Hello, 

This week, we have news of incorrect SA302 tax calculations. We also take a look at a recent First Tier Tribunal (FTT) tax hearing, in which Artificial Intelligence (AI) played a part, but did not help the taxpayer’s appeal.

SME tax news 14

In 2023, we reported the FTT’s decision in Felicity Harber v HMRC. That case was notable because the taxpayer had relied on AI to form a penalty appeal, but unfortunately, the cases it cited were fictitious.

On a similar theme, this week we examine the newly published decision in Bodrul Zzaman v HMRC. Here, the taxpayer relied on AI to prepare his statement of case when appealing a High-Income Child Benefit Charge discovery assessment.

While the case law the AI tool gave was not made up on this occasion, the cases generated did not provide authorities for the arguments made by the taxpayer. 

In response, the FTT judge went on to comment on the use of AI and how to reduce the dangers of relying on AI tools, including using human checks to confirm that assertions a tool generates are accurate.

In other news, the Chartered Institute of Taxation (CIOT) are highlighting errors in some 2024-25 SA302 tax calculations relating to Class 2 National Insurance contributions; something to watch out for.

Do also note that new advisory fuel rates, applying from 1 June 2025, have been published.  

More news, cases, and updates below.  

The Ross Martin Tax Team

Online PRACTICAL tax resources for accountants and tax advisers BY accountants and tax advisers.


Quick News 

Advisory fuel rates from 1 June 2025
HMRC have published new advisory fuel rates for company car drivers that apply from 1 June 2025. 

HMRC issuing incorrect SA302 calculations
The Chartered Institute of Taxation (CIOT) has highlighted issues with HMRC's 2024-25 Self Assessment calculations. Several individuals have reported that Class 2 National Insurance Contributions (NICs) are being incorrectly included on SA302 tax calculations.

Increase in SEIS investments but decreases in other investor reliefs
HMRC have released statistics showing an increase in the number and amount of investments made under the Seed Enterprise Investment Scheme (SEIS). The statistics also show decreases in Enterprise Investment Scheme (EIS) and Venture Capital Trust (VCT) scheme investments. 

One-to-many letters: Tracker
HMRC's latest one-to-many letter is being sent to companies whose financial statements show loans to directors and employees of more than £10,000 each, reminding them of the need to report beneficial loans on forms P11D and P11D(b) by 6 July 2025 for 2024-25.


Tax Cases

AI fails to help taxpayer in HICBC appeal
In Bodrul Zzaman v HMRC [2025] TC09520, the First Tier Tribunal (FTT) found that a taxpayer’s use of Artificial Intelligence (AI) to write his statement of case did not provide grounds to allow his High-Income Child Benefit Charge appeal. The case law cited failed to provide authorities for the arguments made. 

Successful appeal against R&D discovery assessment
In Realbuzz Group Ltd v HMRC [2025] TC09502, the First Tier Tribunal (FTT) allowed an appeal against a discovery assessment raised in respect of a Research & Development (R&D) claim. At the end of the normal enquiry window, the hypothetical HMRC officer should reasonably have been aware of the excessive R&D claim, which resulted in an insufficiency in tax.

ToAA rules applied to rent-free house occupation
In Anne Concepta Moran v HMRC [2025] TC09521, the First Tier Tribunal (FTT) found that a taxpayer was liable to Income Tax under the Transfer of Assets Abroad (ToAA) legislation due to her rent-free occupation of a house settled in an offshore trust by her late husband.

Orthodontic aligners were VAT-exempt
In Align Technology Switzerland GmbH & Anor v HMRC [2025] TC09499, the First Tier Tribunal (FTT) found that orthodontic aligners were VAT-exempt dental prostheses. 


Editor's Choice 

CGT: Rollover Relief: Exchanges of joint interests in land
This guide outlines the form of Capital Gains Tax (CGT) Rollover Relief available for exchanges of joint interests in land.

