Maximum National Insurance contributions calculator
If you earn income from more than employment or self-employment (including a share of partnership profit) in the same tax year, you are usually required to pay NI on each. This may result in you overpaying contributions, although it’s still possible to underpay, which could jeopardise your state pension rights.
Related Topics
-
Who can't yet sign up for MTD IT?
Making Tax Digital for Income Tax (MTD IT) becomes mandatory from April 2026 for sole traders and landlords with qualifying income over £50,000. However, HMRC’s current guidance makes clear that not everyone can sign up yet. If you are preparing early, are you actually eligible?
-
Pay self-assessment tax
-
MONTHLY FOCUS - PROFIT EXTRACTION PLANNING AHEAD OF 5 APRIL 2026
The end of the 2025/26 tax year is fast approaching. In this Monthly Focus we look at ways to get money out of your company tax efficiently, and consider whether limited is still the way to go for your business.
Using the calculator
The calculation required to check NI contributions can involve a number of steps. Using the minimum data our calculator works out whether you have paid too much or too little NI and produces a report you can send to HMRC to support a claim for repayment, if appropriate.
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.