UK National Insurance Calculator
Estimate your employee Class 1 NI
Calculate annual, monthly and weekly National Insurance for the 2026/27 tax year.
Choose whether you are entering annual, monthly or weekly gross pay.
Annual gross pay
Enter your gross annual salary before tax and NI.
Your gross employment pay before Income Tax and National Insurance.
Common annual salaries:
Annual NI
£1,794.40
Effective NI rate
5.13%
Your estimated National Insurance
Employee Class 1 NI estimate for 2026/27. Assumes you are below State Pension age and have one employment.
NI calculation breakdown
Key NI thresholds 2026/27
£12,570.00
Primary Threshold
NI starts above this
8%
Main NI rate
Between PT and UEL
£50,270.00
Upper Earnings Limit
2% above this
This calculator shows employee National Insurance only. For Income Tax and take-home pay together, use the Take Home Pay Calculator. For self-employed Class 2 and Class 4 NI, use the Self-Employed Tax Calculator.
About the UK National Insurance Calculator
Use this National Insurance calculator to estimate how much employee Class 1 NI you pay in the 2026/27 tax year. Enter annual, monthly or weekly gross pay to see annual, monthly and weekly NI, plus your effective NI rate.
For 2026/27, most employees pay 8% NI on earnings between £12,570 and £50,270, and 2% on earnings above that. Earnings up to the Primary Threshold are not charged employee NI.
This is an employee NI calculator for PAYE workers in England, Wales, Scotland and Northern Ireland. It does not calculate self-employed Class 2 or Class 4 NI — use the Self-Employed Tax Calculator for that.
For official guidance, see GOV.UK National Insurance and GOV.UK NI rates and thresholds.
Results are estimates based on standard employee Class 1 rules and may differ from payroll if you have salary sacrifice, multiple jobs or have reached State Pension age.