How this is calculated
Employee Class 1 National Insurance is charged on gross pay above the primary threshold of £12,570 a year. Between the primary threshold and the upper earnings limit of £50,270, the rate is 8%. Above the upper earnings limit, the rate drops to 2% on the excess, which is why higher earners see a smaller marginal NIC rate than middle earners.
This calculator applies both bands to an annual salary figure using the standard Category A rates that apply to most employees. It does not model married women's reduced rate elections or the deferment rules for people with multiple jobs.
For directors, NIC can be calculated on either a cumulative annual basis or a standard period-by-period basis known as the alternative method; this tool uses the simpler annual approach, which mirrors the amount ultimately due for the year.
Why NIC bands differ from income tax bands
National Insurance thresholds do not line up with income tax thresholds. The primary threshold of £12,570 matches the personal allowance, but the upper earnings limit of £50,270 is set independently and does not move with the higher rate income tax threshold, which creates the well-known combined marginal rate for employees earning in the standard band once tax and NIC are added together.
This matters for salary planning, since raising a salary above the upper earnings limit only adds 2% NIC on the extra, whereas raising it within the main band adds 8%, alongside the applicable income tax rate.
What this means for director salary decisions
Many director-shareholders set salary just above the primary threshold specifically to keep employee NIC low or nil while still building a qualifying year for the state pension, then take further income as dividends. This calculator helps quantify the NIC cost of any salary level being considered.
It is worth reviewing this alongside employer NIC and the employment allowance, since the combined employer and employee NIC cost, not just the employee deduction, drives the overall efficiency of a chosen salary level.
What this means for your company
Treat the result as a planning figure for the 2026/27 tax year. If it changes what you were about to do, take a director's salary, a dividend, a large asset purchase or a filing decision, check it against your own accounts first. We can review the position with you and confirm the tax treatment before you commit.
Frequently asked questions
What is the employee National Insurance rate for 2026/27?
8% on earnings between the primary threshold of £12,570 and the upper earnings limit of £50,270, and 2% on earnings above that.
Do I pay employee NIC on dividends?
No. National Insurance only applies to earnings from employment or self-employment, such as salary. Dividends are not earnings and carry no National Insurance charge, only income tax.
Why does my NIC rate fall from 8% to 2%?
Because the upper earnings limit caps the higher 8% rate. Above that point you still pay NIC, but only at 2%, which is why NIC feels less progressive than income tax at higher salaries.
Does a low salary still count towards my state pension?
Yes, provided it is at or above the lower earnings limit, you get a qualifying year for state pension purposes even if the salary is below the primary threshold and no NIC is actually paid.