Self Employed - Working for a single company (Help Please)

[Danny4494]

Been offered a position today long story short it’s job surveying various land all over the the UK all for one business, they pay X amount for mileage allowance and X amount for expenses while working for hotel food etc they will provide a work phone.

The work is on a self employed basis with the promise of a full days work every day, just invoice them at the end of the week.

Now the couple of questions I have are:

Tax purposes what’s the best way for me to go about it ?

Not worked in this manner before anyone doing same thing with any input ?

Thanks for any replies

[Danny4494]

Thanks guys appreciate the input, there’s no contracted set hours basically the jobs come in on a Friday and you choose what jobs you want for the week after you could choose 0 or you could book your self 4-5 days work I’m not sure if/how that correlates to the IR35 rule?

Pretty certain I’ll take the sole trader route too