Thinking of starting a company at 16? Know the rules, risks and responsibilities before you take the leap.

The Companies Act 2006 does not set a minimum age for shareholders, meaning even minors can hold shares unless a company’s articles of association explicitly state otherwise. However, the minimum age for a company director in the UK is 16 years.

Directors carry significant legal responsibilities, including ensuring that company accounts and reports are accurate and filed on time with the relevant authorities. Even if the company is dormant, you must still submit confirmation statements and accounts annually without fail.

Setting up a company is generally straightforward, but being a director comes with serious ongoing responsibilities. These duties are not just formalities, and failure to meet them can lead to personal fines, disqualification or even imprisonment.

Even dormant companies must file annual accounts and confirmation statements regularly. While directors can delegate daily tasks, such as hiring an accountant or other professionals, they remain legally responsible for the company’s records, accounts, and overall performance.

Seeking professional advice before starting a company is highly recommended, especially for a 16-year-old unlikely to have all the necessary business knowledge.

Thinking of gifting income to a spouse or partner? HMRC’s settlements rules may still tax it as your own.

The settlements legislation is contained in s.624 ITTOIA 2005. The legislation seeks to ensure that where a settlor has retained an interest in property in a settlement then the income arising is treated as the settlor’s income for all tax purposes. A settlor can be said to have retained an interest if the property or income may be applied for the benefit of the settlor, a spouse or civil partner.

In general, the settlements legislation can apply where an individual enters into an arrangement to divert income to someone else and in the process, tax is saved.

These arrangements must be:

• bounteous, or
• not commercial, or
• not at arm’s length, or
• in the case of a gift between spouses or civil partners, wholly or substantially a right to income.

However, there are a number of everyday scenarios where the settlements legislation does not apply. In fact, after much case law in this area, HMRC has confirmed that if there is no 'bounty' if the gift to a spouse or civil partner is an outright gift which is not wholly, or substantially, a right to income, then the legislation will not apply.

Not sure if a business cost is deductible? HMRC’s ‘wholly and exclusively’ rule is the key test.

When deciding whether an expense is deductible or not it is important to bear in mind that the expenditure must be incurred wholly and exclusively for the purposes of your trade or employment. This is a difficult starting point as there is often a fine line to thread between deciding whether an expense meets this ‘wholly and exclusively’ rule.

In general, HMRC takes a slightly more relaxed view that a strict reading of the legislation would suggest. HMRC’s own internal manuals offers advice to HMRC inspectors to exercise care when applying the ‘wholly and exclusively’ test. The advice states that where there is an incidental benefit that does not, of itself, mean that the expenditure is disallowed.

The following example helps clarify this point. A self-employed consulting engineer may travel to exotic locations to advise on projects. The travel and the exotic locations may be benefits but where there was no private purpose they are incidental to the carrying on of the profession and the cost is allowable.

It is also possible to apportion part of an expense where necessary. For example, when considering the running costs of a car used partly for the purposes of the trade and partly for other purposes. HMRC’s position is that the costs associated with the business use of the car would be deductible.

Using your own car or bike for work travel? You may be able to claim tax relief for business mileage.

If you are employed and spend your own money on items needed for your job, you may be eligible to claim tax relief on those expenses. However, you can usually only claim tax relief on items that are exclusively used for work purposes.

For example, you might be able to claim tax relief when using your own vehicle, whether it is a car, van, motorcycle or bicycle, for work-related travel. Generally, travel between home and your regular place of work does not qualify. However, if you travel to a temporary workplace or incur business mileage, tax relief is typically allowed.

Employers often reimburse mileage using a set rate per mile depending on the type of vehicle. HMRC publishes approved mileage rates that apply when employees use their own vehicles for business journeys. If your employer uses these rates, the reimbursement is not treated as a taxable benefit.

If you are reimbursed at a rate below the HMRC approved amount, you can claim tax relief on the difference through Mileage Allowance Relief. For cars, the rate is 45p per mile for the first 10,000 miles and 25p per mile thereafter. The rate is 20p per mile for bicycles and 24p per mile for motorcycles.

Additionally, there is a passenger payment of 5p per mile per colleague if you transport other employees during business journeys in a car or van.

Not all goods and services carry a 20% VAT, knowing the right rate can save costly mistakes.

When a VAT-registered business issues an invoice to their customer, they must ensure that they charge the correct rate of VAT. Whilst most businesses in the UK charge VAT at the standard rate of 20% there are a number of different VAT rates and exemptions to be aware of. This includes the reduced VAT rate of 5% and the zero rate (0%).

