Hi Saulmcg,
The standard Personal Allowance is £12,570, which is the amount of income you do not have to pay tax on. If you have not earned over this amount within the current financial year, across all of your employments, any tax paid will be refunded to you.
It is most likely that your first job has all of these tax-free allowances allocated to it, if you would like us to spread your allowances across both of your employments, or would like additional advice, contact us by webchat or phone via https://
Income Tax: general enquiries
Thank you.