Jessicawng242

Hi i have a question, Im new to the tax things as i have only started working more hours. So i have a zero hour contract at one job and starting a 15hr contrat in the new one. Both individualy pay under £12570 but combined is around £13000. How will i get taxed? Do i get taxed for both of them or just one of them? And should i let both employers known of my other job?