
Important Tax Deadlines & Events (Updated For 2026)
It is crucial to stay on top of key tax dates to keep your financial affairs in order. Here’s a friendly reminder of the important tax deadlines this year.
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It is crucial to stay on top of key tax dates to keep your financial affairs in order. Here’s a friendly reminder of the important tax deadlines this year.

Discover the suggested reimbursement rates for employees’ private mileage using their company car.

Now is the perfect time to review your finances and make sure you’re making the most of available tax reliefs and allowances.

It is that time of year again for staff parties and annual functions, so it is important to make sure you record it properly.
At this time of year we think about New Year’s resolutions. It is also a good time to start planning your tax affairs before the end of the tax year on 5th April.
The Capital gains tax annual exempt amount reduces from £12,300 to just £6,000 for gains made in 2023/24. Remember that the 2022/23 allowance is lost if not used by 5 April 2023 and you might want to consider bringing forward disposals of chargeable assets where possible.
The VAT registration threshold continues to be frozen at £85,000, instead of increasing each year in line with inflation. This will remain the case until March 2026.
For those provided with an electronic or ultra-low emission company car (emitting less than 75g of CO2 per kilometre), there will be annual increases in the benefit-in-kind percentages, and therefore the taxes paid
Many were predicting that the rates of Capital Gains Tax (CGT) paid by individuals would increase, possibly to align with the rates of income tax.
One of the few changes announced on 23 September that has not been reversed concerns Stamp Duty Land Tax (SDLT) in England and Northern Ireland.
Employers will be relieved that there are no more changes to National Insurance Contribution rates and bandings or therefore consequential payroll software changes!
For all individuals, the first £2,000 of dividend income is taxed at 0%. The government have now decided that this ‘dividend allowance’ of £2,000 will be reduced to £1,000 in the 2023/24 tax year and then again to just £500 in the 2024/25 tax year.
The Government will continue to support business capital investment by keeping the level of the 100% Annual Investment Allowance (AIA) at £1 million.
The 23 September Fiscal Statement included the unexpected news that the “off-payroll working” (OPW) rules would be scrapped from 6 April 2023.
On 23 September 2022, it was announced that the Stamp Duty Land Tax (SDLT) nil-rate threshold on residential property would be increased from £125,000 to £250,000.

The £1 million Annual Investment Allowance has now been made permanent. You can claim capital allowances when you buy assets that you keep to use in your business, for example:

The Government has announced two changes to the tax advantaged Company Share Option Plan scheme. There is currently a maximum employee share option limit based on market value at grant of £30,000.

The much criticised “off-payroll” working rules were introduced for the public sector from 6 April 2017 and then extended

The Government is in discussion with 38 local authority areas in England to set up ‘Investment Zones’ in specific sites within their area.

In response to a recommendation by the Office of Tax Simplification the Government have introduced draft legislation for inclusion in Finance Bill 2023 that extends the no gain/no loss rule when a couple separate.

The changes to the basis of assessment of self-employed profits are scheduled

The HSE advice has recently changed, and employers must now carry out an individual risk assessment for pregnant workers and new mothers.

With ever-increasing supplier prices, a rise in interest rates and a looming recession, managing your business’s cash and understanding

Households need to brace for a prolonged period of high inflation and further interest rate rises. The Governor of the Bank of England, Andrew Bailey, has warned that he will take forceful action to tackle inflation,

A need for additional income is motivating people to start their own businesses. As UK inflation hits a 40-year high of over 9%, more and more people are starting their own businesses.