It is reasonable to assume that if a person pays too much tax, HMRC will automatically send the overpayment back to them. Unfortunately, this is not the case, and where a taxpayer is due a tax refund, they may need to claim it.

Why an overpayment may arise

There are various reasons why a person may pay more tax than they need to. For example, where a taxpayer is in Self-Assessment and makes payments on account, if their circumstances change and their income falls, they may have paid more than they need to. An employee may pay too much tax if they have been given the wrong tax code, or if they have only worked for part of the tax year and not had the benefit of their full personal allowance.

Determining if you have overpaid tax

There are various routes by which a tax overpayment can come to light. For example, taxpayers who do not complete a Self-Assessment tax return and have paid too much tax will receive either a P800 calculation or a Simple Assessment letter. These are normally sent out between June and March following the end of the tax year. The letter will tell them that they have paid too much tax and how to claim a refund. If the taxpayer is within Self-Assessment, they will not receive a letter. However, they may find out that they have overpaid tax when they complete their Self-Assessment tax return. However, if HMRC’s return software is used to complete the return, remember the tax calculation does not take into account any payments that have already been made, and when these are deducted from the amount that the taxpayer owes, it may become clear that the taxpayer has paid too much.

A taxpayer can also check whether they have paid too much by looking at their personal tax account online or via the HMRC app.

Claiming the refund

Where a taxpayer needs to claim a tax refund, there are various ways in which this can be done. A claim can be made online using the tool on the Gov.uk website at www.gov.uk/claim-tax-refund. A tax refund can also be claimed through the taxpayer’s personal tax account or via the HMRC app. The refund will normally be made within five days of making the claim online.

If the tax calculation letter tells the taxpayer that they will receive a cheque, they do not need to claim a refund. The cheque will normally be sent within 14 days of the date on the letter.

Where the taxpayer is within Self-Assessment, HMRC may not issue a tax refund if a tax payment, for example, a payment on account, is due within 45 days. Instead, they will set the refund against the next tax bill.

Interest is paid on overpaid tax at a rate of 1% below the Bank of England base rate, subject to a minimum level of 0.5%.

The 2025/26 tax year comes to an end on 5 April 2026. If you are thinking of selling assets that may realise a gain and have yet to use your 2025/26 capital gains tax annual exempt amount, it may be worth making the disposal before the end of the current tax year.

All individuals have an annual exempt amount for capital gains tax purposes. Net gains for the year (after the deduction of allowable losses for the tax year) are free of capital gains tax where they are sheltered by the annual exempt amount. For 2025/26, it is set at £3,000 and is worth £540 to a basic rate taxpayer and £720 to a higher rate taxpayer.

If the annual exempt amount is not used in the tax year, it is lost.

Example

Ben is thinking of selling two lots of shares, one that will realise an expected gain of £4,000 and one that will realise an expected gain of £5,000. He is having a new kitchen in June 2026 and needs to sell the shares to finance the project.

Ben is a higher rate taxpayer. He has not used his annual exempt amount for 2025/26.

If Ben waits until May to sell the shares, he will realise a gain of £9,000 in the 2026/27 tax year. Setting his 2026/27 annual exempt amount of £3,000 against the gain reduces the chargeable gain to £6,000 on which he will pay capital gains tax at 24%, giving rise to a tax bill of £1,440.

However, if Ben sells one lot of shares before 6 April 2026 realising a gain of £4,000 against which he can set his annual exempt amount for 2025/26 of £3,000, this will reduce the chargeable gain to £1,000 on which he will pay capital gains tax of £240.

If he sells the remaining shares after 5 April 2026, he will be able to set his 2026/27 annual exempt amount of £3,000 against the gain of £5,000, reducing his chargeable gain to £2,000 on which he pays tax of £480.

By selling some of the shares in 2025/26 rather than in 2026/27 and using his annual exempt amount for 2025/26 which would otherwise have been wasted, Ben is able to reduce the capital gains tax payable on the disposal of his shares by £720 from £1,440 to £720.

Spouses and civil partners

Spouses and civil partners can take advantage of the special rules that allow them to transfer assets or a share in an asset between them at a value that gives rise to neither a gain nor a loss. This can prevent wasting one spouse or civil partner’s annual exempt amount.

