Deferring the tax is exactly what having a company does.. but also remember you may not necessarily need to live off a high income, so if you pay yourself from the company, your tax rate will still be low, not the damn 49 odd %.
+ easier to come up with deductions etc
Its working for me at the moment, the money it costs to start up + maintain have been recovered many times over!
Nurgle
umm what Jayson said

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