IHT: Normal Expenditure Out of Income (gifts)
When is normal expenditure out of income exempt for Inheritance Tax (IHT)? How do you claim the exemption?


Guides & Updates 

Self-employed  

Market Gardening: Tax Overview
What is market gardening? What tax rules apply?  

Directors & Companies

Research & Development Tax Reliefs
What is R&D Relief? How does it work? Why does the size of the company matter? What is sub-contracted R&D? How do I write an R&D Report?

Directors: Tax planning toolkit for 2025/26
What tax planning opportunities and strategies are available to directors? What's the optimum way to extract profits in 2025-26? What tax reliefs and tax deductions are handy to consider? This planner looks at a range of director tax issues.  

Employers

Salary sacrifice & optional remuneration schemes (OPRA)
What is a salary sacrifice or optional remuneration arrangement? How is it taxed?

Company cars
Company car tax. How do you work out car benefit? How do you work out car fuel benefit? Are there savings for low-emission vehicles? How do you reduce car benefit? Cars, the tax tribunals and Top Tax Tips.

Private Client & Estate Planning

IHT: Pre-owned Asset Tax (POAT)
What is Pre-owned Asset Tax (POAT)? When does it apply? Are there any exclusions or exemptions? 

Limit (cap) on Income Tax reliefs
What are the limits and restrictions for Income Tax relief? When do they apply?

Overseas & Residence

Foreign Currency Gains
This guide provides a brief overview of the taxation of foreign currency. Are individuals and companies taxed differently? Are there any exemptions? What is not included within the rules? 

Penalties & Compliance

Overpayment Relief
What is Overpayment Relief? When can you claim Overpayment Relief? What are the conditions for a claim for Overpayment Relief? What are the time limits for a claim for Overpayment Relief? 

Grounds for Appeal: HMRC error or flaw
When can an error, mistake or procedural flaw made by HMRC provide a valid ground for making an appeal?

VAT

Land & Property: DIY Housebuilders scheme
It is possible to recover VAT on constructing a new residential dwelling, or dwellings, even where there is no planned sale of the property. This recovery can arise under the special refund scheme for DIY housebuilders. 


Tax Tools & Calculators

Tax tools & calculators
We have a suite of useful tax tools that help agents, business owners and sole traders calculate their taxes. 

Calendar of tax deadlines and new tax measures

This is a freeview 'At a glance' rolling calendar of common recurring tax deadlines, new tax measures and other tax-significant events. 

CPD 

Recent webinars include: 

Need Tax Support?

Virtual Tax Partner© Support
Have a tax query? Need a second option? Open a ticket and ask a question. A team of tax experts with a wide range of expertise: covering direct and indirect tax, as well as accounting, R&D claims, reorganisations and much more.  

Missed the Last Tax Update?

Ross Martin Tax: SME Tax News 22 May 2025

  • Agent Update: May 2025
  • One-to-many letters: Tracker
  • Struck-off solicitor Baxendale-Walker issued with Stop Notice
  • Wealthy tax dodging a bigger problem, says NAO
  • Late tax return filing penalties quashed
  • Mental health unit ‘bedroom wing’ construction was not zero-rated
  • Vitamin drips were medical care for VAT
  • PAYE: Starter checklist new employee 2025-26 NEW
  • Spotlight 63: Property business arrangements involving hybrid partnerships UPDATE
  • Registering for VAT UPDATE ...More 

Subscribe for news, guides, tools & CPD

Subscribe now and unlock the site. Subscriptions begin at £53 (+ VAT) per month. All subscriptions are for a 12-month term. 

What do you get?

  • A comprehensive practical tax database of guides, checklists, briefings and practice notes, and access to all our time-saving calculators and tax tools.
  • 25% discount on Virtual Tax Partner services.
  • Read everything in our comprehensive weekly SME tax news summary. We do the reading, then summarise legislation, HMRC guidance, analyse official reports and cherry-pick the best of the press and the rest.
  • Commission guides and checklists for your own practice.