The Tax Faculty highlights the key deadlines and dates for tax practitioners during 2025.
Personal tax
| Date | Deadlines | Changes to tax system |
|---|---|---|
| 31 January | ITSA: deadline for online submission of self assessment (SA) tax returns for tax year ended 5 April 2024. ITSA: deadline for paying SA ‘balancing payments’ for tax year ended 5 April 2024 and the first SA payment on account for tax year ended 5 April 2025. ITSA: deadline to amend a 2022/23 tax return. ITSA: deadline to file an outstanding 2022/23 return to avoid a further tax-geared penalty. Tax credits: last day to renew tax credits for 2024/25 (if the 31 July 2024 deadline was missed and the claimant can show good cause) or to provide final income figures for 2023/24 (if renewal was done by 31 July 2024 using an estimate). Trusts: deadline for registering trusts on HMRC’s Trust Registration Service (TRS) if the trust has not been required to register previously, it was created before 6 April 2021, and:
Trusts: deadline for updating the TRS where there was a tax consequence in 2023/24 and a notifiable change before 6 April 2024 to additional information taxable trusts are required to provide. Tax consequences include income tax, CGT, IHT, SDLT, SDRT, LBTT and LTT. If there is no tax consequence, then an update is required by 31 January after the end of the tax year in which the trustees do have a UK tax liability. Changes are possible on a voluntary basis. |
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| 1 February | ITSA: penalty charged where 2023/24 SA tax return was not filed on time and was issued before 1 November 2024. Automatic £10 daily penalties apply to returns filed on paper on or after today (where the filing date was 31 October). ITSA: further late filing penalties apply to outstanding 2022/23 tax returns. For returns filed online, the further penalty is the greater of £300 or a percentage of the tax showing on the return. |
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| 2 February | ITSA: third late payment penalty due of 5% of any 2022/23 income tax, CGT and class 2 and 4 NIC due on 31 January 2023 that is not paid by today. |
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| 1 March | ITSA: 5% penalty imposed on 2023/24 income tax, CGT and class 2 and 4 NIC not paid by today. The penalty can be avoided if a time to pay arrangement is agreed in advance. |
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| 31 March | ATED: deadline to amend returns and pay any outstanding tax for the year 1 April 2023 to 31 March 2024. |
SDLT: temporary residential rates of SDLT introduced by previous government in 2022 withdrawn. |
| 5 April | Last day of the 2024/25 tax year: deadline for various tax claims and elections. CGT: last day to make disposals to use the 2024/25 CGT exemption. IHT: deadline for utilising IHT exemptions for 2024/25 (and any excess from 2023/24). Pensions: deadline to make a contribution to qualify for tax relief in 2024/25. |
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| 6 April | First day of the 2025/26 tax year. |
Abolition of special tax rules for furnished holiday lets across a number of taxes, including income tax and CGT. Rules applying to individuals not domiciled in the UK abolished and replaced with a residence-based regime. Scottish income tax: changes made to the bands for the starter, basic and intermediate rates. CGT: rates of CGT increased for gains attracting business asset disposal relief or investors’ relief (from 10% to 14%) and lower and higher rates for carried interest gains replaced with a flat rate of 32%. |
| 30 April | ATED: deadline to submit returns and pay the tax for the year 1 April 2025 to 31 March 2026. If a relief applies, this is also the deadline to submit a relief declaration return. These returns are based on the 1 April 2022 revaluation if the property was held on 1 April 2022 and a revaluation trigger has not occurred since that date. |
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| 1 May | ITSA: further late filing penalties apply to outstanding 2023/24 tax returns. Automatic £10 daily penalties apply for returns filed online on or after today. For returns filed on paper, the further penalty is the greater of £300 or 5% of the tax showing on the return. |
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| 15 June | US tax: deadline for US expatriates to file 2024 US federal tax returns if they have not obtained a filing extension. If more time is needed, an extension can be obtained to 15 October 2025. If tax is due, interest accrues from 15 April 2025 until the tax is paid. | |
