Legal update: HMRC proposes changes to the basis periods for income tax

Published: Thursday 22 July 2021

The first thing to note is that if your law firm is a partnership/LLP with a 31 March or 5 April accounting date, or if it is a limited company, then you can ignore this article!

For everyone else, you may be interested to learn that HMRC has recently opened a consultation on changing the Income Tax basis period for self-employed individuals and partnerships/LLPs.  

So, what is this all about?

At present, individuals and partnerships can choose whichever accounting date (financial year end) suits them best.  31 March is a very popular date for law firms, but many have opted for 30 April, 30 June, 30 September, and so on.

The choice of accounting date makes a big difference to when the tax on profits earned  is paid, as partners currently pay tax on their profit share for the accounting period ending in any tax year.  For example, for a firm with a 30 April accounting date, its basis period in the 2021/22 tax year (i.e. the current tax year) is the accounting period ending in that 12-month window, i.e. the year ended 30 April 2021.

Contrast this with a firm with a 31 March year end – its basis period for the 2021/22 tax year is the year ending 31 March 2022.  So, you can see that partners in a firm with a 31 March year end pay their tax much sooner than partners in a firm with a 30 April year end.

This is not the end of the story though.  Incoming partners in a firm with an accounting date other than 31 March/5 April are subject to fairly complicated opening year rules, which mean that in the first couple of years of becoming a partner, some profits will be taxed twice, in different tax years.  The profits that are taxed twice are known as “overlap profits”, are a fixed amount, and relief for them is usually given when the partner retires, if the firm incorporates to a limited company, or if it changes its accounting date closer to the following 31 March.

HMRC is proposing that all self-employed individuals and partners will in future be taxed on a tax year basis, rather than an accounting year basis.  In essence, this means that individuals will pay tax on profits arising in each tax year, regardless of the firm’s accounting date.  

This seems sensible, but what does it mean?

Under the proposals, the 2022/23 tax year (i.e. the one commencing 6 April 2022) will be a transition year, in which basis periods will be aligned with the tax year end, and relief will be given for all overlap profits.

From 2023/24 onwards, the new regime will be in place.

Taking a firm with a 30 April accounting date, the partners in that firm will be taxed on the following in 2022/23:

  • Profits for the year ending 30 April 2022  
  • Profits for the 11 months ending 5 April 2023
  • Less overlap profits 

In the 2023/24 tax year, partners will be taxed on their profits arising in the year ending 5 April 2024, i.e.

  • 1/12th of the profit from the accounting year ended 30 April 2023
  • 11/12ths of the profit from the accounting year ending 30 April 2024

And so on.

In situations where the overlap profits being deducted are higher than the profits for the 11 months ending 5 April 2023, this will result in partners’ tax bills for 2022/23 being lower than they would otherwise have been.  However, given that overlap profits for many individuals will date back years and years, to the time when they first became partners, the opposite is likely to be true, resulting in an acceleration of tax payments.

In their proposal, HMRC recognise that this is a possibility, and have indicated that consideration is being given to allowing individuals to spread any additional tax over a period of up to five years.

What happens if a firm has an accounting date later in a year, such as 31 December?

This is where life starts to get a little complicated, as partners’ tax returns will need to report the following:

  • Nine months profit from the accounting period ending in the tax year (April to December)
  • Three months profit from the accounting period ending in the following tax year (January to March)

The likelihood is that the accounts showing the latter figure will not have even been started before the tax return is due for submission (there is no mention of a move away from the current 31 January), and therefore partners will need to include their best estimate on the return.  The likelihood is that this will then need to be amended once the accounts have been prepared and finalised.  

What will this mean in practice?

If the proposals go through, the following seem fairly likely:

  1. Firms will be tempted to change their accounting date to 31 March or 5 April, to save having to prepare estimates every year.  This could make it difficult for partners in those firms to work out how much they can pay into their pensions, as they won’t know what their taxable income will be before 5 April each year.
  2. Partners that have not saved for their tax as they go along may struggle to find the cash to pay the accelerated tax, even if the Government does allow spreading.
  3. We will end up in a situation where partners will need to estimate part of their profit share every year, only to then update the estimates for actual figures once accounts have been finalised.  This is likely to mean that tax is over or underpaid for a time.

How likely is it that this will happen?

Many have been surprised at how quickly the proposals have been issued, following a recent review of the Tax Administration Framework.  It is also a little unusual that HMRC has issued draft tax legislation as part of the consultation, rather than waiting until responses to the consultation have been received.

This, and the fact that HMRC is pressing ahead with plans to introduce Making Tax Digital for Income Tax Self Assessment (MTD ITSA) from April 2023, which will require self-employed individuals to report income on a ‘real-time basis’, all suggest that the proposals will be adopted.

Finally, we all know that the Government is looking for ways to help pay for all of the Covid support over the last 18 months, and this tax windfall would be very helpful, all without having to increase tax rates.

What should firms do (or not) to prepare for this?

It is surprising how many self-employed individuals we come across that do not have details of their overlap profit figure, given that pretty much everyone with an accounting date that is not 31 March or 5 April should have one.  The overlap profit figure should be reported on the personal tax return each year, but if it is not, then we would recommend that individuals contact their accountant or tax adviser as soon as possible, just to make sure they have it.

For our clients, we are in the process of double-checking that overlap figures are held on record.

If the overlap profit figure cannot be located, then contact HMRC, but our experience is that HMRC’s records may not go back far enough if someone has been self-employed for many years, which could mean that the overlap (and resulting tax relief) are lost.

Finally, firms might be tempted to change their accounting date to 31 March before 2022/23, but this is unlikely to be a good idea, as the change could result in an accelerated tax liability, which could not then be spread over five years.

Content image: /uploads/team/unknown.jpg Jon Cartwright
Jon Cartwright
Partner
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Content image: /uploads/team/unknown.jpg Patricia Kinahan
Patricia Kinahan
Partner, Legal
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Content image: /uploads/team/unknown.jpg Andy Harris
Andy Harris
Partner, Legal
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