National Insurance Contributions (NIC) for the self-employed in 2023/24

Self-employed individuals are required to pay Class 2 and Class 4 NICs if their profits exceed £12,570. These NICs are usually collected with the individual’s income tax self-assessment payments.

For 2023/24, Class 2 NICs are calculated at £3.45 per week and Class 4 NICs are calculated at 9% on profits between £12,570 and £50,750, and at 2% on profits over £50,750.

Making Tax Digital (MTD) for Income Tax

Under MTD for Income Tax, businesses will keep digital records and send a quarterly summary of their business income and expenses to HMRC using MTD-compatible software. These requirements will not be phased in until April 2026, starting with sole traders and property landlords with gross income over £50,000. Other individuals subject to Income Tax will follow at a later stage.

Tax Relief for expenditure on plant and machinery

The Annual Investment Allowance (AIA), giving 100% tax relief to unincorporated businesses and companies investing in qualifying plant and machinery, is now permanently set at £1million.

The super-deduction, which gives enhanced 130% relief for new qualifying plant and machinery acquired by companies, will end on 31 March 2023.

As a replacement for the super-deduction, ‘full expensing’ (effectively 100% tax relief, called a ‘First Year Allowance’ (FYA)) will be available to companies incurring expenditure on new qualifying plant and machinery between 1 April 2023 and 31 March 2026. The qualifying criteria is quite broad although there are exclusions, including cars and features integral to a building (for example, heating systems). With regard to ‘integral features’, a smaller 50% FYA will be available. Subsequent disposals of assets on which one of these FYAs has been claimed will trigger a clawback of tax relief at a rate of 100% or 50% of the disposal proceeds, depending on the rate of the original relief. These new FYAs will mainly be of interest to companies that have already fully utilised their £1million AIA.

The separate 100% FYA for electric vehicle charge points remains available for unincorporated businesses and companies until Spring 2025.

Unincorporated businesses and their accounting year-ends

Unincorporated businesses that prepare annual accounts to a date other than 31 March or 5 April will soon need to adopt a new process for how the profits or losses arising in those accounts are reported to HMRC.

At present, ‘basis period’ rules apply that broadly allow annual accounts that end in a tax year to act as the basis of profits or losses arising in that tax year.

This new system starts with transitional rules in the tax year ending on 5 April 2024 (2023/24). Going forwards, actual profits or losses arising in a tax year must be reported to HMRC, but this does not necessarily require a change in accounting year-end.

Unfortunately, this will make it harder for some self-employed individuals to predict their income tax liabilities, but we will be on hand to help you.