Class 4 NIC Contributions 2012/2012 17 Apr 2012 Gemma Latest News, Rates and Allowances No comment Class 4 National Insurance Contributions are paid by Self-employed persons on NET trading business profits as follows:- £7,605 – £42,475 9% £42,475 + 2% Related posts: Self Assessment Diary 2011/2012 Main Income Tax Reliefs 2011-2012 Class 1 NIC Contributions 2012/2013 Personal Allowances 2012/2013 Class 2 NIC Contributions
