Do I pay Class 2 and 4 National Insurance on Miscellaneous Income?Hello, this is my first post. I found the forum recently and think it's a great idea and service. I have a question about miscellaneous income and whether it impacts Class 2 and Class 4 National insurance. If I'm not earning via self employment, but receive income (e.g. £20,000) from miscellaneous sources (crypto), is Class 2 and Class 4 National Insurance payable? In addition, would the £20,000 figure count towards the annual contribution allowance of a Self-Invested Personal Pension (SIPP) ? Thank you.