If one partner earns under £12,570, you could transfer part of their unused personal allowance and cut your tax bill by up to £252 a year.

The Marriage Allowance applies to married couples and civil partners where one partner does not pay Income Tax, usually because their income is below the personal allowance. For the 2025–26 tax year, this means the lower-earning partner must earn less than £12,570.

The allowance means the lower-earning partner can transfer up to £1,260 of their unused personal allowance to their spouse or civil partner. This transfer is only permitted if the recipient is taxed at no more than the basic rate of Income Tax. This means the higher-earning partner must usually have an income between £12,571 and £50,270. For those living in Scotland, this generally applies where income does not exceed £43,662, which is the point at which the Scottish higher rate begins.

By using the allowance, up to £1,260 of unused personal allowance can be transferred, resulting in a tax saving of up to £252 per year for the higher-earning partner, calculated at 20% of the amount transferred.

If you meet the eligibility criteria and have not yet claimed the Marriage Allowance, you can backdate your claim for up to four previous tax years. At present, claims can be backdated to the 2021–22 tax year, meaning you may be able to claim for 2021–22, 2022–23, 2023–24, 2024–25 and the current 2025–26 tax year. This could result in a total tax saving of up to £1,260 across those years. Claims, including backdated claims and applications for the current year, can be made online via GOV.UK.

From April 2026, Making Tax Digital for Income Tax (MTD for IT) will become mandatory for many self-employed persons and landlords, marking a significant change in how they manage their tax affairs. The new regime is designed to modernise the tax system by requiring taxpayers to interact with HMRC through an online tax account, rather than relying solely on an annual self-assessment return.

Initially, MTD for IT will apply to individuals with qualifying income of more than £50,000 a year from self-employment and/or property. From 6 April 2027, the scope will widen to include those with income between £30,000 and £50,000. Alongside this, a new points-based penalty system will be introduced for the late filing and late payment of MTD for IT liabilities.

Under MTD for IT, affected taxpayers will need to keep digital records of their income and expenses using compatible software. Instead of reporting everything once a year, they will be required to send quarterly updates to HMRC, providing a summary of their business or property income and costs. These updates are not tax bills, but they are intended to give HMRC a clearer picture of income throughout the year. A final declaration will still be required after the end of the tax year, with any tax due payable by 31 January following the year end.

Qualifying income is a key concept under MTD for IT. It is broadly the total income earned in a tax year from self-employment and property income, including income from multiple trades or rental properties. Other sources of income reported on a tax return, such as employment income under PAYE, dividends, pensions or partnership income, does not count towards this threshold.

If you are unsure how MTD for IT will affect you, or would like any support preparing for the change, we would be happy to help.

HMRC’s figures show thousands of taxpayers are filing over the festive period, but leaving your return until late January risks penalties, stress and avoidable payment problems.

A new press release by HMRC has highlighted that 4,606 taxpayers took the time to file their tax return online on Christmas Day with a further 10,479 taxpayers completing their tax returns on Boxing Day. In total, 37,435 self-assessment returns were filed between 24 and 26 December and a further 54,053 returns between New Year’s Eve and New Year’s Day. HMRC even joked that festive filing has, for some, become as much a Christmas tradition as watching the King’s Speech or avoiding the washing up!

HMRC’s Chief Customer Officer, said:

‘Millions of customers have already completed their tax returns and can start 2026 with one less thing to worry about. For anyone yet to file, don’t leave it until the last minute. Filing now means you know exactly what you owe and have time to arrange payment. Search ‘Self-Assessment’ on GOV.UK to get started.’

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. 

We would encourage our readers to complete their tax return as early as possible to avoid the last-minute stress as the 31 January 2026 filing date looms. If you miss the filing deadline then 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 also additional penalties for paying late of 5% of the tax unpaid at 30 days, 6 months and 12 months.

Are you ready for Making Tax Digital for Income Tax (MTD for IT)? This new way of reporting will become mandatory in phases from April 2026. If you are self-employed or a landlord earning over £50,000, now is the time to prepare for digital record keeping, quarterly updates and the new penalty system that will apply under MTD for IT.

The date from which you must start using MTD for IT depends on your level of qualifying income. If your qualifying income exceeded £50,000 in the 2024–25 tax year, you will need to use MTD for IT from 6 April 2026. If your qualifying income exceeded £30,000 in the 2025–26 tax year, you will need to use MTD for IT from 6 April 2027. Where qualifying income exceeds £20,000 in the 2026–27 tax year, the government has confirmed that MTD for IT will apply from April 2028. Qualifying income is defined as the total income you receive in a tax year from self-employment and property before expenses.

You are currently exempt from MTD for IT if you meet specific conditions that automatically exempt you from the service, such as reasons relating to age, disability, or location, if you have applied for and been granted an exemption by HMRC, or if your qualifying income is £20,000 or less in a tax year.

HMRC’s guidance on MTD for IT has been updated and now includes further information on both permanent and temporary exemptions. It explains which exemptions apply automatically and which require an application. Permanent exemptions are generally automatic and continue to apply unless your circumstances change. You will need to apply for an exemption if you believe you are digitally excluded from using MTD for IT. If you are not required to use MTD for IT, you must continue to report your income and gains through the self-assessment tax return where applicable.

With the 31 January deadline approaching, thousands of taxpayers are using HMRC’s Time to Pay service to spread the cost of their self-assessment tax bill rather than facing immediate payment pressure.

HMRC has reported that thousands of people have set up payment plans to help spread the cost of their self-assessment tax bill. Taxpayers with outstanding tax liabilities, may be eligible to receive support with their tax affairs through HMRC’s ‘Time to Pay’ service. Almost 18,000 self-assessment payment plans were set up between 06 April 2025 and 30 November 2025. The deadline to file and pay any tax owed for the 2024-25 tax year is 31 January 2026.

If you owe tax to HMRC, you may be able to set up an online ‘Time to Pay’ payment plan depending on the type of tax debt and your circumstances. For self-assessment, you can create a payment plan online if you’ve filed your latest tax return, owe £30,000 or less, are within 60 days of the deadline and have no other debts or payment plans with HMRC.

A Time to Pay arrangement cannot be set up until a self-assessment return has been filed. If the tax owed is more than £30,000, or a longer repayment period is needed, people can still apply but will need to contact HMRC directly. HMRC will typically ask for details about your income, expenses, other tax liabilities, and any savings or assets, which they may expect you to use toward your debt.

HMRC will usually only offer taxpayers the option of extra time to pay if they think they genuinely cannot pay in full now but will be able to pay in the future. If HMRC do not think that more time will help, then they can require immediate payment of a tax bill and start enforcement action if payment is not forthcoming.