods each year but still make little or no profit if its costs are equally high.
Corporation Tax is therefore not charged on the total amount of money a business receives from customers.
Instead, it is charged on the profit that remains after allowable business expenses have been taken into account.
The government sets the rules that determine which companies must pay Corporation Tax and how taxable profits are calculated. These rules can change over time through the annual Budget, but the underlying principle remains the same:
Companies pay Corporation Tax on their taxable profits, not on their turnover or sales.
What Is Profit?
To understand Corporation Tax, we first need to understand what economists and accountants mean by profit.
Profit is the money a business has left after paying its costs.
Imagine a small independent café.
During one month it receives £50,000 from customers buying coffee, sandwiches and cakes.
This is known as its sales revenue or turnover.
However, the café cannot keep all of that money.
It still has to pay for:
- coffee beans and food ingredients;
- staff wages;
- rent;
- electricity and water;
- insurance;
- equipment;
- cleaning; and
- many other everyday expenses.
Suppose these costs total £42,000.
The café has:
£50,000 income
minus
£42,000 costs
=
£8,000 profit
It is this profit, rather than the original £50,000 of sales, that forms the starting point for calculating Corporation Tax.
This distinction between sales and profit is one of the most important ideas in business and economics.
A company may have very high sales but very low profits if its costs are also high.
Conversely, a smaller business with modest sales may still be highly profitable if it controls its costs effectively.
This is why two businesses with identical sales can pay very different amounts of Corporation Tax.
For this reason, economists, investors and governments often pay much closer attention to profits than to sales alone.
Why Do Governments Tax Company Profits?
As we have seen throughout this section, governments need revenue to fund public services such as healthcare, education, policing, transport and defence.
Individuals contribute through taxes such as Income Tax, National Insurance and VAT.
Businesses also contribute.
Governments tax company profits because businesses benefit from many of the same public services and institutions that individuals rely upon.
For example, companies benefit from:
- roads, railways and ports that allow goods to be transported;
- an educated workforce trained through schools, colleges and universities;
- a legal system that protects contracts and property rights;
- police and emergency services that help maintain a stable society;
- public infrastructure such as energy networks and communications; and
- a stable economy in which customers are able to buy their goods and services.
Corporation Tax is one way in which companies contribute towards the cost of maintaining these shared systems.
Like all taxes, it forms part of the wider balance between raising enough revenue to fund public services while supporting a healthy and productive economy.
In the next section, we’ll look at what companies do with the profits they earn and where Corporation Tax fits into those decisions.
What Do Companies Do With Their Profits?
Once a company has paid its everyday costs and calculated its profit, it must decide what to do with the money that remains.
Many people assume that profit simply becomes extra income for the owners of the business.
Sometimes this happens, but very often it does not.
Companies have several possible uses for their profits.
One option is to reinvest the money back into the business.
For example, a company might:
- buy new machinery;
- open additional shops or offices;
- develop new products;
- invest in research and development;
- improve technology;
- employ more staff; or
- build up cash reserves for future uncertainty.
Reinvesting profits can help a business grow, become more productive and compete more effectively.
Another option is to reward the people who own the company.
Some companies distribute part of their profits to shareholders in the form of dividends. Others may retain most of their profits within the business to finance future expansion.
Before profits can be distributed or reinvested, however, companies that are liable for Corporation Tax must first pay the tax that is due on their taxable profits.
Corporation Tax is therefore one of several claims on a company’s profits rather than the only use of those profits.
Understanding this helps explain why profitable businesses do not simply hand all of their profits to shareholders.
Instead, they must balance taxation, investment, financial security and rewarding investors.
How Does Corporation Tax Differ from Income Tax?
Although both raise money for the government, Corporation Tax and Income Tax apply to different taxpayers.
Income Tax is paid by individuals on many forms of personal income, such as wages, pensions and some investment income.
Corporation Tax, by contrast, is paid by companies on their taxable profits.
The company and the individual are treated as separate legal entities.
This distinction has important consequences.
Suppose a company makes a profit.
The company may first pay Corporation Tax on those profits.
If some of the remaining profit is then paid to shareholders as dividends, those shareholders may also have to pay tax on the income they personally receive, depending on their circumstances and the tax rules in force at the time.
Although both taxes may relate to the same underlying business activity, they apply to different taxpayers and at different stages.
This is why Corporation Tax should not be thought of as simply another version of Income Tax.
Each tax has its own purpose within the wider system of public finance.
Do All Businesses Pay Corporation Tax?
A common misunderstanding is that every business pays Corporation Tax.
In reality, this depends on how the business is organised.
Many larger businesses operate as limited companies.
These companies are separate legal entities from the people who own them and generally pay Corporation Tax on their taxable profits.
However, many smaller businesses are organised differently.
For example, a sole trader owns and runs the business personally.
From a legal and tax perspective, the owner and the business are largely treated as the same person.
Instead of paying Corporation Tax, sole traders usually pay Income Tax and National Insurance on their business profits.
