Income Tax, NICs and Capital Gains Tax – Self-Assessment

31 Jan in tax year

Following 31 July

Following 31 Jan

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Normally 50% of previous year’s income tax (less tax deducted at source) and class 4 NICs

Balance of income tax and class 4 NICs, class 2 NICs and balance of CGT

Inheritance Tax

On death:

Normally 6 months after end of month of death

Lifetime transfer 6 April–30 September:

30 April in following year

Lifetime transfer 1 October–5 April:

6 months after month of transfer

Corporation Tax – Self-Assessment

• Profits under £1,500,000: 9 months + 1 day after end of accounting period

• Profits £1,500,000 or over: normally payable in 7th, 10th, 13th and 16th months after start of the accounting period
• Profits £20,000,000 or over: normally payable in 3rd, 6th, 9th and 12th months after start of the accounting period

• Growing companies: no instalments where profits are £10,000,000 or less and the company was not a large company for the previous year