Is there really not much in it anymore tax wise between sole trader and LTD? are there no other benefits like pensions or other benefits? What profit level would make it worthwhile ?
You can pay into a company pension and its a tax deductible expense for the company.
You can get other benefits like a compnay vehicle but its not usually worth it as you would be liable for benefit in kind.
i think its good if you are getting into the 40% tax bracket as a sole trader as you can keep below the threshold as you can keep money in the company as distribute it as dividends at a more tax effective future date.
As for the profit level you would need to do the calculations.
The main benefit of course is the limited liabilty which isnt really an issue for a solo guy, maybe as you employ staff it becomes more important
A good chartered accountant would explain best, some accoutants are useless ive spoke to a few of those.