Understanding the Practical Implications of MTD is Now Essential.
6 April 2026 marked the official start of Making Tax Digital for Income Tax Self Assessment (MTD for ITSA), with HM Revenue & Customs (HMRC) bringing the regime into force.
This marks one of the most significant administrative changes to UK income tax in a generation. For individuals with self-employment or property income, understanding the practical implications of MTD is now essential.
At its core, MTD represents a shift away from a single annual tax return towards continuous digital record keeping and periodic reporting. The underlying tax rules remain unchanged. What has changed is how, and how often, information must be reported to HMRC.
‘MTD is less about changing tax rates and more about changing how individuals manage their compliance. Clients who understand early what it means for them personally and work with their advisor, will find the transition much more straightforward,’ says Kerry Emblem, Tax Partner at PKF Channel Islands.
What is MTD for Income Tax and Who Must Comply
From today, individuals within scope of MTD are required to:
- Maintain digital records of income and expenses
- Submit quarterly updates to HMRC
- File a final digital tax return at year end
This replaces the traditional reliance on a single annual Self Assessment submission.
Who must follow the MTD rules?
MTD applies initially to all individuals with gross trading and/or property income exceeding £50,000.
The regime will expand in phases:
- April 2026: Income over £50,000
- April 2027: Income over £30,000
- April 2028: Income over £20,000
- Partnerships: To be confirmed
Crucially, this is based on gross income, not profit.
Understanding Qualifying Income
Qualifying income includes:
- Self-employment turnover
- UK property rental income
- Foreign property income (for UK residents only)
For non-UK resident individuals, this distinction becomes particularly important.
HMRC determines whether you fall within MTD using figures reported on your most recently filed UK tax return, specifically the following pages from the UK tax return:
- SA103 (self-employment)
- SA105 (UK property)
- SA106 (foreign property)
For non-UK residents, MTD only applies where there is relevant UK-taxable income. Individuals with no UK tax exposure are outside the regime.
If You Are UK Resident
HMRC considers worldwide income, including:
- Self-employment income
- UK property income
- Foreign property income
If your combined gross income exceeds the threshold, MTD will apply.
If You Are Non-UK Resident
HMRC considers only:
- UK-taxable self-employment income
- UK property income
This means:
- Overseas income outside the scope of UK tax is ignored for MTD thresholds
- A non-resident with only overseas income will not fall within MTD
- A non-resident with UK rental income above the threshold may fall within scope, subject to deferral
HMRC explains how qualifying income is calculated here.
One year deferral period for non UK residents
Individuals who are non UK resident and file the non-residence pages (SA109) may benefit from a deferral until at least April 2027, regardless of income level. However, this is not automatic in every case, and it is important to confirm whether these pages were included in the relevant reference year.
For example, a non-UK resident (including a Jersey or Guernsey resident) earning £60,000 from UK rental property would not be required to join MTD from April 2026, despite exceeding the income threshold for 2026. As a non-UK resident filing the non-residence pages, they are currently outside the initial mandation and would not fall within MTD until April 2027.
By contrast, a non-UK resident earning £200,000 from overseas property but only £10,000 from UK sources would not meet the threshold at all, as only UK-taxable income is considered.
In another scenario, a non-UK resident with £80,000 of UK rental income would similarly not be required to join MTD until at least April 2027, provided the non-residence pages (SA109) were included in the most recent tax return submitted
Because HMRC determines entry based on the tax return for which the filing deadline has just passed, reviewing both your residency status and the income reported on that return is essential.
When Will MTD for Income Tax Affect You
When MTD for income tax will apply to you depends on your most recently submitted tax return, as HM Revenue & Customs uses this to determine your qualifying income and entry point into the regime.
- Entry in April 2026 is based on your 2024/25 tax return
- Entry in April 2027 is based on your 2025/26 tax return
- Entry in April 2028 is based on your 2026/27 tax return
Reviewing your latest submitted return will usually confirm when you are expected to join MTD.
For non-UK residents, timing may differ.
As noted earlier, MTD only applies where there is relevant UK-taxable income. Individuals with no UK tax exposure are outside the regime.
In addition, many non-UK residents are not required to join MTD from April 2026, even where income exceeds £50,000, due to the current deferral for those filing the non-residence pages (SA109).
As a result, non-UK residents should not assume they fall within MTD at the same time as UK residents.
MTD Start Dates for Sole Traders
MTD start dates for sole traders are determined by MTD deadlines by income thresholds:
- Over £50,000: April 2026
- Over £30,000: April 2027
- Over £20,000: April 2028
Subject to the deferral for non UK residents.
What Records You Must Keep Digitally
The MTD digital record keeping rules require each transaction to be recorded digitally, including:
- Amount
- Date
- Category
Understanding MTD’s Quarterly Update Schedule
The quarterly tax updates HMRC requires includes submissions for each standard tax-year quarter.
The standard quarters are:
- 6 April – 5 July (due 7 August)
- 6 July – 5 October (due 7 November)
- 6 October – 5 January (due 7 February)
- 6 January – 5 April (due 7 May)
Penalties and Exemptions Under MTD Rules
Late submissions will attract penalty points under HMRC’s system. A limited soft landing applies for quarterly updates in the first year.
Digital exclusion may apply in limited circumstances and generally requires application.
How to Register and Set Up for MTD
Understanding how to register for MTD is important, because once mandated you cannot simply continue filing as before.
Getting started with MTD involves:
- Confirming your eligibility
- Signing up for MTD through HMRC
- Using compatible software
- Authorising your tax adviser, if appropriate
Full guidance is available here:
https://www.gov.uk/guidance/use-making-tax-digital-for-income-tax
How PKF Channel Islands Can Help
Find out more about our tax services and if you would like clarity on how MTD affects you personally, please contact Kerry Emblem, Tax Partner at KerryE@pkfci.com
Frequently Asked Questions
Does MTD apply to Channel Islands residents?
Yes, where UK-taxable income exceeds thresholds, although deferral may apply for non-UK residents filing non-residence pages.
Does MTD change how much tax I pay?
No. It changes reporting, not tax rates or payment dates.
Can I be exempt?
Possibly, subject to HMRC approval for digital exclusion.