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Enter your first and second job salaries to see your tax breakdown.

Second Job Tax · Common Questions

Why is my second job taxed more?

Your personal allowance (£12,570) is allocated to your main job. Your second job income is taxed from the first pound, usually at the basic rate (20%) using a BR tax code. If your combined income exceeds £50,270 some second job income may be taxed at 40%.

What tax code should my second job have?

Most people should have a BR code on their second job (all income taxed at 20% with no personal allowance). If your first job already takes you into the higher rate band, your second job should use a D0 code (40%). Using 1257L on a second job would mean you get the personal allowance twice and will owe tax at year end.

Do I pay National Insurance on a second job?

Yes. Each employment is assessed for NI independently. However, for part-time second jobs, your weekly earnings from that job may fall below the primary threshold (£242/week) so you may pay little or no NI on the second job.

What if I've been given the wrong tax code?

If your second job has code 1257L (which gives you the full personal allowance again), you are underpaying tax and will receive a bill via Self Assessment or a new PAYE code. Contact HMRC or your employer to correct it.

For informational purposes only · Not financial advice · Verify your tax code with HMRC or your employer