"It's an area that might get a look in this time - there still are losses in real estate and I don't know if they have hit that on the head," said David Patterson, a consultant at Chapman Tripp. "It's that type of activity that has not yet been addressed."
Patterson said tackling loopholes in property investment may result in less political fallout for the National Party than further hikes on tobacco, where the excise was increased by 20 per cent over the past year.
"These taxes are high and they have a disproportional impact on lower income people," he said. "It would be particularly harsh in these economic times. I would question whether that is a smart move."
The Crown collected $145 million in excise from locally produced tobacco and a further $746 million from taxes on imported tobacco, according to the government's financial statements for the nine months ended March 31. It made $517 million from the excise on alcohol produced domestically and $177 million on imported alcohol.
A Ministry of Health discussion paper released last month modeled the impact on smokers' behavior if the price of a packet of 20 cigarettes rose to $100 over the next eight years from around $16 today, to help achieve the goal of a 'smokefree New Zealand' by 2025.
However, Prime Minister John Key moved quickly to stub out any thought of such a dramatic rise.
A Treasury ready-reckoner says every $10 increase in the excise charged on 1,000 cigarettes is expected to raise some $15 million extra annually, taking into account the expectation that some people will quit smoking as the price rises.