Example

Julie is planning on selling some shares in March 2026 which would give rise to a gain of £7,000. She has not used her annual exempt amount for 2025/26, nor has her wife Jane. Jane is not planning on making any disposals in 2025/26.

If Julie simply sells her shares, she will realise a gain of £7,000, of which £3,000 will be sheltered by her annual exempt amount. If Julie is a basic rate taxpayer, she will pay tax of £720 on the chargeable gain of £4,000 (£4,000 @ 18%).

However, if she transfers 3/7^th of her shares to Jane which Jane then sells in March 2026 the resulting gain of £3,000 will be covered by her annual exempt amount and no capital gains tax will be payable. Following the transfer, Julie will realise a gain of £4,000 of which £3,000 is covered by her annual exempt amount, reducing her chargeable gain to £180. By making use of Jane’s annual exempt amount, the couple save tax of £540.

All things being equal, receiving a pay rise which takes your income over £100,000 would be seen as a cause for celebration. However, all things are not equal, and as press reports attest, some people would rather turn down a promotion or cut their hours than take their earnings over £100,000.

We explain why this is.

Reason 1 – loss of the personal allowance

Individuals have a personal allowance of £12,570, allowing them to earn £12,570 before they pay tax. However, once their income exceeds the personal allowance income limit, their personal allowance starts to reduce. The personal allowance income limit is £100,000, unchanged since its introduction.

Where adjusted net income exceeds £100,000, the personal allowance is reduced by £1 for every £2 by which adjusted net income exceeds £100,000. A person with adjusted net income of £110,000 will only receive a personal allowance of £7,570 (£12,570 – ((£110,000 – £100,000)/2)).

Once a person’s adjusted net income reaches £125,140, their personal allowance is lost entirely so that they pay tax from the first pound that they earn.

The combined effect of the loss of the personal allowance and paying tax at the higher rate of 40% means that the marginal rate of tax between £100,000 and £125,140 is 60%. Add to that National Insurance of 2% and possibly student loan deductions of 9% or 15% and maybe pension contributions, the taxpayer does not actually keep much of the money that they earn between £100,000 and £125,140. Easy to see why some may deem the extra hours or workload as not being worthwhile.

Once income reaches £125,140, the marginal tax rate drops to 45% (the additional rate).

Reason 2 – loss of free childcare and tax-free top-up

Working parents may be able to receive free childcare for children from the age of nine months to four years for 30 hours a week for 38 weeks of the year. This is valuable. However, it is only available as long as neither partner has adjusted net income of more than t£100,000. Thus, once income reaches £100,000, free childcare is lost.

Working parents may also be able to benefit from the Government’s tax-free childcare scheme which provides up to £2,000 a year towards childcare costs (and up to £4,000 a year if the child is disabled). Under the scheme, the Government provides a £2 tax-free top-up for every £8 that the parents deposit in a dedicated account, up to the £2,000/£4,000 maximum top-up. However, as with free childcare, tax-free childcare is not available where either partner earns £100,000 or more.

For parents with young children, earning £100,000 or more will significantly increase their childcare costs.

Beating the system

There is a way to have the benefit of earning more than £100,000 a year and keeping your personal allowance, free childcare and the tax-free top-up. This is by making personal pension contributions to reduce your adjusted net income to below £100,000. You will still get the benefit of the money eventually, while retaining the personal allowance and childcare benefits.

The more altruistic can make charitable donations to reduce adjusted net income to below £100,000, which works in the same way.

As far as benefits in kind are concerned, there were both winners and losers in the Budget.

Winner – easement for plug-in hybrid electric vehicles

Under the company car tax rules, the taxable amount depends predominantly on the list price of a car and its CO2 emissions.

From 1 January 2025, new European Union and United Nations emissions standards were introduced which found the CO2 emissions for plug-in hybrid electric vehicles (PHEVs) to be higher than previously thought. Normally, an increase in the CO2 emissions figure would mean an increase in the taxable amount.

