HMRC has published a new Making Tax Digital newsletter. This newsletter is mainly intended for taxpayers and agents who are currently testing the Making Tax Digital for Income Tax (MTD for IT) system. MTD for IT will become mandatory in phases from April 2026.

For nearly two years, HMRC has been stress-testing its MTD for IT systems to ensure they can support increasing numbers of volunteer taxpayers. So far, HMRC has confirmed that testing has successfully deal with:

• The sign-up process works for individuals and agents, including those with non-standard accounting periods.
• Volunteers can make and edit quarterly submissions and add income sources.
• Volunteers can opt out of quarterly obligations.
• PAYE income pre-populates into estimated payments on account.
• Payments are correctly allocated within MTD for IT.

More recent testing in 2025 as HMRC scales up the rollout include:

April–June 2025

• Re-testing sign-up to confirm it can cope with larger volumes.
• Testing the ability for volunteers to appoint multiple agents (one for quarterly returns and one for end-of-year submissions).

July–September 2025

• Ensuring taxpayers and agents can make their first quarterly update via software completing the quarterly requirement.
• Checking the accuracy of estimated payments on account based on income to date.
• Testing key functions in the digital tax account, such as adding or stopping income sources and opting in or out of the service.

During the testing phase, there are no penalties for late submissions, but submitting on time is encouraged by HMRC as it helps those testing the system understand the requirements and allows for the service to be properly stress tested.

If your qualifying income is over £50,000 in the 2024–2025 tax year, you will be required to start using MTD for IT from 6 April 2026. There are some minimal exemptions in place.

There are now less than 2 months to the self-assessment filing deadline for submissions of the 2024-25 tax returns. We urge our readers who have not yet completed and filed their 2024-25 tax return to file as soon as possible to avoid the stress of last-minute preparations as the 31 January 2026 deadline fast approaches.

You should also be aware that payment of any tax due should also be made by this date. This includes the remaining self-assessment balance for the 2024-25 tax year, and the first payment on account for the 2025-26 tax year.

Earlier this year, more than 11.5 million people submitted their 2023-24 self-assessment tax returns by the 31 January deadline. This included 732,498 taxpayers who left their filing until the final day and almost 31,442 that filed in the last hour (between 23:00 and 23:59) before the deadline!

There is a new digital PAYE service for the High Income Child Benefit Charge (HICBC). This allows Child Benefit claimants who previously used self-assessment solely to pay the charge to opt out and instead pay it through their tax code.

If you are filing online for the first time you should ensure that you register to use HMRC’s self-assessment online service as soon as possible. Once registered an activation code will be sent by mail. This process can take up to 10 working days. 

If you miss the filing deadline you will be charged a £100 fixed penalty (unless you have a reasonable excuse) which applies even if there is no tax to pay, or if the tax due is paid on time. There are further penalties for late tax returns still outstanding 3 months, 6 months and 12 months after the deadline. There are additional penalties for late payment of tax amounting to 5% of the tax unpaid at 30 days, 6 months and 12 months.

The rules that govern who pays Income Tax in Scotland is determined by whether an individual is considered a Scottish taxpayer. For most people, determining Scottish taxpayer status is straightforward. Individuals who live in Scotland are considered Scottish taxpayers, while those who live elsewhere in the UK are not.

If a taxpayer has homes in both Scotland and elsewhere in the UK, HMRC guidance is used to determine their main home for Scottish Income Tax purposes. Those without a permanent home who regularly stay in Scotland, such as offshore workers or hotel residents, may also be liable for SRIT.

If a person moves to or from Scotland during a tax year, their tax liability is determined by where they spent the majority of that year. Scottish taxpayer status applies to the entire tax year and cannot be split.

Those defined as Scottish taxpayers are liable to pay the Scottish Rate of Income Tax (SRIT) on their non-savings and non-dividend income.

The chancellor Rachel Reeves announced as part of the Autumn Budget measures that the Income Tax thresholds will be maintained at their current levels for a further three years until April 2031. This will see the personal tax allowance frozen at £12,570 through to April 2031 across the UK. In addition, the higher rate threshold will remain at £50,270 (there are differences in Scotland). National Insurance thresholds will also remain frozen until 2031.

This means that more taxpayers will be pushed into paying higher taxes as income increases at a far faster rate than the frozen tax bands. This phenomenon is known as fiscal drag. The freezing of most of the Income Tax allowance and rates at current levels until 2031 means that many taxpayers will pay more Income Tax as their income increases with no corresponding increases in their allowances and more taxpayers will see their taxable income boosted into the 40%, or 45%, Income Tax bands.

The existing thresholds for the basic rate, higher rates and additional rates of tax have also been frozen where income is derived from employment or self-employment. However, the government will create separate tax rates for property, savings & dividend income.

• Tax on most dividend income will increase by 2% from April 2026. The ordinary rate will rise from 8.75% to 10.75%, and the upper rate from 33.75% to 35.75%. The additional rate will remain unchanged at 39.35%.

The changes to the tax rates for property and savings income will take effect from April 2027.

• From 2027-28, the property basic rate will be 22%, the property higher rate will be 42%, and the property additional rate will be 47%. These rates will apply across England, Wales and Northern Ireland.
• From 2027-28, the savings basic rate will be increased to 22%, the savings higher rate will be increased to 42% and the savings additional rate will be increased to 47%.

The current rules that allow Basic Rate taxpayers to receive £1,000 of interest without paying tax, and Higher Rate taxpayers to receive £500 without paying tax are set to remain as is the Starting Rate for Savings of up to £5,000 for lower earners.

Making Tax Digital for Income Tax (MTD for IT) will become mandatory in phases from April 2026. If you are self-employed or a landlord and have over £50,000 in qualifying income you need to start preparing to submit quarterly updates, keeping digital records and cope with a new penalty system.

Your qualifying income is the total income you receive in a tax year from self-employment and property. Other income, such as from employment (PAYE), partnerships or dividends (including from your own company), do not count towards your qualifying income.

HMRC will calculate your qualifying income based on your self-assessment tax return you submitted in the previous year. For example, to assess your income for the 2026-2027 tax year, they will use the return you submit for the 2024-2025 tax year which is due to be submitted by 31 January 2026. If your qualifying income is over £50,000, HMRC will inform you when you need to start using MTD for IT.

Qualifying income includes your share of income from jointly owned property, certain trusts, VAT-registered businesses and disguised investment management fees. It does not include business partnership income, transition profits or qualifying care relief payments.

Initially, MTD for IT will only apply to self-employed individuals, and landlords with an annual qualifying income exceeding £50,000. From 6 April 2027, the rules will extend to those with a qualifying income between £30,000 and £50,000. From April 2028, sole traders and landlords with qualifying income over £20,000 will need to follow MTD rules. The government is also exploring ways to bring those earning under £20,000 within the MTD framework at a future date.