There are two other categories that the supplies of goods and services can fall under:

• Exempt – where no VAT is charged on the supply. Examples of exempt items include the provision of insurance, postage stamps and health services provided by doctors. If a business only sells VAT-exempt goods and services, they cannot register for VAT.
• Supplies that are 'outside the scope' of the UK VAT system altogether. These supplies are beyond the realm of the UK VAT system, and you cannot charge or reclaim VAT on these supplies. Examples include goods or services you buy and use outside of the UK, statutory fees (such as the London Congestion Charge) and goods you sell as part of a hobby.

If a business has made an error in charging VAT, then this needs to be corrected. The timing and amount of an error can impact on how the issue is resolved.

There are also penalties if you charge VAT to your customers before you are officially VAT registered. VAT registration is only required for eligible businesses earning more than £90,000 per year although businesses under the threshold can voluntarily apply for a VAT registration.

Paying Corporation Tax? Always use the correct reference or risk delays and penalties.

To pay Corporation Tax via online or telephone bank transfer, you can use either a UK or overseas bank account.

UK Bank Accounts

You can transfer funds using Faster Payments, CHAPS, or Bacs, either online or by calling your bank. Faster Payments usually reach HMRC on the same or next day (including weekends), CHAPS payments arrive the same working day if made within your bank’s cut-off time, and Bacs payments typically take up to 3 working days.

Use the account details provided in your HMRC ‘notice to deliver your tax return’ or reminder. If unsure, use one of the following:

• HMRC Cumbernauld
  • Sort code: 08 32 10
  • Account number: 12001039
• HMRC Shipley
  • Sort code: 08 32 10
  • Account number: 12001020

Overseas Bank Accounts

You can also pay from an overseas account using:

• HMRC Cumbernauld
  • IBAN: GB62 BARC 2011 4770 2976 90
  • BIC: BARCGB22
• HMRC Shipley
  • IBAN: GB03 BARC 2011 4783 9776 92
  • BIC: BARCGB22

You must ensure to include your 17-character Corporation Tax payment reference number for the correct accounting period. This reference changes each year so it is important to use the up-to-date reference number. Using the wrong one can delay your payment. You can find it in your company’s HMRC online account or on your ‘notice to deliver your tax return’ or on any reminders from HMRC.

Running a small business comes with plenty to juggle, and while insurance might not be the most thrilling task, it is absolutely essential. There is one policy you are legally required to have: employers' liability insurance (EL). If you employ anyone, EL covers legal and compensation costs if someone falls ill or gets injured at work. Missing it could cost you a hefty £2,500 per day in penalties.

Beyond what is required, there are a number of other smart protections to think about:

• Public liability insurance (PL) protects against claims from members of the public, for instance, if someone has an accident at your premises or your team accidentally damages someone's property. Many clients or suppliers will require proof of this cover before doing business.
• Contents and portable equipment insurance covers your essential business gear, such as furniture on-site or gadgets you take out (laptops, tablets, smartphones), in case of theft, fire, flood, loss, or damage.
• Professional indemnity insurance (PI) is vital if you offer expertise or advice. It covers you if a client suffers a financial loss because of something you did or did not do. Many clients expect this sort of protection before hiring you.
• Directors’ and officers’ liability (D&O) protects company leaders personally if there is a claim against them, such as breaches of health and safety laws, pension mismanagement, or financial errors.
• Cyber liability insurance is increasingly important in the digital world. It helps cover the costs of data breaches or cyber-attacks, including claims, compensation, and even IT or legal support.

From 13 October 2025, access to Companies House WebFiling will require GOV.UK One Login. This replaces the older Government Gateway sign-in and is part of the wider move towards a single, more secure login across government services.

When you next log into WebFiling after that date, you will be prompted to connect your existing account to GOV.UK One Login. Without doing so, you will not be able to file company documents. This shift follows the earlier transition of the “Find and update company information” service in 2024.

The new login system provides additional benefits. It brings stronger security through two-factor authentication, reducing the risk of fraud and misuse. It also allows you to use one set of login details for multiple government services, cutting down on the need to manage different usernames and passwords. Over time, GOV.UK One Login will replace all other government login systems.

To prepare for the change, users should check that their WebFiling email address is up to date and accessible. If they also use the “Find and update company information” service, they should ensure both accounts use the same email address. It may be worth creating a GOV.UK One Login in advance using that same email. Companies House is also advising that users review and clean up their “My companies” list to remove any businesses they no longer file for.

Looking further ahead, identity verification becomes compulsory from 18 November 2025 for all new and existing directors and Persons with Significant Control. This can be completed voluntarily now via GOV.UK One Login or, alternatively, through an authorised agent.

In short, from mid-October WebFiling accounts must be connected to GOV.UK One Login. Preparing early will help avoid delays and ensure users are ready for the new identity checks that follow in November.

1 October 2025 – Due date for Corporation Tax due for the year ended 31 December 2024.

19 October 2025 – PAYE and NIC deductions due for month ended 5 October 2025. (If you pay your tax electronically the due date is 22 October 2025.)

