Tax free rate? That's very meh compared to the USA where there is a huge swatch of NEGATIVE tax rates for a bunch of people. Yes, they receive income tax "refunds" that are more than the total income taxes they've paid! Oh, and so far there is no evidence that it encourages such people to work.

All true!
Tesla reported zero federal income tax paid on almost $5.7 billion of U.S. income in 2025.

Southwest Airlines avoided all federal income tax on $561 million of income last year; its competitor United Airlines achieved the same zero-tax result on almost $4.3 billion of U.S. income.

Live Nation Entertainment paid zero federal income tax on $98 million of U.S. income.

Yum! Brands, paid no federal income tax on over $1 billion of U.S. pretax profits last year.

PayPal, Toast, and Block—collectively paid zero federal income tax on $3.2 billion of U.S. income.
And the list goes on...
Many Profitable Companies Paid $0 in Federal Income Tax in 2025 = Total National Debt: $39 Trillion and climbing, fast: usdebtclock.org: U.S. National Debt Clock : Real Time

This is what a rigged system looks like.

itep.org - Profitable corporations paid zero income tax in