ACT leader David Seymour has claimed there will be only one winner if the Government introduces a comprehensive capital gains tax - the accountancy industry.



The final recommendations from Sir Michael Cullen's tax working group are due out just before lunchtime on Thursday, and is expected to recommend a capital gains tax that excludes the family home.

"All of the people who go to work every day in New Zealand and pay taxes on their wages and their salaries look at somebody who isn't paying tax on income that they get from another source, and they wonder why," Finance Minister Grant Robertson said last year.

It could be offset by a reduction in income tax, such as a tax-free threshold at the bottom.

Mr Seymour told The AM Show on Thursday more Kiwis will be affected than many might think.



"Labour say, 'We're going to stick it to what Michael Cullen calls 'rich pricks'. In reality, this is everybody. It's somebody who has a hairdressing business that they've built up a few hundred grand of goodwill - that's a capital gain that would be taxed.

"Just remember there are 3 million people - almost every adult New Zealander - is now in KiwiSaver, $50 billion worth of assets in KiwiSaver accounts. All that would be taxed by capital gains. This is comprehensive - and it's not just rich pricks, as Michael Cullen likes to say - it's actually everybody who believes in putting something away today to invest for a better tomorrow. If you do that, you end up being double-taxed."