View your tax code information
When you open the app, it will display the tax information Shared Services hold for you. This screen will provide you with an overview of historic changes to your tax code.
The top line will show your current information and any subsequent lines will show you any previous tax codes that we have held for you.
For all rows, you will see the following information:
- Tax Code – the tax code that was applied for the period
- Previous Pay – any previous pay for the tax year (from a P45)
- Previous Tax – any previous tax paid for the tax year (from a P45)
- Week1/Month1 – an indicator of if your tax code is marked for Week1/Month1 calculations or cumulative calculations
- Source – where the information on the entry came from
- Applied From – the date that a row was applied to your record

If you do not have the 'Edit Tax Details' button and believe your tax code is incorrect, please contact HMRC directly. You can reach HMRC through your personal tax account.
For more information on your personal tax account go to Gov personal tax account. If any changes are needed, HMRC will send them directly to Shared Services.






