Corporation Tax Calculator

Jordan Macey

March 16, 2021

iPhone about to calculate corporation tax



Corporation tax basics: What you need to know

Corporation Tax refers to tax you pay on money your company or association makes from trading profits, investments and chargeable gains.

It is calculated and paid on an annual basis, based on your ‘accounting period’ for corporation tax. This is typically the same as your company’s financial year. Limited companies, foreign companies with a UK branch or office, clubs, co-operatives and unincorporated associations are required to pay corporation tax on profits.

When is corporation tax due?

Keep in mind that unlike most taxes, the deadline for paying your corporation tax bill is earlier than the deadline for your tax return.

Your corporation tax bill is nine months and one day following the end of your accounting period. If the end of your accounting period falls on 31 March 2019, you’ll need to make your payment by 1 January 2020. The payment is made once a year if your profits fall below £1.5 million. Payment is made in instalments for businesses with profits exceeding £1.5 million.


What is the current corporation tax rate?

The current rate is 19% for the 2019/20 tax year. For the tax year starting 1 April 2020, the rate will be reduced to 18%.


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