Re: More nonsense
"If they are really doing a contract job they should be charging enough to cover those things."
Effectively, if you are found to be inside IR35, you must take all of your companies sales as your salary. This means there is nothing left in the company to cover any of the above.
Let's say I'm contracting on £300/day. That would mean the company receives around £6k a month.
Outside IR35, they would pay expenses (account, travel, accommodation, salary). Let's say around £4.5k is left, which would be subject to corporation tax. This would leave around £3.6k. Assume around £2k is taken as dividends. There would therefore be around a grand and a half per month (£18k/year) left in the company to cover sick pay, holidays, pension contributions, and other contingencies. This is not a large amount, especially if the contractor ends up sick (or otherwise unable to work) for a significant amount of time, but it's something at least.
Inside IR35, effectively, all of the £6k must be drawn as salary. There is nothing left to cover the rest, not even to pay for the accountant. It is left up to the contractor, as an individual, to pay for these thing from his already-taxed personal income. The company cannot fulfil its obligations to its employee because it has no money left, because it has been forced to pay it all as salary.