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.

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.

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.

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.

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.