Worth noting that the IR35 landscape is changing. IMO the best days of contracting are gone. Get caught with IR35 in the public sector and you'll pay huge tax with no ability to claim ANY expenses either and this is going to be rolled out to the private sector. If you have some contracts inside and some outside it can be worse in some ways. More paperwork, accountant to pay, insurances to pay, a weekly fee to pay the umbrella company (inside IR35). Lots of tax and lots of fees and lots of time outside of working hours doing the paperwork and managing it all, something HMRC is not considering, and many companies won't be upping their rates to cover contractor problems.
During the good days as I needed less money I could manage my income, for example, taking only £25k out of the company sometimes in a year if that's all I needed. In contracting it's possibly to burn out so this was one reason to do this was in case I needed to give it all up later so had a company pot I could continue taking a salary from. Inside IR35 you take the lot as PAYE. Work half a year only and you'll have to wait to get a tax refund the next year now, rather than being able to manage your own salary and likely tax payments.
Sad times IMO for contractor.s.
Interviews are different. It's more about "can this person do this role for x months", rather than all the HR BS that goes with permanent positions. Questions like "where do you see yourself in x years" are simply not asked. If they do, laugh at them and walk out
I'm at the end of my time now and work with clients myself if it's appealing.
I can see in future at least 50% of contracts will be inside IR35. A good local permanent salary will be more appealing than working away from home and having to cover expenses post tax.