Net Pay Calculation:
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The net pay is calculated by subtracting income tax, national insurance, student loan repayments, and pension contributions from your gross salary. The formula is:
Tax rates and thresholds:
NI rates 2025-26:
Repayment thresholds:
Q1: Is pension contribution deducted before tax?
A: Yes, pension contributions are deducted from your gross pay before tax and NI are calculated.
Q2: How accurate is this calculator?
A: This provides an estimate based on standard tax codes and assumes no other deductions or allowances.
Q3: Are bonuses included in gross pay?
A: Yes, include all taxable income in your gross pay figure.
Q4: What about other deductions?
A: This calculator doesn't account for things like childcare vouchers, union fees, or other voluntary deductions.
Q5: How often are tax brackets updated?
A: Tax brackets are typically updated annually in the UK Budget.