The rules for Class 2 NIC have changed for the 2023/23 tax year onwards.
Prior to the 2022/23 tax year you needed to pay Class 2 NIC if your profits were above the Small Profits Threshold, which was £6,515 in the 2021/22 tax year.
For 2022/23 onwards, you pay Class 2 NIC if your profits are above the Lower Profits Limit,(which is £11,908 in 2022/23). If your profits are below the Small Profits Threshold (£6,725 in 2022/23) then you can choose to pay voluntary Class 2 NIC. If your profits from self-employment are between the Small Profits Threshold and the Lower Profits Limit then there is no Class 2 NIC to pay – instead you will be treated as making Class 2 NIC. This will mean you will be able to access entitlement to contributory benefits in the same way as if you had paid Class 2 NIC.
For 2023/24 onwards, the Lower Profits Limit will be the same amount as the personal allowance for income tax.
Further information on this is available from the Government website here:
https://www.gov.uk/government/publications/rates-and-allowances-national-insurance-contributions/rates-and-allowances-national-insurance-contributions