Thinking of a second job? National Insurance is worked out separately for each job, while Income Tax and student loan look at your combined income. Here's the full picture.
Not overall. You are taxed on your combined income just as you would be on a single salary. It can feel like more because your Personal Allowance is usually applied to only one job, so the second job is often taxed from the first pound.
National Insurance is charged separately on each job rather than combined, so two jobs can pay slightly less NI than a single job on the same total, because each job gets its own threshold.
Often one job carries your full Personal Allowance and the other a BR (basic rate) code. If your main job pays less than £12,570 you may overpay, so the calculator shows your correct combined position to check against your payslips.
These results are estimates for general information only and are not financial advice. Check every figure yourself and seek appropriate advice from a qualified professional before making any decision. Read the full disclaimer.