payroll.gross-to-net Unreviewed
A UK payslip for one pay period: gross pay, pension, PAYE tax, National Insurance, student loans and net pay.
grossToNet in TypeScriptTagged national-insurance
3 capabilities
payroll.national-insurance Unreviewed
Employee and employer Class 1 National Insurance for one payment by category letter, exact percentage method.
nationalInsurance in TypeScript
validation.uk-ni-number
Check a UK National Insurance number's format and HMRC's disallowed prefix letters, and normalise it.
validateUkNiNumber in TypeScript