Please head over to the link below:
Tax is controlled by HMRC, at Arc we add in your NI number when you start and then your tax code is completed from your onboarding form. Once entered within our payroll system, tax codes are then checked and updated automatically at 1am every day and applied.
If you believe your tax code to be incorrect, you will need to contact HMRC.
Some useful articles:
https://www.gov.uk/tax-codes/what-your-tax-code-means
https://www.gov.uk/tax-codes/updating-your-tax-code
https://www.gov.uk/check-income-tax-current-year
The quickest way is to login online and update your tax code: https://www.gov.uk/personal-tax-account
However, you can also call them on:
Telephone:
Outside UK:
+44 135 535 9022
Please note: Arc do not have the money in which you have been taxed. If you have been taxed and this money has been deducted, if you are owed this back. HMRC will then reissue this to you on another pay day- we are unable to know when this may happen.