ACC staff are receiving financial incentives to kick long-term claimants off the corporation's books official documents show, the Green Party says.
But while ACC Minister Judith Collins has acknowledged staff motivated to move some claimants back into work, that was "a good thing.''.
Green ACC spokesman Kevin Hague said documents released under the Official Information Act showed ACC staff working with people receiving long-term claim payments had specific targets they had to achieve.
"Those same workers' remuneration is tied to achieving these targets.''
Mr Hague said it was "completely unacceptable that one of the performance mechanisms for ACC staff receiving pay is how many claimants are cut off from receiving their entitlements''.