I was a ltd company

david2867:
I source my services out to haulage companies

As well as the other good advice that you’ve received in this topic, there are a few ‘tests’ that will be applied to see whether you’re genuinely self-employed…

You need to have a number of different clients (several)
You need to be supplying kit/tools for the job.

I’d advise you to ask an accountant, because everybody’s circumstances are a bit different, especially when it come to serious stuff like HMRC.

There are very few genuinely self-employed truck drivers, most of the genuine ones own their own truck(s) so please tread carefully, otherwise it might come back to bite you later.