Can I get some context on this? This is not the panama leak that's been blowing up today, right?

No, today's leak has not yet been published. This the leak from 2013, 260Gb of data named the Offshore Leaks: https://fr.wikipedia.org/wiki/Offshore_Leaks

To be quite honest it's and nice effort. But I think most large companies already don't pay that much of taxes. Like in Belgium the company tax is around 33%. There are already some accounting tricks to get the taxable amount down. There are even some legal ones made for multinationals. Second those companies mostly got tax deals that they pay less than 1% company taxes. So even opening it up doesn't work. But these companies can bend the rules as they want.

Basically...we should just count the number of accountants and lawyers a company hires and tax that number by a yearly adjusted multiple.

What if you hire an accountancy company to do your taxes? How do you calculate that then?

Accounting companies would pay exhorbitant taxes so, to be viable, their clients would have to pay for it.

Don't make too much sense or they'll make a law against it

Basically the top 1% richest are there in this list.