According to Reuters, interbank futures are not fully priced for a hike until early 2019. The Australian dollar sank on the disappointment, which benefited the kiwi against both the Aussie and the US dollar.
"A lot of people try to play the down-under trade - the kiwi/Aussie cross - but the cross can't absorb the flow so the kiwi-US also ends up moving up," said Martin Rudings, senior dealer foreign exchange at OMF in Wellington.
He said the overnight global dairy auction also helped support the New Zealand dollar given that the whole milk powder price held up well. The GDT price index rose 0.4 per cent in the latest Global Dairy Trade auction, the first gain in five auctions, while whole milk powder climbed 1.7 per cent
He said, however, the kiwi won't have far to run.
"I don't think any rally is going to be sustained just at the moment."
The focus remains firmly on the US tax reform as well as jobs data out of the US overnight Friday.
The trade-weighted index was at 72.83 from 72.62. The New Zealand dollar was at 51.32p from 51.19p and rose to 58.22 euro cents from 58.05 cents. It was at 77.37 yen from 77.56 yen and 4.5617 yuan from 4.5579 yuan.
New Zealand's two-year swap rate fell 1 basis points to 2.14 per cent, while the 10-year swap rate fell 4 basis points to 3.07 per cent.
