2022/23 Tax Year - Key Dates

5 April 2023 - end of 2022/23 tax year.

31 July 2023 - second payment on account for 2022/23.

31 October 2023 - deadline to submit a paper tax return

31 December 2023 - deadline for the tax to be paid through PAYE tax code

31 January 2024 - tax return deadline for 2022/23 tax return.

31 January 2024 - balancing payment for 2022/23 & first payment on account for 2023/24.

Your self-assessment tax return is due by 31 January following the end of the tax year which ends on 5 April. For example, for the tax year from 6 April 2022 to 5 April 2023 (i.e. 2022/23), the tax return and any tax payable would be due by 31 January 2024.

We would advise you to provide us with your return information as soon as possible so that we can prepare your tax return in a timely manner for your review and approval.

The earlier that you are able to provide us with your information, the earlier we should be able to give you certainty over your finances, speed up any tax repayment that may be due to you, and advise you of any tax payments becoming due.

This checklist has been provided to help you gather all the information which you may need to complete your tax return. This is only a guide and is not an exhaustive list. If you have any questions, please drop us an email at tax@martaxaccountants.com


Employment income

Please provide us the following information where relevant:

  • P60s and March payslips
  • P45s if employment ceased during the tax year
  • P11Ds if applicable
  • If you have been issued with P45 and student loan deductions have been made by your former employer, please provide the details of student loan deuductions made by your employer up to the date of your P45
  • Any PAYE coding notices recevied for the tax year

Self employed income

Please provide us the following information where relevant:

  • Start date of your self employment
  • Please also advise the date if self employment ceased during the year
  • If you use any online bookkeeping software for your sole trader accounts, please provide us the access to the software when records are up to date
  • If you use a spreadsheet to record your sole trader income and expenses, please email us the spreadsheet or upload this to our online portal

UK Property income

Please provide us the following information where relevant:

  • Number of rental properties
  • State whether these are owned/let solely or jointly
  • Whether the properties are interest only or repayment mortgage
  • Please provide the details of your rental income and expesnes in a spreadsheet
  • Certificate of mortgage interest paid for the tax year

Savings and investment income

Please provide us the following information where relevant:

  • Interest income from banks, building societies, and other institutions
  • Dividends from shares

Foreign income

UK residents are generally taxable on their worldwide income. Please provide the information if you have any foreign source of income.

Capital gains

Please provide us the following initial information in relation to capital disposals where applicable:

  • Any contracts related to sales and purchase
  • Completion statements for both sales and purchases
  • Any other information

Other information

Please provide us with the following information where relevant in relation to your circumstances:

  • Contributions made to personal pension scheme
  • Did you have a student loan payable during the tax year? If so, please confirm whether it was a Plan 1 or Plan 2.
  • If either of you or your spouse received child benefit during the tax year, please provide the following information:
    • Number of children for whom you received the benefit
    • The total amount of child benefit received during the year
  • Are you married or in a civil partnership? If yes, does your spouse earns less than the personal allowances for the tax year?
  • Please provide the details of any payments made to charities under Gift Aid schemes

Any other information

Any other information related to your tax returns