Similarly, many partnerships do not pay Corporation Tax themselves.
Instead, the profits are normally shared between the partners, who each pay tax on their share of the income according to the rules that apply to individuals.
This means that Corporation Tax is not a tax on all businesses.
It is a tax that applies primarily to companies.
Understanding this distinction also explains why two businesses carrying out very similar work may pay tax in different ways depending on their legal structure.
How Is Corporation Tax Collected?
Unlike employees, whose Income Tax is often deducted automatically through Pay As You Earn (PAYE), companies are responsible for calculating and paying their own Corporation Tax.
Companies keep financial records throughout the year showing:
- their income;
- their business expenses;
- their profits; and
- any adjustments required under tax law.
Using this information, they calculate their taxable profits and submit the necessary information to HM Revenue & Customs (HMRC).
If Corporation Tax is due, the company pays it directly to HMRC.
Although accountants and tax specialists often help businesses meet these obligations, the underlying principle is straightforward.
Companies are responsible for reporting their profits accurately and paying the Corporation Tax that they owe.
As with many other parts of the tax system, the detailed rules can be complex.
However, the central idea remains simple:
Companies calculate their taxable profits and pay Corporation Tax on those profits according to the rules set by the government.
Why Is Corporation Tax an Important Source of Revenue?
Corporation Tax raises billions of pounds each year for the UK government.
Although it usually raises less revenue than Income Tax or VAT, it remains one of the country’s major taxes.
It is particularly important because it ensures that profitable companies contribute directly to public finances alongside individuals and consumers.
Corporation Tax also reflects an important principle of the UK’s tax system.
Government revenue is raised from several different parts of the economy.
Individuals contribute through taxes on earnings.
Consumers contribute through taxes on spending.
Companies contribute through taxes on profits.
By spreading taxation across different sources of economic activity, governments reduce their reliance on any single tax and create a broader and more resilient system of public finance.
As we shall see later in Fair Society, the amount of Corporation Tax collected depends not only on tax rates but also on the health of the wider economy.
When businesses are growing and making healthy profits, Corporation Tax revenues often increase.
During economic downturns, however, company profits may fall, reducing the amount of Corporation Tax collected by the government.
This relationship between business activity and government revenue provides an important bridge to the next section of our learning journey, where we begin to explore how the economy itself creates the incomes, spending and profits that governments are able to tax.
Why Do People Disagree About Corporation Tax?
Like all major taxes, Corporation Tax is the subject of ongoing public debate.
Almost everyone agrees that governments need businesses to contribute towards funding public services.
Where opinions differ is over how much Corporation Tax companies should pay and what effects different tax rates have on the wider economy.
Some people argue that profitable companies benefit greatly from the public services and infrastructure provided by society.
Businesses rely on:
- transport networks;
- educated workers;
- reliable energy supplies;
- the legal system;
- public institutions; and
- economic stability.
From this perspective, Corporation Tax is a reasonable way for successful companies to contribute towards maintaining the conditions that allow them to operate and grow.
Others place greater emphasis on the economic effects of Corporation Tax.
They argue that if tax rates become too high, companies may invest less, expand more slowly or choose to locate future investment in countries with lower business taxes.
Supporters of lower Corporation Tax rates often argue that encouraging investment can lead to higher productivity, more jobs and stronger long-term economic growth.
Governments therefore face a balancing act.
They want to raise enough revenue to fund public services while also maintaining an attractive environment for businesses to invest, innovate and create employment.
Exactly where that balance should lie is a matter of economic judgement and political debate.
The purpose of this chapter is not to decide which approach is best, but to explain why reasonable people can disagree and why Corporation Tax remains an important part of discussions about economic policy.
Corporation Tax and the Economy
Corporation Tax illustrates an important idea that we will explore repeatedly throughout Fair Society:
Governments can only tax economic activity that already exists.
Before Corporation Tax can be collected:
- businesses must produce goods or services;
- customers must buy them;
- companies must earn revenue;
- costs must be paid; and
- profits must be generated.
Only then can Corporation Tax be charged.
This means that government revenue depends partly on the health of the wider economy.
When businesses are expanding, investment is increasing and company profits are growing, Corporation Tax receipts often rise.
During recessions or periods of weak economic growth, profits may fall sharply.
As a result, governments often collect less Corporation Tax without changing tax rates at all.
This relationship works in both directions.
Corporation Tax provides revenue for public services, but the strength of the economy determines how much revenue can be raised.
Understanding this connection helps explain why governments pay close attention to economic growth as well as tax policy.
In the next section of Fair Society, we will begin exploring the economy itself, starting with one of its most important measures: Gross Domestic Product (GDP).
Why Corporation Tax Matters
Corporation Tax may seem less relevant to everyday life than Income Tax or VAT because most people never pay it directly.
However, it still affects society in many important ways.
It provides billions of pounds of government revenue each year.
It influences business investment and economic decision-making.
It plays a role in debates about economic competitiveness, productivity and growth.
