banterbus
As others have said this is hugely employer dependant.
As you are obviously aware you may well get allowances to cover meals downroute and other expenses for costs whilst on duty, as well as some form of flying pay, but every company seems to do it differently and every now and then change their system.. same tends to apply to the structure of pay for flying hours.
That said the UK HMRC assume your allowances are there to pay for expenses downroute, and are increasingly looking at what crew really spend with a view to increasing the tax take (for example we now have to retain receipts in case of a HMRC check as part of an ongoing audit..).
If you are thinking of "commuting" from outside the UK the whole situation is further complicated by the fact that your country of domicile could have it's own bespoke method of taxation on aircrew, aircrew salaries and aircrew allowances...that may be advantageous but it may not be in some countries and people have been caught out by "rumour control", so you do need to do the "due diligence".
I think that without having a more specific idea of your plans, especially who your prospective employer is going to be, (and I accept you don't want to compromise yourself) it is hard to offer really specific advice.
Last edited by wiggy; 12th Nov 2017 at 16:43.