However, an easement will mean that, for a limited period, the amount charged to tax under the benefit in kind rules will be determined by reference to a nominal CO2 emission figure of 1g/km. Where a car’s CO2 emissions are between 1 and 50g/km, the appropriate percentage depends on the car’s electric range.

To be eligible for the easement the following conditions must be met:

• the vehicle was first registered on or after 1 January 2025;
• its CO2 emissions figure is 51g/km or above;
• it was registered under an emissions standard other than Euro 6d-ISC-FCM or Euro 6e; and
• the car’s electric range is at least one mile.

The easement will apply retrospectively from 1 January 2025.

Anyone accessing an eligible PHEV company car before 6 April 2028 will be able to benefit from the easement until the arrangements are varied or renewed or, if earlier, 5 April 2031.

Winner 2 – expansion of workplace benefits relief

Currently, reimbursed expenses are only tax-free if the employee would be entitled to a tax deduction had they met the cost themselves.

However, from 6 April 2026, employers who reimburse the costs of eye tests, flu vaccines and home working equipment will be able to do so tax-free.

Winner 3 – delayed start to ECOS changes

Legislation to bring certain cars made available to employees under an employee car ownership scheme (ECOS) within the tax charge for company cars had been due to come into effect on 6 April 2026. The changes will not be introduced until 6 April 2030.

Losers – removal of relief for homeworking expenses

An administrative easement that allowed employees to claim a flat rate deduction of £6 per week for the additional costs of working from home is being removed from 6 April 2026. This is worth £124.80 to a higher rate taxpayer and £62.40 to a basic rate taxpayer.

Employers will still be able to make a tax-free payment of £6 per week for additional homeworking costs, and employees will still be able to claim a deduction for the actual extra cost (although this will involve more work).

During the Chancellor’s Budget speech, savers received the unwelcome news that the rate of tax on savings income is to increase and the cash ISA limit to fall. Both changes will take effect from 6 April 2027.

Taxation of savings income

The taxation of savings income is quite complex as a number of factors come into play.

The first complication is the personal savings allowance, which is available to some taxpayers but not all. Basic rate taxpayers have a personal savings allowance of £1,000, whereas for higher rate taxpayers, the allowance is only £500. Additional rate taxpayers do not receive a personal savings allowance. Where available, the personal savings allowance is in addition to the personal allowance.

The second complication is the savings starting rate band. The savings starting rate of tax of 0% applies to savings income within the savings starting rate band. This is set at £5,000. However, if the taxpayer has non-savings income in excess of their personal allowance, the savings starting rate band is reduced pound for pound. Individuals with taxable non-savings income of £5,000 and above do not benefit from the savings starting rate band.

Where an individual has savings income that is not sheltered by the personal allowance or the personal savings allowance and which does not benefit from the savings starting rate, it is currently taxed at the normal income tax rates, i.e. 20% where it falls in the basic rate band, 40% where it falls within the higher rate band and at 45% where it falls in the additional rate band.

However, this is to change. From 6 April 2027, savings income will be taxed at the relevant savings tax rate. The rates will be two percentage points higher than the standard income tax rates. Consequently, for 2027/28, savings income will be taxed at 22% where it falls in the basic rate band, at 42% where it falls in the higher rate band and at 47% where it falls in the additional rate band.

In a further twist, the income tax ordering rules are also changed from 6 April 2027, moving away from the principle that reliefs and allowances are allocated so as to give the lowest tax bill. From that date, the personal allowance will be allocated first against employment income, trading and pension income, rather than against savings and property income which are taxable at a higher rate.

Cash ISAs

Savers are advised to make use of their cash ISA allowance to keep interest on savings tax-free. With the rise in the savings tax rates from 6 April 2027, using the cash ISA allowance will generate greater tax savings.

However, for those who prefer to keep their savings in cash rather than investing in stocks and shares, there is more bad news. From 6 April 2027, savers under 65 will only be able to invest £12,000 a year in a cash ISA; the ISA limit is to remain at £20,000, but for under 65s using their full allowance, at least £8,000 of that must be invested in a stocks and shares ISA. However, savers aged 65 and over can invest the full £20,000 in a cash ISA.

Existing ISAs are unaffected by the change.