| 5 July | Non-resident landlords: deadline for 2024/25 returns of rent paid by agents to non-resident landlords and of tax deducted by tenants from rents paid direct to non-resident landlords. | |
| 31 July | ITSA: deadline for second SA payment on account for tax year ended 5 April 2025. | |
| 1 August | ITSA: further late filing penalties apply to outstanding 2023/24 tax returns. For returns filed online, the further penalty is the greater of £300 or 5% of the tax showing on the return. ITSA: a second late payment penalty due of 5% of any 2023/24 income tax, CGT and class 2 and 4 NIC due on 31 January 2025 that is not paid by today. |
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| 5 October | ITSA: deadline to notify chargeability for income tax/capital gains tax for 2024/25 if not registered for self assessment. Complete form CWF1 for self-employment or form SA1 for non self-employed income or form SA401 for partners. This requirement also applies to trustees and any other persons potentially within ITSA. | |
| 6 October | Pensions: deadline for pension administrators to give a pension savings statement to scheme members if their pension inputs in the scheme in 2024/25 exceed the annual allowance. | |
| 15 October | US tax: deadline for US expatriates to file 2024 US tax returns if they have obtained a filing extension. | |
| 31 October | ITSA: deadline for paper submission of SA tax returns for the tax year ended 5 April 2025 to be received by HMRC. Returns filed after this date should be filed online to avoid a late filing penalty. Note that it is not possible to displace a paper return that has been filed late by filing online. | |
| 1 November | ITSA: further late filing penalties apply to outstanding 2023/24 paper tax returns. The further penalty is the greater of £300 or a percentage of the tax showing on the return. | |
| 30 December | ITSA: deadline for online submission of SA tax returns for tax year ended 5 April 2025 for HMRC to collect tax through PAYE codes where the taxpayer owes less than £3,000. |
Business tax
| Date | Deadlines | Changes to tax system |
|---|---|---|
1 January |
VAT: VAT charged on private school fees paid in relation to terms starting on or after 1 January 2025. | |
| 31 January | Business tax: deadline for intermediaries with a worker providing services to small clients outside of the public sector to make corrections to the 2023/24 employer return and pay outstanding PAYE and class 1 NIC to qualify for the concession under which penalties are not charged for failing to make final returns by the normal due date. CTSA: deadline for returns for accounting periods ended 31 January 2024 to reach HMRC. |
Deadline for submitting a digital platform report for the year to 31 December 2024. |
| 14 February | NIC: last day HMRC will accept an application to defer class 1 NIC for 2024/25. Applications made after that date and before 6 April 2025 will only be considered by HMRC with the agreement of the employer(s). | |
| 28 February | CTSA: deadline for returns for accounting periods ended 28 February 2024 to reach HMRC. | |
| 31 March | Company tax: final date for reclaim of tax paid by a close company on a loan to a participator if loan repaid during the financial year ended 31 March 2021. CTSA: deadline for returns for accounting periods ended 31 March 2024 to reach HMRC. |
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| 1 April | Abolition of special corporation tax rules for furnished holiday lets. From 1/6 April, HMRC will consider a vehicle’s primary suitability at the time it was made, with reference to the vehicle as a whole, in determining if the vehicle is a car or a goods vehicle for some direct tax purposes. This is likely to mean that most double cab pick-ups will be treated as cars from 1/6 April, subject to transitional arrangements. |
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| 5 April | Employers: deadline to register to payroll benefits from 2025/26. NIC: deadline to pay voluntary class 2 for 2016/17, 2017/18 and 2018/19 (deadline for 2016/17 and 2017/18 extended). |
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| 6 April | NIC: the rate of secondary NIC increased to 15%; secondary threshold reduced to £5,000; and employment allowance increased to £10,500. | |
19 April |
