Tax date
Friday, May 7, 2027

Fourth quarterly update due for MTD ITSA

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About this date

  • Period covered: 6 January – 5 April.
  • What to do: Submit your final quarterly update for the tax year. Review everything carefully — this forms the basis for your Final declaration.
  • Who this is for: Sole traders/landlords above the gross income threshold only.
  • Urgent
    Notice
    Reminder
    5
    Oct
    2026

    Deadline for Self Assessment registration to notify HMRC of Income/Capital Gains Tax

    The "Deadline for Self Assessment registration to notify HMRC of Income/Capital Gains Tax" refers to the final date by which individuals in the United Kingdom must register themselves for Self Assessment with HM Revenue and Customs (HMRC) to declare their Income Tax or Capital Gains Tax liabilities. This deadline is significant for individuals who have not previously registered for Self Assessment but have income or capital gains that require them to report and pay taxes. By registering before the deadline, individuals ensure compliance with HMRC regulations and avoid potential penalties for failing to notify HMRC of their tax obligations. It's important to note that the specific deadline for Self Assessment registration may vary depending on individual circumstances, and it's advisable to consult the latest HMRC guidelines or official resources to determine the exact date applicable to your situation.
    Urgent
    Notice
    Reminder
    5
    Oct
    2026

    Deadline to register with the HMRC if newly self-employed or receiving income from property

    Deadline to register with the HMRC if newly self-employed or receiving income from property
    Urgent
    Notice
    Reminder
    31
    Oct
    2026

    Deadline for postal submission of Self Assessment

    Deadline for postal submission of Self Assessment
    Urgent
    Notice
    Reminder
    2
    Nov
    2026

    Deadline for submitting a P46 (Car)

    The "Deadline for submitting a P46 (Car)" is the final date by which individuals or employers in the United Kingdom must submit the P46 (Car) form to HM Revenue and Customs (HMRC). The P46 (Car) form is used to report changes or updates related to company-provided cars and their associated tax implications. This includes situations such as when an employee starts using a company car, changes their car, or stops using a company car. Timely submission of the P46 (Car) form ensures compliance with HMRC regulations and helps ensure accurate tax calculations for both employers and employees. It is important to note that the specific deadline for submitting the P46 (Car) form may vary, so individuals and employers should consult the latest HMRC guidelines or official resources to determine the exact date for a particular tax year or reporting period.

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