In her tax-raising Budget on 26 November 2025, the Chancellor announced that the dividend ordinary rate and the dividend upper rate are to rise by two percentage points from 6 April 2026. This will affect director/shareholders in personal and family companies who extract profits in the form of dividends.

How dividends are taxed

Dividends have their own tax rates, which are lower than the standard income tax rates. Dividend income which is not sheltered by the personal allowance or the dividend allowance is treated as the top slice of income. It is taxed at the dividend ordinary rate where it falls in the basic rate band, at the dividend upper rate where it falls in the higher rate band and at the dividend additional rate where it falls in the additional rate band.

For 2025/26, the dividend ordinary rate is 8.75%, the dividend upper rate is 33.75% and the dividend additional rate is 39.35%.

From 6 April 2026, the dividend ordinary rate rises to 10.75% and the dividend upper rate rises to 35.75%. There is no change in the dividend additional rate which remains at 39.35%.

All individuals are entitled to a dividend allowance, which is £500 for 2025/26 and remains at this level for 2026/27. The dividend allowance acts as a nil rate band; dividends sheltered by the allowance are tax-free. However, it uses up part of the band in which it falls.

Impact of the rise

Where profits are extracted as dividends and the shareholder is a basic or higher rate taxpayer, they will pay an additional £20 in tax on every £1,000 of dividends paid in 2026/27 as compared to 2025/26. A shareholder taking £50,000 of dividends a year will pay an additional £1,000 in tax.

Additional rate taxpayers are unaffected by the change.

Beating the rise

Where a personal or family company has retained profits, consideration should be given to paying dividends before 6 April 2026 if the tax hit will be lower than if the dividend is paid on or after that date. However, if dividends have already been paid to use up the basic rate band, there is no point paying a dividend if it would be taxed at the dividend upper rate if paid before 6 April 2026 and at the dividend ordinary rate if paid on or after that date; 10.75% is lower than 33.75%.

In a family company scenario with an alphabet share structure, to minimise the total tax paid on profits extracted as dividends, make sure shareholders’ dividend allowances and basic rate bands are used up before paying dividends taxable at the higher rates.

Consideration could also be given to extracting profits in other ways, such as employer pension contributions or tax-free benefits in kind.

A director’s loan account is simply a means of keeping track of transactions between the director and the company of which they are a director. Where the company is a personal or family company, the director may borrow from the company or lend money to the company. Similarly, the director may meet expenses of the company, or the company may pay the director’s personal bills. These transactions are recorded in the director’s loan account. Dividend or salary payments may also be credited to the account.

If the director’s account is overdrawn at the end of the company’s accounting period or at any point during the tax year, there may be tax implications to address.

Close companies

If the company is close, as personal companies and most family companies are, there will be tax consequences for the company if the director’s account is overdrawn at the company’s year end. Broadly, a close company is one that is under the control of five or fewer participators or any number of participators if those participators are directors. A participator is someone who has an interest in the capital or income of the company.

The action that the company needs to take in respect of an overdrawn director’s loan account depends on whether the account is still overdrawn at the corporation tax due date, which is nine months and one day after the end of the accounting period.

If the loan has been repaid within this time frame, the company must disclose the loan on form CT600A when they prepare their corporation tax return, notifying HMRC of the amount that was outstanding at the end of the accounting period and the date(s) on which the repayments were made.

If the account remains overdrawn at the corporation tax due date, the company must pay section 455 tax on the outstanding loan balance along with their corporation tax. Anti-avoidance provisions exist to prevent the loan being repaid and then reborrowed in a bid to avoid the section 455 charge.

Section 455 tax

The company must pay section 455 tax on the amount by which the director’s account remains overdrawn nine months and one day after the company year end. The rate of section 455 tax is aligned with the upper dividend rate (currently 33.75%). The tax is paid with the corporation tax but crucially is not corporation tax.

Section 455 tax is a temporary tax in that it is repayable nine months and one day after the end of the accounting period in which the loan is repaid.

