In the UK employers have to pay a &quot;National Insurance&quot; Contribution on top of the employee&#x27;s contribution.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;National_Insurance" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;National_Insurance</a>