United Kingdom Tax Deductions

Source-backed employee estimate for 2026-04-06 to 2027-04-05. Reference table: England; choose your actual jurisdiction below.

Deductions & supported scenarios

Supported payments: Net pay pension. Tax deductibility and actual cash payments are tracked separately. Enter only the payment arrangements described in the questions and country limitations.

Where an optimisation scenario is supported, the engine recalculates tax and shows the trade-off in spendable income. Absence of a suggestion does not establish that no other legal relief exists.

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Calculation assumptions

  • UK resident, age 21 to 64, ordinary NI category A employee throughout the tax year.
  • Salary is paid equally across twelve monthly payroll periods. Tax is an annual estimate; NI and loan deductions use monthly thresholds and rounding.
  • Standard Personal Allowance only; the selected home nation determines non-savings income-tax rates.
  • Any pension entered is a gross employee contribution under a net pay arrangement, not salary sacrifice or relief at source.
  • Pension contributions must fit your confirmed available annual allowance including employer contributions; no previous flexible pension access, carry-forward or annual allowance charge is assumed.
  • No child benefit, marriage transfer, other income, benefits in kind or nonstandard tax codes.

Coverage & limitations

Coverage: Standard · Rule version: GB-2026-27-v1 · Tax year: 2026-27 · Independent verification: pending.

  • Supported ages 21-64 and NI category A only. Other ages and contribution categories require additional rules.
  • Annual income-tax estimate for 6 April 2026 to 5 April 2027; payroll tax-code rounding may differ.
  • Monthly NI and student-loan deductions assume equal earnings; irregular pay and part-year work are unsupported.
  • Only gross net-pay pension contributions are supported, up to £60,000 and gross income up to £200,000 when contributions are entered, assuming sufficient remaining allowance.
  • Salary sacrifice, relief at source, pension annual-allowance charges, child benefit charges and government benefits are not included.
  • Employer cost excludes workplace pension, Apprenticeship Levy and employer-level Employment Allowance.
  • Loan stop notices, remaining balances and multiple undergraduate loans are not modelled. Independent professional review pending.

Official sources

Source research date: 16 October 2026. This is distinct from independent professional verification. Automated source checks appear in the administration dashboard after the worker runs.

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