Tax Code Guide
0T-M1
Tax Code 0T M1
What does this code mean?
0T M1 is the monthly equivalent of 0T W1 and represents the most severe emergency tax situation for monthly-paid workers. With no Personal Allowance and non-cumulative calculation, you will overpay tax substantially. You should provide your new employer with your P45 from your previous job and contact HMRC to get your correct code issued as quickly as possible.
Emergency Tax Warning
This is often an emergency or temporary tax code. You might be paying too much tax while on this code.
Who gets this code?
Monthly-paid new starters without P45 documentation. Very common when starting a first job or returning from abroad.
Is it correct?
Check your latest P45 or Payslip to see if this matches your current situation.