Customs Minister Nicky Wagner confirmed the cash detector dog team would now number five following the addition of Kane, who will work at Christchurch, Queenstown and Dunedin airports.
Detector dogs have sniffed out more than $2.5 million of undeclared or concealed cash at the border since starting work 10 months ago.
The largest find was at Auckland Airport in October when a detector dog led Customs officers to discover $390,000 on two travellers.
Travellers carrying more than $10,000 must declare it.
If people did not declare the money, they might have to forfeit it and pay a fine, depending on the circumstances, she said.
Three cash detector dogs are based in Auckland and one in Wellington.
All five dogs area also trained to detect drugs.
