Senators push for CPD tax plan inquiry

The Greens are warning they will move to derail plans to cap tax deductions for self-education expenses if they remain in their current form.

Greens leader Senator Christine Milne (pictured) said Monday the party would move to send any proposed legislation to a full Senate inquiry, because it had "major concerns" with the plan so far.

The party currently holds the balance of power in the Senate.

"The Greens are concerned that while the current scheme may need better targeting, the $2,000 cap is a blunt instrument,