Payslip Auditor

For HR and finance compliance teams. Paste 12 months of one employee's payslip data. We detect period-to-period variance over 5 percent, missing months, tax code changes, salary sacrifice toggles, NI category drift, P60 reconciliation gaps and PAYE deduction mismatches. UK 2026/27 PAYE rules.

P60 line 1 (Pay) for cross-check

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P60 tax for cross-check

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[
  {"period":"2026-04","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":0,"ytd_gross":3500,"ytd_tax":487,"ytd_ni":233,"tax_code":"1257L","ni_category":"A"},
  {"period":"2026-05","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":0,"ytd_gross":7000,"ytd_tax":974,"ytd_ni":466,"tax_code":"1257L","ni_category":"A"},
  {"period":"2026-06","gross":4200,"net":3010,"tax":720,"ni":275,"pension":210,"salary_sacrifice":0,"ytd_gross":11200,"ytd_tax":1694,"ytd_ni":741,"tax_code":"1257L","ni_category":"A"},
  {"period":"2026-07","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":0,"ytd_gross":14700,"ytd_tax":2181,"ytd_ni":974,"tax_code":"1257L","ni_category":"A"},
  {"period":"2026-08","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":0,"ytd_gross":18200,"ytd_tax":2668,"ytd_ni":1207,"tax_code":"1257L","ni_category":"A"},
  {"period":"2026-09","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":0,"ytd_gross":21700,"ytd_tax":3155,"ytd_ni":1440,"tax_code":"BR","ni_category":"A"},
  {"period":"2026-10","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":0,"ytd_gross":25200,"ytd_tax":3642,"ytd_ni":1673,"tax_code":"BR","ni_category":"A"},
  {"period":"2026-11","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":150,"ytd_gross":28700,"ytd_tax":4129,"ytd_ni":1906,"tax_code":"BR","ni_category":"A"},
  {"period":"2026-12","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":150,"ytd_gross":32200,"ytd_tax":4616,"ytd_ni":2139,"tax_code":"BR","ni_category":"A"},
  {"period":"2027-01","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":150,"ytd_gross":35700,"ytd_tax":5103,"ytd_ni":2372,"tax_code":"BR","ni_category":"A"},
  {"period":"2027-02","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":150,"ytd_gross":39200,"ytd_tax":5590,"ytd_ni":2605,"tax_code":"BR","ni_category":"B"},
  {"period":"2027-03","gross":3500,"net":2680,"tax":487,"ni":233,"pension":175,"salary_sacrifice":150,"ytd_gross":42700,"ytd_tax":6077,"ytd_ni":2838,"tax_code":"BR","ni_category":"B"}
]

Editorially reviewed

Last reviewed 2 May 2026How we calculate thisReport an error on this page