It is always attractive to the political classes to impose taxes on business so that people can benefit from the spending this makes possible. Corporation Tax is one of these whose name suggests that it is paid by corporations. Many people suppose that this involves taking money from companies and transferring it via government into services for ordinary people. They suppose that corporations just shrug and accept the loss in profits this involves. This is a naïve myth. The tax levied by government is part of the price that people, not companies, pay. When you buy beer the price of your pint includes the tax the brewer has to pay to government. When you buy whisky it is even more, about 80% of the nominal price. The same is true for petrol and other fuels. VAT is included in what you are charged for goods and services.
The point is that Corporation Tax is paid by people, not by corporations. The tax that companies are charged forms part of their costs, and is reflected in the costs of producing their goods and services. Studies show that about three-fifths of the impact of Corporation Tax falls on the workers, reducing the wages they could otherwise be paid. Of the remainder, some falls on shareholders by way of reduced dividends, making it harder for the firm to attract capital to create more jobs. Some falls on customers, passed on to them in the form of higher prices, which lower demand for the firm's products.
Corporation tax thus acts to curb economic activity, hits growth, and makes people poorer than they would otherwise have been.
If firms tried to absorb the tax without passing it on in lower wages and increased prices, as some critics suggest they could, they would become less profitable and less attractive to investors, who would in turn respond by investing somewhere else instead.