What services are you going to be offering to your clients?
You will need to register for MLR and also with the ICO as these are both legal responsibilities, also highly recommended to get Professional Indemnity Insurance in place.
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Doug
These are only my opinions of how I see things and therefore should not be taken as advice
I'm going to start off offering basic Bookkeeping and Tax Return support using a digital system, possibly Xero. So Sole Traders and small businesses who don't have any staff.
I'm Qualified IAB Bookkeeper and couldn't get a job as a Bookkeeper due to not having any experience, yet the same firms wouldn't give me work experience either.
I was self-employed for 7 years in another trade and completed my own accounts and Tax returns, so I have basic knowledge. I'm literally going to be learning as I go.