What information will you need to include in your Self Assessment? 

The below is a list and summary of the information you might need to include in your income tax return.

NB - the below list is exhaustive and depending on your personal circumstances, there might be additional schedules of income or expenditure which you will need to include on your self assessment return - speak with us to determine if you might need to provide additional information.

Employment information

  • Form P60/P45 - your P60 is your end of tax year certificate which shows how your gross salary earnt and total tax and national insurance paid on this gross amount during the tax year.

  • Form P11d - benefits-in-kind (BIK) form - this form will be provided by your employer (if an employee) or by your payroll provider (if self employed). Your P11d shows the taxable value/cash-equivalent value of any benefits you receive from your employment during the tax year.

  • PAYE coding notices received relevant to the tax year - these notices will be provided by HMRC. Your PAYE coding notice determines your personal allowance level for the tax year.

  • Subscriptions to professional bodies which are paid personally - if you pay professional subscriptions through your business (i.e. not paid by you personally) then leave this field blank. Professional subscriptions are an allowable deduction for tax purposes and will decrease your tax bill.

  • Mileage claims for private car used for business purposes (please provide mileage rate(s) paid by the company) - if you receive reimbursement for business-related mileage expenses by your employer, then you will need to provide details of the claim (including the mileage amount and the applicable rate reimbursed by your employee per mile). You will be able to reclaim tax/reduce your tax bill if you claim mileage at a lower rate than allowed by HRMC (45p per mile for the first 10,000 miles and 25p per mile thereafter). You will be liable to pay the difference if your employer reimburses your mileage claims above the rates allowed by HMRC.

  • Exercised share option schemes - this is only relevant if you are a member of a registered share option scheme under your employment and you have exercised any amount of these options during the tax year.

Payments to a pension fund

  • You will receive tax relief for payments made to a pension scheme during the tax year.

Investments - interest

  • Bank or building society interest/notification - any interest received by your bank on savings (please indicate if received gross or net). National savings, bonds, government stock - please provide details of any interest/income earned on these savings instruments.

Investments - shareholdings

  • Dividend counterfoils - if you are a Director and are paid/pay yourself through a company by way of dividend, then please provide all dividend vouchers/details of any dividends paid during the tax year (not applicable to non-directors).

  • Stock broker schedules - if you have equity or other investments which are acquired, disposed and/or managed through a third party stock broker, you may have received a tax statement for your investments held with them. If you have received such a schedule, then please provide a copy of this to us (this schedule will provide details of any capital gains for the tax year, together with any fixed income returns, including details of foreign dividends and the tax which is deducted at source for these dividends (if any).

  • Purchase/sale notes or contracts, portfolio valuations - if you have disposed of equity or other investments during the year, then you will have received/have access to contract notes relating to the acquisition and disposal of these investments.

Read more about Capital Gains Tax:

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Although capital gains information is usually submitted to HMRC via your Self Assessment filing, the calculation of Capital Gains Tax, together with the rules, rates and allowances, completely differ from those applicable to Income Tax.

Read our Capital Gains section to learn more.

Land and property income

  • Income and expenditure details - you can provide details of property rentals received and any property costs incurred, or you may already engage a professional to prepare property accounts which will incude a statement of rental income.

  • Loan interest certificate - if you have a loan/mortgage which was used to help acquire a property from which you receive rental income, you will be able to deduct interest paid on this loan/mortgage which will reduce your tax bill.

  • Property purchase/sale completion certificate - if a property was acquired and/or sold in the tax year then details of the acquisition/sale will be required in order to compute any capital gains tax payable/any capital losses which can used to reduce future capital gains tax liabilities.

Pensions received

  • State pension - notification of amount (notify if weekly, monthly or 4-weekly) - if you receive a state pension you will be provided with a statement of amounts paid for the tax year.

  • Form P60 for private pension/annuity - like with your employment P60, if you are a member of private pension, you will receive an end-of-year certificate (P60) which provides details of payments made.

State benefits

  • Child benefit details (only if relevant income is in excess of £50,000) - if you have an income of between £50,000 and £60,000 a year, the amount of extra tax you'll have to pay will be 1 per cent of the amount of Child Benefit you get for every £100 of your income above £50,000.

  • Letter from DWP showing taxable benefit - like with your P11d (where you receive benefits under your employment), you will receive a letter from the Department of Work and Pensions (DWP) which includes details of any taxable state benefits.

  • Self employment (income NOT included in the business accounts) - if you operate a business as a sole trader, this will include any drawings you make from the business (monies drawn for personal use) during the tax year.

Other

  • State pension - notification of amount (notify if weekly, monthly or 4-weekly) - if you receive a state pension you will be provided with a statement of amounts paid for the tax year.

  • Form P60 for private pension/annuity - like with your employment P60, if you are a member of private pension, you will receive an end-of-year certificate (P60) which provides details of payments made.