What happens if you don't have a P45 in the United Kingdom? 22 Mar 2023
If you don't have a P45 in the UK, you should inform your new employer as soon as possible. Your new employer will need to obtain information about your tax code and National Insurance number to set up your payroll.
If you do not have a P45, your new employer may ask you to complete a starter checklist or a new employee form to obtain this information. This will help your employer to calculate your tax and National Insurance contributions correctly.
If you have lost your P45 or did not receive one from your previous employer, you can contact HM Revenue and Customs (HMRC) to obtain a new one. You can do this by calling the HMRC helpline or by using your personal tax account online. If you lost or your past employer didn't provides you P45 then you can generate P45 online by just providing your pay details. Order P45 Online
It is important to ensure that your employer has the correct information about your tax code and National Insurance number to avoid any underpayment or overpayment of tax.
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