Registering as self-employed:
First things first, if you start working for yourself you must register with HMRC within the first 3 months
Do it here ---------------------------------
If you need any advice call HMRC's newly self-employed helpline 0845 915 4515
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National Insurance & low income:
If you expect to earn less than £5075 this tax year you may be able to apply for a small earnings exemption certificate to avoid paying Class 2 NI contributions.
Paying them voluntary may help protect some entitlement to benefits. If you are unsure get advice from an accountant.