Thanks for the replies and links. I guess the below excerpt answers my question:
"Similarly, an individual whose services are provided via an intermediary
and who incurs expenses in living away from home cannot claim the cost of living
away from home."
"The fact that an intermediary may provide the individual’s service under a series of
short-term contracts does not alter the position. Each location at which the individual
provides services becomes a "normal place of work" while the services are being
provided to that end-user. The expenses of travelling from home to each of these
locations or the expenses of living at those locations cannot be reimbursed tax-free."
"The situations dealt with in Tax Briefing 3 of 2013 are to be distinguished from
situations where a company provides goods or services, other than the services of a
specific individual, to its customers or clients. There is no change in Revenue’s
interpretation or application of the law in relation to such cases. Previous Revenue
published practice as set out in Revenue leaflets IT51 and IT54 and Statement of
Practice SP IT/02/2007 continues to apply."
If I could justify Dublin as my normal place of work would this justify my claims of expenses for accommodation and subsistence in Canada? I guess this is how the company that I currently work for as a permanent employee can send employees abroad for periods of over 6 months covering their accommodations costs and paying them a subsistence rate and using this as a business expense.
Questions on the corporation tax, if I have a limited company and I pay myself a salary that leaves zero profit left in the company, there's nothing left to pay corporation tax on though?