Employers: deadline to make a final payroll report for 2024/25 using a full payment submission (FPS). | |
30 April |
CTSA: deadline for returns for accounting periods ended 30 April 2024 to reach HMRC. | |
| 31 May | Automatic exchange of information: returns due for calendar year 2024 in respect of United States Foreign Account Tax Compliance (FATCA), Crown Dependencies and Overseas Territories (CDOT) and the Common Reporting Standard (CRS). PAYE: last date for giving a form P60 for 2024/25 to each relevant employee who was working for you on 5 April 2025, together with details of payrolled benefits in kind. Employers: deadline for employees to make good the cost of payrolled private fuel and private credit card expenditure in 2024/25. CTSA: deadline for returns for accounting periods ended 31 May 2024 to reach HMRC. |
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| 30 June | CTSA: deadline for returns for accounting periods ended 30 June 2024 to reach HMRC. | |
| 4 July | PAYE: deadline for employee to reimburse payment made by employer on account of tax in 2024/25 (eg, on employment-related securities). If no reimbursement is made or if it is made after this date, a further tax charge arises. | |
| 5 July | PAYE: last date for agreeing PAYE settlement agreements for 2024/25. | |
| 6 July | PAYE: deadline for filing forms P11D, P11D(b) or substitutes for the tax year ending 5 April 2025. PAYE: last date to give forms P11D to relevant employees. Employers: deadline to register an employee share scheme that was in place during 2024/25 and to self-certify the scheme if it is a tax-advantaged scheme. Schemes in place prior to 2024/25 should already have been registered. Employers: deadline for filing employment-related securities returns for 2024/25. Employers: deadline to file the 2024/25 report of termination payments and benefits where noncash benefits are included in an employee termination package. No report is required where the total value of the settlement is below £30,000. Employers: deadline for employees to make good the cost of non-payrolled benefits in kind provided in 2024/25. This deadline does not apply to beneficial loans. Employers: deadline for taxed award scheme providers in 2024/25 to provide form P443 certificates to recipients showing details of the award and tax paid under a higher rate scheme and make returns of awards made to HMRC on forms P35(TAS) and P440. This is generally used by third parties who provide taxable benefits to someone else’s employee. Employers: deadline for a close company to elect that all beneficial loans to a director be treated as a single loan for calculating 2024/25 benefits-in-kind (s187, ITEPA 2003). |
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| 7 July | Employers: deadline to make a return of relevant benefits provided in 2024/25 to retired employees under an employer-financed retirement benefits scheme. Such benefits are taxable unless provided from a registered pension scheme or covered by one of the exemptions. | |
| 19 or 22 July | PAYE: deadline to pay outstanding class 1A NIC for tax year ended 5 April 2025. Postal payment must reach the HMRC Accounts Office by 19 July and electronic payments be cleared in HMRC’s bank account by 22 July. | |
31 July |
CTSA: deadline for returns for accounting periods ended 31 July 2024 to reach HMRC. | |
| 18 or 21 August | Employers: 5% penalty applies to 2024/25 class 1A NIC not paid by 18 August for payments by cheque and 21 August for electronic payments. | |
| 31 August | CTSA: deadline for returns for accounting periods ended 31 August 2024 to reach HMRC. | |
| 30 September | CTSA: deadline for returns for accounting periods ended 30 September 2024 to reach HMRC. | |
| 19 or 22 October | Employers: deadline for paying PAYE settlement agreement tax/class 1B NIC liabilities for 2024/25. Postal payments must reach HMRC Accounts Office by 19 October and electronic payments be cleared in HMRC’s bank account by 22 October. | |
| 31 October | CTSA: deadline for returns for accounting periods ended 31 October 2024 to reach HMRC. | |
| 18 or 21 November | Employers: 5% penalty applies to 2024/25 PAYE settlement agreement tax/class 1B NIC not paid by 18 November for payments by cheque and 21 November for electronic payments. | |
| 30 November | CTSA: deadline for returns for accounting periods ended 30 November 2024 to reach HMRC. | |
| 31 December | CTSA: deadline for returns for accounting periods ended 31 December 2024 to reach HMRC. |