It also reminds us that businesses are an important part of the wider economy.
Companies employ millions of people, produce the goods and services we buy, invest in new technologies and contribute to government revenue through a variety of taxes.
Corporation Tax is just one of those contributions, but it helps demonstrate an important principle that runs throughout this section of Fair Society:
A modern tax system asks different parts of society to contribute in different ways.
Individuals contribute through taxes on earnings.
Consumers contribute through taxes on spending.
Businesses contribute through taxes on profits.
Together, these different sources of revenue help fund the public services and institutions on which both people and businesses depend.
Common Misunderstandings
Corporation Tax is often discussed in the news, but it is also widely misunderstood.
Here are some of the most common misconceptions.
“Corporation Tax Is Paid on Sales”
This is one of the biggest misunderstandings.
Corporation Tax is not charged on a company’s sales or turnover.
Instead, it is charged on its taxable profits after allowable business expenses have been taken into account.
A company can have very high sales but make little or no profit.
In that case, it may pay little or no Corporation Tax.
“All Businesses Pay Corporation Tax”
Not every business pays Corporation Tax.
Limited companies generally do.
However, sole traders and many partnerships are taxed differently.
Their business profits are usually taxed through the personal tax system rather than through Corporation Tax.
The type of business structure therefore affects how profits are taxed.
“Companies Only Pay Corporation Tax”
Corporation Tax is only one of several taxes that businesses may encounter.
Depending on their activities, companies may also deal with:
- employer National Insurance contributions;
- VAT administration;
- Business Rates;
- Stamp Taxes;
- fuel duties; and
- various other taxes and charges.
Corporation Tax is therefore just one part of the wider tax system affecting businesses.
“Lower Corporation Tax Always Means Less Government Revenue”
It might seem obvious that reducing Corporation Tax rates would always reduce government revenue.
In practice, the relationship is more complicated.
Lower tax rates may encourage greater investment and higher profits, potentially increasing the amount of taxable profit in the economy.
On the other hand, lower rates also reduce the amount of tax collected on each pound of profit.
Exactly how these effects balance depends on many factors, including business behaviour, economic conditions and international competition.
This is one reason why Corporation Tax remains an active area of economic debate.
Understanding these trade-offs will become easier as we explore economic growth, productivity and investment in the chapters ahead.
“Companies Always Try to Avoid Paying Corporation Tax”
Most companies simply calculate their taxable profits according to the law and pay the tax they owe.
There are debates about tax avoidance and international taxation, but those are separate issues that we’ll encounter later in the curriculum.
Conclusion
Corporation Tax is one of the UK’s principal business taxes.
Rather than taxing the money a company receives from customers, it taxes the taxable profits that remain after allowable business expenses have been taken into account.
Understanding this distinction between sales and profits is the key to understanding how Corporation Tax works.
Throughout this chapter, we have seen that businesses contribute to public finances in several ways.
Companies pay Corporation Tax on their profits, while many also collect VAT on behalf of the government, pay employer National Insurance contributions and meet a range of other tax obligations.
This illustrates an important theme that runs throughout Fair Society.
A modern tax system spreads responsibility across different parts of the economy.
Individuals contribute through taxes on earnings.
Consumers contribute through taxes on spending.
Businesses contribute through taxes on profits.
Each type of tax has its own purpose, strengths and trade-offs, but together they provide the revenue needed to fund public services and support the functioning of society.
Corporation Tax also reminds us that government revenue ultimately depends on economic activity.
Before companies can pay Corporation Tax, they must first produce goods or services, attract customers, earn revenue and generate profits.
In other words, a healthy economy creates the incomes, spending and profits that governments are then able to tax.
This idea provides a natural bridge to the next stage of our learning journey.
So far, we have explored how governments raise money.
Next, we begin exploring where that money comes from in the first place—the economy itself.
Continue Learning
You now understand how Corporation Tax works and why it is an important part of the UK’s tax system.
You have learned:
- what Corporation Tax is;
- why it is based on profits rather than sales;
- how profits differ from turnover;
- why governments tax company profits;
- how Corporation Tax differs from Income Tax;
- why different business structures are taxed differently; and
- why Corporation Tax remains one of the most debated areas of economic policy.
This chapter completes our introduction to the UK’s principal taxes.
Together, Income Tax, National Insurance, VAT and Corporation Tax explain how individuals, consumers and businesses all contribute to funding public services and supporting the wider economy.
The next section begins a new stage of Fair Society.
So far, we have focused on how governments raise revenue.
The next question is just as important:
Where does that revenue come from in the first place?
Before governments can collect taxes, people must earn incomes, businesses must make profits and consumers must buy goods and services. Together, all of this activity forms the economy.
Our next chapter, What Is GDP?, introduces one of the most important ideas in economics: how we measure the size of an economy and why economic growth matters for living standards, employment and government finances.
Understanding GDP marks the beginning of the next stage of the Fair Society learning journey, where we move from public finance to understanding the economy itself.