• Employer Deadlines
  • Self Assessment Deadlines
  • December

    2025

    01.12.2025
    • Advisory Fuel Rates

      New Advisory Fuel Rates (AFR) for company car users apply from today. The rates can be found by visiting https://www.gov.uk/government/publications/advisory-fuel-rates

    19.12.2025
    • PAYE, Student loan and CIS deductions are due for the month to 5 December 2025

      This deadline is relevant to employers who have made PAYE deductions from their employees’ salaries and to contractors who have paid subcontractors under the CIS.

      Employers are required to make payment to HMRC of the income tax, national insurance and student loan deductions. Contractors are required to make payment to HMRC of the tax deductions made from subcontractors under the CIS.

      Where the payment is made electronically the deadline for receipt of cleared payment is 22nd December 2025.  In year interest will be charged if payment is made late. Penalties also apply.

  • December

    2025

    31.12.2025
    • Online filing deadline for submitting 2024/25 self assessment return if you require HMRC to collect any underpaid tax by making an adjustment to your 2025/26 tax code

      This deadline is relevant for those individuals who complete a self assessment tax return online and who are employees. Where you have an underpayment you may request that HMRC collect the tax outstanding by making an adjustment to your tax code for the year 2025/26.