Prime Minister Jacinda Ardern says she supports the work of Kiwi troops in Iraq but hasn't made any commitment to extend their role beyond next November.
Troops won't be withdrawn early but there will be a review of the joint training mission with Australian forces in Taji before their mandate comes up for renewal next year.
The mission came up in Ms Ardern's talks with Australian Prime Minister Malcolm Turnbull in Sydney on Sunday.
Ms Ardern made no commitment to Mr Turnbull beyond what's in place now and said she didn't think he would have expected one.
"It is a complex conflict, things could change dramatically between now and then," she said.
"Certainly we'll be looking at the outcomes and what we've achieved through that joint deployment at the point that that mandate comes up for renewal."
Ms Ardern was not clear on whether she'd travel to Iraq before making a decision but said she'd want to get as close to the deployment as possible beforehand.
But it would be a matter of timing as to whether she could fit in a visit to Taji by next November.
Defence Minister Ron Mark has already revealed that he'd like to travel to Iraq soon.