A guide to the various corporation tax rates over the past few years and an overview of the previous marginal relief calculation.
A freeview 'At a glance' guide.
Company tax rates
2023-24 |
|
2015/16 to 2016/17 | 2014/15 | 2013/14 | 2012/13 | 2011/12 | 2010/11 | |||
Rate |
Profits bands £ |
Effective % |
Profit bands £ |
Effective % | Effective % | Effective % | Effective % | Effective % | Effective % | Effective % |
Small | 0-50,000 | 19% | 0 - 300,000 | 19 | 20 | 20 | 20 | 20 | 20 | 21 |
Marginal | 50,001-250,000 | 300,001 - 1,500,000 | 19 | 20 | 21.25 | 23.75 | 25 | 27.5 | 29.75 | |
Main | >250,000 | 25% | >1,500,000 | 19 | 20 | 21 | 23 | 24 | 26 | 28 |
Fraction | 3/200 | n/a | n/a | 1/400th | 3/400ths | 1/100th | 3/200ths | 7/400ths |
Notes
The company tax year starts on 1 April.
The main rate of company tax for all non-ring fence profits is 19% for Financial Years 2017-2022.
From 1 April 2023:
From 1 April 2023: the marginal relief calcluation
Marginal relief is given by reducing charge to Corporation Tax (25%) by the following:
(U-A) x N/A x F
F = Standard marginal relief fraction (3/200)
U = Upper limit (£250,000*)
A = Augmented profits
N = Taxable total profits
Augmented profits are "taxable total profits" and any exempt distributions received companies that are not 51% subsidaries or held through a consortium.
*Upper and lower limits are reduced where:
Up to 31 March 2015: the marginal relief calculation
Marginal relief is given by:
(Upper limit – profits) x basic profits x fraction
profits
Upper and lower limits are reduced where:
Alternatively, you can calculate Corporation Tax on slices of profit using marginal rates:
Basic example
For a company with a 31st March 2012 year-end and profits of £500,000 and no associated companies and no franked investment income, the marginal relief calculation is as follows:
Tax @ 26% on £500,000 = 130,000
Less:
Marginal relief
(1,500,000 – 500,000) x 3/200 = (15,000)
Tax due = 115,000
Alternatively, you can do this calculation as follows:
First 300,000 @ 20% = 60,000
Next £200,000 @ 27.5% = 55,000
Tax due = 115,000
What is the marginal rate?
If small company’s rate is 20% and the main rate is 26%
300,000 x 20% = 60,000
1500,000 x 26% = 390,000
1200,000 x X% = 330,000
330,000/1,200,000 =27.5% marginal rate
If small company’s rate is 20% and the main rate is 25%
300,000 x 20% = 60,000
1500,000 x 24% = 360,000
1200,000 x X% = 300,000
300,000/1,200,000 =25% marginal rate
What is the marginal rate fraction?
The difference between the main rate and the marginal rate expressed as a fraction.
So 29.75% - 28% = 1.75% = 7/400
28.75% - 27% = 1.75% = 7/400
27.5% - 26% = 1.5% = 3/200
26.25% - 25% = 1.25% = 1/80
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