Hi Bronte,
The cases in question are audits of Ltd Companies set up by a contractor, effectively a one-man band, rather than audits of self-employed individuals. So Bronte Ltd as opposed to Bronte.
Bronte Ltd contracts with the "employer" (Multinational PLC) to provide the services of Bronte.
Revenue aren't (yet at least) trying to look-through Bronte Ltd to impose an employment relationship between the PLC and Bronte performing the work. The employment relationship exists between the Bronte Ltd, and Bronte.
The thrust of the project has been to identify cases where Bronte Ltd is invoicing a customer, and only paying a relatively small salary to Bronte, but also paying out substantial amounts in tax-free expenses to this employee, in some cases the expenses exceeding or being a multiple of the salary.
So Bronte might go from being a PAYE employee of the multinational, earning €65k, to being an employee of Bronte Ltd, which invoices €80k p.a. to the same company to provide Bronte's services. Bronte is paid a salary of €33k, maximising her standard rate tax band, and also pays Bronte Junior, a teenage child, 9k p.a. for miscellaneous office type work. Then Bronte receives €30k in travel and subsistence payments from Bronte Ltd, tax-free, for travelling between the company base (at home) and the client's premises.
Bronte is delighted, because she is now netting way more take home pay.
The final customer is delighted, because they have gone from having an employee costing them €65k + 10.75% employers' PRSI + 8%-10% annual leave + various employers' obligations (redundancy entitlements etc...), to having a more flexible arrangement with a lower overall cost to them.
The exchequer, via Revenue, is sad, because it is losing substantial revenues from the arrangement - if there is legitimate avoidance involved they might decide to address it via legislation, but if the loss is via evasion in the form of non-allowable tax-free payments, that's a different matter. Hence the Revenue focus on the area, and the results would appear to indicate a good deal of the latter was/is present.