# Finance Act 1998, Paragraph 8

Extent: E+W+S+N.I.

(1) The amount of tax payable for an accounting period is calculated as follows.
First step
Calculate the corporation tax chargeable on the company’s profits:
1Take the amount of the company’s profits for that period on which corporation tax is chargeable (see section 4(1) and (2) of the Corporation Tax Act 2010).
2Apply the rate or rates of corporation tax applicable to the company (other than the restitution payments rate).
Second step
Then give effect to any reliefs or set-offs available against corporation tax chargeable on profits:
1Any reduction under Part 3A or Chapter 3A of Part 8 of the Corporation Tax Act 2010 (marginal relief for companies with small profits).
1AAny relief under Part V of Schedule 15 to the Finance Act 2000 (corporate venturing scheme: investment relief).
1BAny relief under Part 7 of the Corporation Tax Act 2010 (community investment tax relief).
2Any double taxation relief under under sections 2 and 6 of TIOPA 2010 or under section 18(1)(b) and (2) of that Act.
3Any set off for advance corporation tax under section 239 of the Taxes Act 1988 or under regulations made under section 32 of this Act.
Third step
Then add any amounts assessable or chargeable as if they were corporation tax (reduced by any reliefs specific to those amounts):
1Any amount due under section 455 or 464A of the Corporation Tax Act 2010 (tax on a loan, advance or benefit to a participator).
1ZA Any sum chargeable under section 269DA of that Act (surcharge on banking companies).
1AAny sum chargeable under section 330(1) of that Act (supplementary charge in respect of ring fence trades).
2 Any sum charged at step 5 in section 371BC(1) of the Taxation (International and Other Provisions) Act 2010 (controlled foreign companies).
3 Any amount of the bank levy chargeable by virtue of paragraph 50 or 51 of Schedule 19 to the Finance Act 2011 (the bank levy).
4 Any amount of residential property developer tax chargeable by virtue of section 33 of the Finance Act 2022.
5 Any amount chargeable by virtue of section 1 of the Energy (Oil and Gas) Profits Levy Act 2022.
Fourth step
Then deduct any amounts to be set off against the company’s overall tax liability for that period:
1Any amount to be set off under section 967 or 968 of the Corporation Tax Act 2010 (income tax borne by deduction).
2Any amount to be set off under section 246N or 246Q of the Taxes Act 1988 (advance corporation tax paid in respect of foreign income dividend).
Fifth step
Calculate the corporation tax chargeable on any profits of the company that are charged as restitution interest.
1Find the amount in respect of which the company is chargeable for the period under the charge to corporation tax on income under Part 8C of CTA 2010.
2Apply the restitution payments rate in accordance with section 357YK(1) of that Act.
The amount of tax payable for the accounting period is the sum of the amounts resulting from the first to fourth steps and this step.
(1A) Sub-paragraph (1B) applies if an amount of the bank levy chargeable by virtue of paragraph 50 or 51 of Schedule 19 to the Finance Act 2011 (the bank levy) is added at the third step.
(1B) Any deductions made at the fourth step are to be treated as made from all other amounts before being made from the amount of the bank levy.
(2) Except as otherwise provided, references in this Schedule to the amount of tax payable by a company for an accounting period are to the amount shown in the company’s self-assessment as the amount payable.

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Source: https://www.legislation.gov.uk/ukpga/1998/36/schedule/18/paragraph/8 (the official version)
Page: https://openlegislation.uk/finance-act-1998/schedule-18/paragraph-8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.