Directors' NI calculator
A special method applies to the calculation of directors' and their companies' NI on salary, bonuses, etc. HMRC also allows an alternative method, but where this is used a calculation should be made at the end of each tax year using the special method to ensure that the correct amount of NI has been paid.
Purpose of the calculator
Our calculator works out the NI payable for any given pay period using the special method for directors’ pay. It automatically adjusts the calculation where a director was appointed during the year.
Related Topics
-
Sharing salary with your partner
You’re a director with a substantial salary and your partner isn’t working right now. If you could split your salary with your partner the tax saving would make a real difference. How can you legitimately share your salary to improve the overall tax position?
-
HMRC bungles 2026/27 PAYE codes for pensioners
For some pensioners, the 2025/26 winter fuel payment should be collected via their 2026/27 PAYE code. HMRC has started to issue PAYE codes for the new tax year, but the extra charge is missing. What's going on?
-
Are you including too much income in your calculations?
Your business is partly exempt and you claim input tax on your mixed costs and general overheads by using the standard method based on turnover splits. What income should you exclude from the calculations?




This website uses both its own and third-party cookies to analyze our services and navigation on our website in order to improve its contents (analytical purposes: measure visits and sources of web traffic). The legal basis is the consent of the user, except in the case of basic cookies, which are essential to navigate this website.