19 October 2025 – Filing deadline for the CIS300 monthly return for the month ended 5 October 2025. 

19 October 2025 – CIS tax deducted for the month ended 5 October 2025 is payable by today.

31 October 2025 – Latest date you can file a paper version of your 2024-25 self-assessment tax return.

1 November 2025 – Due date for Corporation Tax due for the year ended 31 January 2025.

19 November 2025 – PAYE and NIC deductions due for month ended 5 November 2025. (If you pay your tax electronically the due date is 22 November 2025.)

19 November 2025 – Filing deadline for the CIS300 monthly return for the month ended 5 November 2025. 

19 November 2025 – CIS tax deducted for the month ended 5 November 2025 is payable by today.

New rules mean late VAT filings and payments now trigger points, fines and interest charges.

The VAT late filing penalties regime changed for accounting periods beginning on or after 1 January 2023. Under the new system, there are now distinct and separate penalties for late filing of VAT returns and for the late payment of VAT liabilities.

The revised system operates on a points-based approach. A taxpayer receives one penalty point for each VAT return that is submitted late. Once a specific threshold of points is reached, a financial penalty of £200 is charged and the taxpayer is notified.

The penalty thresholds based on VAT return frequency are as follows:

• For monthly VAT returns, the threshold is five penalty points.
• For quarterly VAT returns, the threshold is four penalty points.
• For annual VAT returns, the threshold is two penalty points.

For example, a business that files VAT returns on a quarterly basis will receive a £200 penalty once it accumulates four late submission points. To remove the penalty points and return to a clean compliance record, the taxpayer must submit all VAT returns on time for a continuous period of twelve months. There are also statutory time limits after which a penalty point cannot be issued for a particular late return.

Late payment penalties are applied separately. If VAT remains unpaid between 16 and 30 days after the due date, a first penalty of 2% of the outstanding tax is charged. If the VAT is still unpaid 31 days or more after the due date, a second penalty of 4% of the outstanding amount applies.

In addition, late payment interest is charged from the day payment becomes overdue until it is paid in full.

Gifting assets can cut inheritance tax, but traps like “gifts with reservation of benefit” may undo the plan.

The majority of gifts made during a person's lifetime are not subject to tax at the time they are made. These lifetime transfers are known as "potentially exempt transfers" (PETs). A PET becomes fully exempt from Inheritance Tax if the individual making the gift survives for more than seven years after the transfer.

If the donor dies between three and seven years after making the gift, taper relief may apply, which reduces the amount of tax payable. The effective rates of tax on the excess over the nil-rate band for PETs are as follows:

• 0 to 3 years before death: 40%
• 3 to 4 years before death: 32%
• 4 to 5 years before death: 24%
• 5 to 6 years before death: 16%
• 6 to 7 years before death: 8%

However, different rules apply if the person making the gift retains some benefit or enjoyment of the asset. This typically occurs when the donor does not relinquish full control over the asset, and the transfer is made with a reservation of benefit. These are referred to as ‘gifts with reservation of benefit’ (GWROBs).

A common example is when a person gifts their home to their children but continues to live in it rent-free. In this case, HMRC is likely to argue that the donor’s position has not changed in substance, and that the arrangement constitutes a GWROB. If this is the case, HMRC will not treat it as a valid gift for inheritance tax purposes, and the property would remain part of the donor’s estate, even if they live for more than seven years after making the transfer.

A GWROB can usually be avoided in these situations if the donor pays full market rent for their continued use of the asset.

Gift Hold-Over Relief is a form of Capital Gains Tax (CGT) relief that allows you to defer paying CGT when certain assets, such as qualifying shares, are given away or sold for less than their market value, typically to benefit the recipient.

Instead of paying tax at the time of the gift, the gain is "held over" and passed on to the person receiving the asset. This reduces their base cost for CGT purposes, meaning the tax is only due when they eventually sell or dispose of the asset.

The individual making the gift will not usually have to pay CGT, as long as the transfer qualifies. However, CGT may still apply if the asset is sold at an undervalue rather than gifted outright. Transfers between spouses or civil partners are generally exempt from CGT.

A joint claim for the relief must be submitted by the giver and the recipient of the business asset gift.

To claim Gift Hold-Over Relief on business assets, you must meet all of the following:

• Be a sole trader, a business partner, or hold at least five percent of the voting rights in a company (your personal company).
• The assets must have been actively used in your business or in your personal company.

If the asset was only partly used for business purposes, partial relief may still be available.

To qualify for the relief when giving away shares, the shares must be in a company that is either:

• Not listed on any recognised stock exchange, or
• Your personal company.

In addition, the company must be primarily involved in trading activities, such as supplying goods or services. Companies that are mainly engaged in non-trading activities, such as investment, will generally not qualify.