Tax date
Monday, October 5, 2026

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

Save the date

Add this important tax date to your calendar or subscribe to our calendar.
Urgent
Notice
Reminder

About this date

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.

Related Resources

Urgent
Notice
Reminder
31
May
2026

Deadline for forms P60 to be issued to employees

The "Deadline for forms P60 to be issued to employees" is the final date by which employers must provide P60 forms to their employees in the United Kingdom. The P60 form is a summary document that outlines an employee's total income and tax deductions for a specific tax year. The deadline for issuing P60 forms is typically on or before the 31st of May following the end of the tax year (5th April). It is important for employers to meet this deadline to comply with HM Revenue and Customs (HMRC) regulations and ensure that employees receive the necessary information for their own tax obligations.
Urgent
Notice
Reminder
6
Jul
2026

Deadline for P11D, P11D(b) and Employment Related Securities to be submitted to HMRC

The "Deadline for P11D, P11D(b), and Employment Related Securities" is the final date for UK employers to submit these forms to HM Revenue and Customs (HMRC). P11D reports employee expenses and benefits, while P11D(b) summarizes employer's Class 1A National Insurance contributions. Employment Related Securities (ERS) form reports securities given to employees. Meeting this deadline ensures compliance, accurate tax calculations, and avoids late filing penalties. The deadline is typically on or before 6th July after the tax year ends (5th April). Check HMRC guidelines for exact deadlines.
Urgent
Notice
Reminder
6
Jul
2026

P11D Issuance Deadline

Detailed information pending.
Urgent
Notice
Reminder
22
Jul
2026

NI Contributions Deadline

Deadline for paying Class 1A National Insurance Contributions for benefits provided to employees

Speak to a Crunch advisor today

If you're unsure what level of support you need, our friendly team are on hand to help you pick the right package for you.