Clearing the loan, whether by an injection of cash, declaring a dividend or by paying a bonus, will prevent a section 455 liability from arising. However, this will not always be the best option. If the loan is cleared by a dividend or a bonus, this will trigger tax and (in the case of a bonus) National Insurance liabilities which may be greater than the section 455 tax. It may be cheaper to pay the section 455 tax and to clear the loan at a later date when it can be done more tax efficiently.

Benefit in kind charge If the loan balance exceeds £10,000 at any time in the tax year, a tax charge will arise under the benefit in kind provisions by reference to the difference between interest on the loan at the official rate and that paid by the director (if any). The employer will also pay Class 1A National Insurance on the taxable amount.

Many employers have a social event for employees around the Christmas period. This may take the form of a Christmas party or dinner or another social event, such as wreath-making and cocktails. When planning the event, it is important to consider the tax and National Insurance implications up front. Although there is a specific tax exemption for annual parties and other functions, there are conditions that must be met for the exemption to apply. Ensuring that your Christmas event meets these conditions at the planning stage will prevent employees being hit with a tax charge on the associated benefit.

Conditions

To qualify for the exemption, the party or function must be:

• an annual party or function; and
• available to the employer’s employees generally or to those at a particular location.

Where there is a single annual party or function in the tax year, the cost per head must not exceed £150. Where there is more than one annual party or function in the tax year, the combined cost must not exceed £150 for all events to fall within the scope of the exemption. The cost per head is found by dividing the total cost of the party or function plus the cost of any transport incidentally provided by the total number of attendees (employees plus guests).

Watchpoints

Only annual events qualify for the exemption. As the name suggests, these are events that are held every year, such as an annual staff Christmas party. If the event is a one-off event, the exemption will not apply. This is the case regardless of whether the event is open to all employees and the cost per head is not more than £150.

To fall within the exemption, the event must also be open to all employees or all those at a particular location. HMRC have confirmed that departmental events qualify. However, an event for senior staff only would not fall within the scope of the exemption.

When calculating the cost per head, VAT is included even if this is subsequently recovered. It is also important to include guests as well as employees when performing the calculation. However, if the cost per head is more than £150, the full amount is taxable, not just the excess over £150. Where an employee brings a guest and the cost per head exceeds £150, the employee will be taxed on their attendance and that of their guest.

If there is more than one annual function in the tax year, the functions will be exempt as long as the combined cost per head is not more than £150. Where this limit is exceeded, the employer can choose how best to use the exemption. When allocating the exemption, remember to consider the impact of guests – it is better to leave an event costing £100 per head attended only by employees in charge than one costing £80 per head which is attended by employees and their partners as here the taxable amount will be £160 (2 x £80).

Consider a PSA

If a tax charge does arise in respect of a Christmas event, as will be the case, for example, if the event is not an annual event, the employee will suffer a benefit in kind tax charge. The taxable amount will be the cost per head for the employee and any associated guests. The employer will also suffer a Class 1A National Insurance charge.

To maintain the goodwill element of the event, the employer may wish to include the benefit within a PAYE Settlement Agreement and meet the associated tax liability on the employee’s behalf.

It used to be possible to report errors in a VAT return to HMRC on form VAT652. This is no longer the case; form VAT652 was withdrawn from 5 September 2025. This means that now, where an error has been made in a VAT return, the error must be corrected in one of the following ways:

• updating the next VAT return;
• making the correction online; or
• writing to HMRC to notify them of the correction.

Updating the next VAT return

An error can be corrected by making an adjustment in the next VAT return if the value of the error is £10,000 or less or if the error is between £10,000 and £50,000 and does not exceed 1% of the box 6 figure (net outputs) in the VAT return for the period in which the error was discovered.

A correction can only be made by updating the next VAT return if the error was made carelessly.

The net value of the error is the difference between the additional amount owed to HMRC as a result of the error and the additional refund due from HMRC as a result of the error.

Correcting the error online

If the value of the error is more than £50,000, is between £10,000 and £50,000 and more than 1% of the box 6 figure in the VAT return  for the period in which the error was discovered or was made deliberately, it must be notified to HMRC rather than being corrected in the next VAT return. The default route for doing this is to make the correction online. The trader will need to sign into their Government Gateway account.

