Self employed but also part time worker status

I'm a self-employed musician and my self employment includes performance and private teaching. I also strarted a part-time role in a school where I'm classified as a worker in October 2023. I have two queries - it looks like I'll need to complete self employment tax return and also the employment page - is that correct? And I had assumed I would not need to pay tax on my income from the part-time role because it is taxed at source. However, when I logged into the Gov.uk dashboard, that shows no tax or NI deductions even though I have a note from the school saying those are deducted. So do I enter that in the employment page as income even though it has already been taxed? Many thanks in advance.

Unfortunately, HMRC is unable to provide specific or tailored advice through the Online Community Forums and cannot comment on any form of calculation, example or scenario as we may not be in possession of all the relevant information.
 

The HMRC Customer Forum is for general queries only and is intended to help our customers self-serve. We are unable to provide financial advice or further interpretation of the guidance provided on GOV.UK. You can use the guidance here to Check if you need to send a Self Assessment tax return - GOV.UK (www.gov.uk)

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