Key dates and deadlines to note

By Bishop Fleming

A round up of the evolving key deadlines and dates and other important dates.

The Spring Budget will be on 6 March 2024.

The Autumn Statement was on 22 November 2023

2024Deadline
Jan 1New, more generous tax credits for British film, TV and video game makers start today
Jan 1Holiday pay entitlement reforms start today
Jan 6Main rate of Employee NIC (Class 1 NICs) is cut by 2p from 12% to 10%  (NIC rates and allowances HMRC)
Jan 22New right to work checks employers must carry out to avoid a penalty.
Jan 31Deadline to pay and submit Self-Assessment Tax Returns for tax year ending 5 April 2023 (personal, trustee & partnership).
Jan 31First Payment on Account for Income Tax due for 2023/2024
Jan 31If you or your partner have an income above £50,000 and are claiming Child Benefit, you need to pay the High Income Child Benefit Charge by this date.
Jan 31Virtual witnessing of wills ends
Jan 31Deadline for trusts and estates with a tax liability for the first time in 2022/23, to register with HMRC’s Trusts Registration Service (and for others to update for any changes)
Feb 1Interest starts to accrue on any unpaid self-assessment tax liability due for 2021/22
Feb 14Deadline to apply for deferment of payment of Class 1 NICs (form CA72A) for 2023/24 (can be extended to 5 April 2024 where the employer agrees)
Mar 6Spring Budget
Mar 31Business Rates relief ends for Retail, Hospitality and Leisure sectors.
Mar 31Deadline for amending ATED return for the year ended 31 March 2023
Apr 1Financial Year 2024 begins
Apr 175% business rate discount for retail, hospitality, and leisure extended for another year. to 31 March 2025.
Apr 1R&D tax relief schemes merged into one scheme
Apr 1National Living Wage to rise to £11.44 per hour
Apr 1New rate of Plastic Packaging Tax
Apr 5Last day of the tax year to utilise any tax allowances
Apr 5Last day for employers to apply for payrolling benefits for tax year 2024/25
Apr 6New tax year 2024/25 begins
Apr 6The capital gains tax allowance halves from £6,000 to £3,000 
Apr 6New 45% and 48% income tax rates introduced in Scotland
April 6Start of new basis periods rules for sole traders & partnerships
Apr 6Abolition of pension lifetime allowance
Apr 6Class 2 NICs for self-employed abolished
Apr 6Class 4 NICs rate reduced to 8% on profits between £12,570 and £50,270. Rate remains at 2% on profits above £50,270
Apr 6Construction Industry Scheme (CIS) reforms to: ensure minor VAT compliance failures will not result in Gross Payment Status refusal or removalremove most payments made by landlords to tenants from the scope of the CIS
Apr 6Flexible working becomes a day one right for flexible working requests made on or after 6 April 2024. (Updated guidance)
Apr 30ATED returns and payments for 2024/25 due for properties held on 1 April 2024
May 31Deadline for employees to receive forms P60 for 2023/2024 
Jul 6Deadline for PAYE Settlement Agreements for 2023/2024
Jul 6Deadline for submission of forms P11D for 2023/2024
Jul 31Second Payment on Account due for Income Tax
Jul 31Recovery Loan Scheme ends.
Oct 31Deadline for submitting a paper Self-Assessment tax return
Dec 31Submit online personal tax return for 2023–24 if taxpayer wants HMRC to collect tax underpayment (below £3,000) through PAYE coding
2025 
Jan 23Latest day for a UK general election (Dissolution and Calling of Parliament Act 2022, section 4)  (See also the General Election timetable from the House of Commons Library)
Mar 31Last day of temporary reduction in Stamp Duty land Tax for the purchase of residential property in England. (Stamp Duty Land Tax (Temporary Relief) Act 2023).
Jun 30Mortgage Guarantee Scheme ends
2026 
April 6Making Tax Digital for Income Tax Self Assessment begins
Apr 6Payrolling benefits in kind. The government will mandate the reporting and paying of Income Tax and Class 1A NICs on benefits in kind via payroll software from April 2026.
2027 & beyondMaking Tax Digital for partnerships and companies – dates to be provided.
 The UK is to implement a new import carbon pricing mechanism by 2027 to support the decarbonisation drive.

Repeating deadlines

There are some ongoing deadlines of which individuals and businesses need to be aware.

Companies 
12 months after company’s year-endCorporation Tax and statutory accounts filing date with HMRC
9 months and 1 day after company’s yearendDue date for payment of any corporation tax liability
All businesses – monthly/quarterly 
7th of the monthVAT returns and payment due
14th of the monthCorporation tax quarterly instalment due
19th of the monthDue date for CIS, PAYE and NICs, if paying by cheque
22nd of the monthDue date for CIS, PAYE and NICs, if paying electronically
Individuals 
Within 60 days of completion of conveyanceReport and pay any CGT on the disposal of Uk property by a non-UK resident
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