Xenophon to kill off big business tax cut

The prospects of tax cuts for big business look likely to be killed off by Nick Xenophon's team in the Senate.

The prospects of tax cuts for big business look likely to be killed off by Nick Xenophon's team. (AAP)

Nick Xenophon's team looks set to sink the boot into the Turnbull government's 10-year plan to cut the tax rate for big business to 25 per cent.

The government must woo nine of 11 votes on the Senate crossbench - the Greens have ruled out supporting the proposal and Labor will only back tax cuts for companies with revenue less than $2 million.

Senator Xenophon's team has three votes in the Senate and he has told the Financial Review his decision not to back the plan is final.