How to inform HMRC regarding my second job

Hi, I am currently working as a Band 6 NHS employee which is my primary job. I will soon join as a delivery guy for one of the food delivery organizations. I understand, there is no payslip for the food delivery organization and they credit our weekly earnings as a direct transfer to my bank account. Considering these earnings as additional income, how do I inform HMRC about this second job, and how will I pay the tax for this second earnings? Thank you

Hi Jaison,
You'll want to confirm with the food delivery company whether tax is being deducted from your wages with them.
If no tax is being deducted, you'll have to register for Self Assessment, and declare those earnings by filing a Self Assessment tax return.
You can find more information here:
Self Assessment tax returns
Thank you.