Tax Code Guide
900L
Tax Code 900L Explained
What does this code mean?
900L means your tax-free Personal Allowance is £9,000. This significant reduction from the standard £12,570 suggests HMRC is accounting for substantial untaxed income or benefits. Common causes include a large company car benefit, significant underpayment from previous years, or multiple sources of untaxed income.
Who gets this code?
Employees with high-value company cars, large benefit packages, or significant prior-year underpayment adjustments.
Is it correct?
Check your latest P45 or Payslip to see if this matches your current situation.