When reporting the error online, the following information must be provided:

• how each error arose;
• the VAT accounting period in which it occurred;
• whether it was an input tax error or an output tax error;
• the VAT underdeclared or overdeclared in each VAT period;
• how the VAT over or under declaration was calculated;
• whether any of the errors resulted in the payment of an amount to HMRC that was not due; and
• the total amount to be adjusted.

Refund claims can only be accepted where all the above information is provided.

Notifying in writing

If the trader is unable to use the online service, they will need to notify HMRC in writing of the errors if they are of a type that cannot be corrected in the next VAT return. The letter must include the trader’s VAT registration number and the information listed above. It should be sent by post to:

BT VAT

HMRC

BX9 1WR

Time limit

Errors should be corrected as soon as possible, but time limits do apply.

The time limit for correcting errors in a VAT return is four years from the end of the prescribed period in which the error occurred where the error related to output tax or over-claimed input tax, and four years from the due date of the return for the prescribed accounting period where the error related to under-claimed input tax.

The four-year time limit does not apply to deliberate errors.

Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) is mandatory from 6 April 2026 for self-employed traders and landlords whose combined gross trading and business income in 2024/25 is £50,000 or more. Those within MTD for ITSA must maintain digital records and submit quarterly updates and a final declaration to HMRC electronically using software compatible with MTD for ITSA.

As the name suggests, MTD for ITSA relies on digital record-keeping and communication. HMRC recognise that not everyone is able to operate in a digital world and those who they accept as being ‘digitally excluded’ can apply for an exemption from MTD for ITSA.

Meaning of ‘digitally excluded’

HMRC acknowledge that there are various reasons why a person may consider themselves digitally excluded. For example, a person may be digitally excluded because:

• their age, a health condition or a disability prevents them from using a tablet, computer or smartphone to keep digital records and to submit returns to HMRC;
• they are a practising member of a religious society or order whose beliefs are incompatible with using digital communications or keeping digital records and they do not use a computer, tablet or smartphone for business or personal use; or
• they cannot get internet access at their home or business because of their location, and they are unable to get access at a suitable alternative location.

However, HMRC will not accept an application for exemption from MTD for ITSA if the only reason for the application is one of the following:

• the person previously filed a paper tax return;
• the person is unfamiliar with accounting software;
• the person only has a small number of records to create each year; or
• the person will spend extra time or incur additional costs as a result of complying with MTD for ITSA.

Where a person has an existing exemption from MTD for VAT because they are digitally excluded, providing that the person’s circumstances have not changed, HMRC will accept that they are also exempt from MTD for ITSA.

Applying for an exemption

To apply for an exemption from MTD for ITSA on the grounds of digital exclusion, a person will need to write to HMRC ahead of their MTD for ITSA start date. They must provide the following information:

• their National Insurance number;
• their name and address;
• details of how they currently submit their returns (including the use of an agent or other person to submit them on their behalf);
• the reason that they think that they are digitally excluded, including information in support of their claim;
• whether they have an accountant or agent and what they do for them; and
• any additional needs that they have.

An application can be made by an agent on behalf of someone who is digitally excluded.

It should be noted that if a person is unable to use digital returns themselves, for example because of age or disability, but they have an agent or someone else who can keep digital records and file digital returns on their behalf, an exemption will not be forthcoming.

The application should be sent to:

Self Assessment

HM Revenue and Customs

BX9 1AS

Where a person is already exempt from MTD for VAT because they are digitally excluded, they will also need to write to HMRC to apply for an exemption from MTD for ITSA, providing their National Insurance number, their VAT registration number and the reason that they are digitally excluded from submitting their VAT returns using software that is compatible with MTD for VAT.

An agent can apply for an exemption on a client’s behalf.

Other exemptions

The following are automatically exempt from MTD for ITSA and are unable to sign up voluntarily:

• those completing a tax return as a trustee, including a trustee of a charitable trust or a non-registered pension scheme;
• a person who does not have a National Insurance number on 31 January before the start of the tax year;
• a person completing a tax return as the personal representative of someone who has died;
• a Lloyd’s underwriters in respect of their underwriting activity; and
• a non-resident company.

Anyone in the above groups does not need to apply for an exemption as it is automatic.