Hi Alexandra,
Entering an estimate under £1000 may tell you that registering as a Sole Trader is unnecessary, as your income falls within the Trading Allowance of £1000.
If you are uncomfortable entering an estimate over £1000 to complete your registration, contact us by webchat or phone via
Self Assessment: general enquiries- we can complete your registration without an estimate, and advise your further on completing your return.
Registering your business under your own name will have no advantage or disadvantage over registering under a created business name.
Thank you.